{"title":"All Green Roof Products","description":null,"products":[{"product_id":"green-roof-edge-trim-connector","title":"UGR Green Roof Edge Trim Connector","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eJoin green roof edge trims quickly and neatly\u003c\/h3\u003e\n\u003cp\u003eUGR Green Roof Edge Trim Connector provides a simple way to join straight aluminium edge-trim lengths around a green roof or landscaping area.\u003c\/p\u003e\n\u003cp\u003eThe connector holds the adjoining trims together to create a neat longitudinal joint, helping maintain a continuous and consistent perimeter around the installation.\u003c\/p\u003e\n\u003cp\u003eIt is designed for use with the \u003ca href=\"\/products\/green-roof-edge-trim\"\u003eUGR Aluminium Green Roof Edge Trim – 1m\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eSimple push-fit connection\u003c\/h3\u003e\n\u003cp\u003eInstallation is quick and straightforward:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ePosition the two edge-trim lengths so their ends meet.\u003c\/li\u003e\n\u003cli\u003ePush the end of the first trim into one side of the connector.\u003c\/li\u003e\n\u003cli\u003ePush the adjoining trim into the other side.\u003c\/li\u003e\n\u003cli\u003eCheck that both lengths are seated securely and remain correctly aligned.\u003c\/li\u003e\n\u003cli\u003eContinue installing the edging system around the roof perimeter.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eNo complicated tools or jointing method are required, making the connector suitable for both DIY green roof projects and professional installations.\u003c\/p\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003ePart of a modular edging system\u003c\/h3\u003e\n\u003cp\u003eThe connector forms part of the UGR aluminium edging range, allowing straight trims and pre-formed corners to be combined around the roof layout.\u003c\/p\u003e\n\u003cp\u003eComplete the system with the \u003ca href=\"\/products\/green-roof-edge-trim\"\u003eUGR Aluminium Green Roof Edge Trim – 1m\u003c\/a\u003e, the \u003ca href=\"\/products\/green-roof-edge-trim-internal-corner\"\u003eUGR Green Roof Edge Trim Internal Corner\u003c\/a\u003e and the \u003ca href=\"\/products\/green-roof-edge-trim-external-corner\"\u003eUGR Green Roof Edge Trim External Corner\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eThis connector is intended for joining compatible straight aluminium edge-trim lengths. It is not designed to form changes in direction; please use the appropriate pre-formed internal or external corner for 90° corners.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Product type\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Aluminium edge-trim connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Purpose\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Connects straight edge-trim lengths\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Joint type\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Longitudinal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Installation method\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Push fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Compatible product\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e UGR Aluminium Green Roof Edge Trim – 1m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eWhat is the edge trim connector used for?\u003c\/h4\u003e\n\u003cp\u003eIt joins two compatible straight aluminium edge-trim lengths into a neat, continuous longitudinal joint.\u003c\/p\u003e\n\u003ch4\u003eHow is the connector installed?\u003c\/h4\u003e\n\u003cp\u003ePush one trim length into each side and check both are securely seated and aligned.\u003c\/p\u003e\n\u003ch4\u003eDo I need tools to fit it?\u003c\/h4\u003e\n\u003cp\u003eNo specialist tools are required for the push-fit connection.\u003c\/p\u003e\n\u003ch4\u003eCan the connector be used to create corners?\u003c\/h4\u003e\n\u003cp\u003eNo. Use a compatible internal or external corner where the edging changes direction.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed help calculating your edging components?\u003c\/h3\u003e\n\u003cp\u003eNot sure how many connectors, trim lengths or corners your green roof perimeter will require? Our in-house technical team can provide free, practical advice on planning the complete edging system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":52478290919767,"sku":"UGRETC","price":4.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/aluminium_edge_trim_connector_fw.jpg?v=1785665836"},{"product_id":"green-roof-root-barrier","title":"UGR Green Roof Root Barrier","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eProtect your waterproofing from root damage\u003c\/h3\u003e\n\u003cp\u003eUGR Green Roof Root Barrier creates a tough physical barrier between your green roof vegetation and the waterproofing layer beneath.\u003c\/p\u003e\n\u003cp\u003eSuitable for extensive and intensive green roof systems, it helps protect the roof structure, waterproofing and services from damage caused by plant and tree roots. It can also provide protection against invasive plants including Japanese knotweed, giant hogweed, bamboo and mares tail.\u003c\/p\u003e\n\u003cp\u003eThe membrane is UV stabilised, lightweight to handle and resistant to natural acids, alkalis, bacteria and fungi. Its high puncture resistance makes it suitable for long-term use within both domestic and commercial green roof build-ups.\u003c\/p\u003e\n\u003ch3\u003eTriple-coated reinforced construction\u003c\/h3\u003e\n\u003cp\u003eDespite being only 0.5mm thick, the root barrier achieves a puncture resistance of 4,500N. Its durable construction consists of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTwo woven polyethylene reinforcement layers\u003c\/li\u003e\n\u003cli\u003eA thermoplastic low-density polyethylene coating between the woven layers\u003c\/li\u003e\n\u003cli\u003eAn additional LDPE coating on each external surface\u003c\/li\u003e\n\u003cli\u003eThermally bonded layers for added strength and stability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis coating–woven–coating–woven–coating build-up provides strong resistance to puncturing, stress and cracking while remaining easy to cut and install.\u003c\/p\u003e\n\u003ch3\u003eSuitable green roof applications\u003c\/h3\u003e\n\u003cp\u003eUGR Green Roof Root Barrier can be used as part of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFlat green roof systems\u003c\/li\u003e\n\u003cli\u003ePitched green roof systems\u003c\/li\u003e\n\u003cli\u003eExtensive green roofs with lightweight planting\u003c\/li\u003e\n\u003cli\u003eIntensive green roofs with deeper growing media and larger vegetation\u003c\/li\u003e\n\u003cli\u003eDomestic roofs, garages, extensions and garden buildings\u003c\/li\u003e\n\u003cli\u003eLarger commercial green roof projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIntensive green roofs normally also require a protective fleece above the root barrier to reduce the risk of mechanical damage during installation and ongoing maintenance. See the \u003ca href=\"\/products\/green-roof-protection-fleece-300\"\u003eUGR Green Roof Protection Fleece 300\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eAvailable sizes\u003c\/h3\u003e\n\u003cp\u003eChoose from two roll widths:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1m x 25m: covers 25m²\u003c\/li\u003e\n\u003cli\u003e2m x 25m: covers 50m²\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eVolume discounts are available when ordering multiple rolls.\u003c\/p\u003e\n\u003ch3\u003eInstalling the green roof root barrier\u003c\/h3\u003e\n\u003cp\u003eInstall the root barrier after the primary roof waterproofing has been completed and before laying the green roof drainage and water-storage layers.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eRoll the membrane out over the waterproofing layer.\u003c\/li\u003e\n\u003cli\u003eCut it to the required length using a sharp pair of scissors.\u003c\/li\u003e\n\u003cli\u003eOverlap adjoining sheets by at least 150mm.\u003c\/li\u003e\n\u003cli\u003eSeal across the face of each overlap with a compatible 300mm-wide overtape.\u003c\/li\u003e\n\u003cli\u003eWhere particularly aggressive roots are expected, apply compatible jointing tape between the overlapping sheets before sealing over the joint.\u003c\/li\u003e\n\u003cli\u003eAvoid service penetrations through the membrane wherever possible. Any unavoidable penetrations must be carefully sealed using compatible detailing products.\u003c\/li\u003e\n\u003cli\u003eOnce the root barrier is secure, install the specified green roof drainage layer above it.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eDepending on the proposed planting and water-storage requirements, suitable next layers may include the \u003ca href=\"\/products\/8mm-deck-wall-drainage-membrane\"\u003eUGR 8mm Deck \u0026amp; Wall Drainage Membrane\u003c\/a\u003e, or the \u003ca href=\"\/products\/20mm-storage-drainage-membrane-2m-x-10m\"\u003eUGR 20mm\u003c\/a\u003e, \u003ca href=\"\/products\/40mm-storage-drainage-board-1m-x-2m\"\u003eUGR 40mm\u003c\/a\u003e or \u003ca href=\"\/products\/60mm-storage-drainage-board-1m-x-2m\"\u003eUGR 60mm\u003c\/a\u003e Green Roof Drainage \u0026amp; Storage Membranes and Boards.\u003c\/p\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eThis product is not designed to act as the primary waterproofing or drainage layer. It must be installed over a suitable waterproofing system and beneath a dedicated drainage product such as the \u003ca href=\"\/products\/8mm-deck-wall-drainage-membrane\"\u003eUGR 8mm Deck \u0026amp; Wall Drainage Membrane\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 29.3658%;\"\u003e Material\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 70.5474%;\"\u003e Polyethylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 29.3658%;\"\u003e Construction\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 70.5474%;\"\u003e Woven geotextile with triple-coated LDPE film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 29.3658%;\"\u003e Colour\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 70.5474%;\"\u003e Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 29.3658%;\"\u003e Weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 70.5474%;\"\u003e 365g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 29.3658%;\"\u003e Thickness\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 70.5474%;\"\u003e 0.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 29.3658%;\"\u003e Roll length\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 70.5474%;\"\u003e 25m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 29.3658%;\"\u003e Roll widths\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 70.5474%;\"\u003e 1m or 2m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 29.3658%;\"\u003e Coverage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 70.5474%;\"\u003e 25m² or 50m² per roll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 29.3658%;\"\u003e Puncture resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 70.5474%;\"\u003e 4,500N to EN ISO 12236\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 29.3658%;\"\u003e Tensile strength\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 70.5474%;\"\u003e 34kN\/m MD; 31kN\/m CD to EN ISO 10319\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 29.3658%;\"\u003e Elongation\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 70.5474%;\"\u003e 25% MD; 20% CD to EN ISO 10319\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 29.3658%;\"\u003e Hydrostatic resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 70.5474%;\"\u003e 2,107kPa to ASTM D751-19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 29.3658%;\"\u003e Root resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 70.5474%;\"\u003e Passed DD CEN\/TS 14416:2005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 29.3658%;\"\u003e Additional properties\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 70.5474%;\"\u003e UV stabilised; resistant to natural acids, alkalis, bacteria and fungi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eWhere should the root barrier be positioned?\u003c\/h4\u003e\n\u003cp\u003eDirectly above the completed waterproofing layer and beneath the specified drainage or drainage-and-storage membrane.\u003c\/p\u003e\n\u003ch4\u003eHow much should adjoining sheets overlap?\u003c\/h4\u003e\n\u003cp\u003eAt least 150mm. Seal across the face of the joint with a compatible 300mm overtape, adding jointing tape within the overlap where aggressive roots are expected.\u003c\/p\u003e\n\u003ch4\u003eCan this root barrier be used on a pitched green roof?\u003c\/h4\u003e\n\u003cp\u003eYes. It suits both pitched and flat green roof systems, including extensive and intensive designs.\u003c\/p\u003e\n\u003ch4\u003eWhich roll size should I choose?\u003c\/h4\u003e\n\u003cp\u003eThe 1m x 25m roll covers 25m²; the 2m x 25m roll covers 50m². Choose the width that best suits the roof dimensions and installation layout.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eFree advice on your green roof build-up\u003c\/h3\u003e\n\u003cp\u003eNot sure which roll width you need, how to detail the overlaps or which drainage membrane should be installed above it? Our in-house technical team can provide free, practical guidance for your project.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"1m x 25m (25m²)","offer_id":54207506841943,"sku":"UGRRB25","price":174.5,"currency_code":"GBP","in_stock":true},{"title":"2m x 25m (50m²)","offer_id":54207506874711,"sku":"UGRRB50","price":374.5,"currency_code":"GBP","in_stock":true},{"title":"1m x 25m (25m²) (10 Rolls)","offer_id":54396537864535,"sku":"UGRRB25\/10","price":1549.75,"currency_code":"GBP","in_stock":true},{"title":"2m x 25m (50m²) (10 Rolls)","offer_id":54396537897303,"sku":"UGRRB50\/10","price":3106.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/UGRRootBarrier2.jpg?v=1787278846"},{"product_id":"green-roof-protection-fleece-300","title":"UGR Green Roof Protection Fleece 300","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eProtect the waterproofing beneath your green roof\u003c\/h3\u003e\n\u003cp\u003eUGR Green Roof Protection Fleece 300 is a mechanically strengthened fleece designed to protect the waterproofing layer within a green roof system.\u003c\/p\u003e\n\u003cp\u003eInstalled as part of the layered roof build-up, it helps reduce the risk of light mechanical damage during construction and after the green roof is complete. The fleece can sit beneath drainage membranes, drainage-and-storage layers or sedum trays, helping to protect the waterproofing and root barrier below.\u003c\/p\u003e\n\u003cp\u003eIt can also act as a separation layer between incompatible materials and hold approximately two litres of additional water per square metre.\u003c\/p\u003e\n\u003ch3\u003eRecycled, robust and versatile\u003c\/h3\u003e\n\u003cp\u003eManufactured from recycled plastic fibres, UGR Green Roof Protection Fleece 300 combines practical protection with environmental benefits that complement a living roof. Key benefits include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade from 100% recycled material\u003c\/li\u003e\n\u003cli\u003eFully recyclable\u003c\/li\u003e\n\u003cli\u003eRot-proof construction\u003c\/li\u003e\n\u003cli\u003eMechanically strengthened for improved durability\u003c\/li\u003e\n\u003cli\u003eConforms to GRO performance requirements for a protection layer\u003c\/li\u003e\n\u003cli\u003eSuitable as a separation layer between incompatible substrates\u003c\/li\u003e\n\u003cli\u003eStores approximately 2 litres of water per square metre\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe fleece is approximately 2.5mm thick and weighs 300g\/m², providing a protective layer without adding unnecessary bulk to the system.\u003c\/p\u003e\n\u003ch3\u003eWhere the protection fleece fits in the system\u003c\/h3\u003e\n\u003cp\u003eA typical green roof build-up may include:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eThe structural roof deck\u003c\/li\u003e\n\u003cli\u003eA suitable primary waterproofing system\u003c\/li\u003e\n\u003cli\u003eA root barrier, where required\u003c\/li\u003e\n\u003cli\u003eUGR Green Roof Protection Fleece 300\u003c\/li\u003e\n\u003cli\u003eA drainage or drainage-and-storage membrane\u003c\/li\u003e\n\u003cli\u003eFilter fleece, growing substrate and vegetation, or a compatible sedum tray system\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWhere root protection is required, install the \u003ca href=\"\/products\/green-roof-root-barrier\"\u003eUGR Green Roof Root Barrier\u003c\/a\u003e beneath the protection fleece.\u003c\/p\u003e\n\u003ch3\u003eInstalling the green roof protection fleece\u003c\/h3\u003e\n\u003cp\u003eThe fleece is supplied as a 2m-wide roll covering 100m². To install:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eComplete the primary waterproofing layer and allow it to become ready for subsequent layers in accordance with its installation instructions.\u003c\/li\u003e\n\u003cli\u003eInstall the root barrier first where the green roof design requires one.\u003c\/li\u003e\n\u003cli\u003eRoll the protection fleece out over the waterproofing or root barrier.\u003c\/li\u003e\n\u003cli\u003eCut it to the required length using a sharp pair of scissors.\u003c\/li\u003e\n\u003cli\u003ePosition the specified drainage membrane, drainage-and-storage layer or sedum trays directly above the fleece.\u003c\/li\u003e\n\u003cli\u003eTake care not to damage or displace the underlying layers while the remaining green roof components are installed.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe fleece protects the layers below from light mechanical damage caused by the drainage membrane, storage layer or sedum trays positioned above it.\u003c\/p\u003e\n\u003cp\u003eSuitable drainage layers include the \u003ca href=\"\/products\/8mm-deck-wall-drainage-membrane\"\u003eUGR 8mm Deck \u0026amp; Wall Drainage Membrane\u003c\/a\u003e, and the \u003ca href=\"\/products\/20mm-storage-drainage-membrane-2m-x-10m\"\u003eUGR 20mm\u003c\/a\u003e \/ \u003ca href=\"\/products\/25mm-storage-drainage-membrane\"\u003eUGR 25mm\u003c\/a\u003e Storage \u0026amp; Drainage Membrane, or the \u003ca href=\"\/products\/40mm-storage-drainage-board-1m-x-2m\"\u003eUGR 40mm\u003c\/a\u003e \/ \u003ca href=\"\/products\/60mm-storage-drainage-board-1m-x-2m\"\u003eUGR 60mm\u003c\/a\u003e Storage \u0026amp; Drainage Boards.\u003c\/p\u003e\n\u003ch3\u003eStorage and handling\u003c\/h3\u003e\n\u003cp\u003eStore the roll upright in dry conditions at temperatures between 5°C and 25°C. Keep it away from freezing conditions and direct sunlight, and protect it from prolonged UV exposure before installation.\u003c\/p\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eThis fleece is not a primary waterproofing membrane, root barrier or drainage layer; where root protection is needed, use the \u003ca href=\"\/products\/green-roof-root-barrier\"\u003eUGR Green Roof Root Barrier\u003c\/a\u003e, and install a suitable dedicated drainage membrane such as the \u003ca href=\"\/products\/8mm-deck-wall-drainage-membrane\"\u003eUGR 8mm Deck \u0026amp; Wall Drainage Membrane\u003c\/a\u003e above the fleece.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Material\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Recycled PP\/PES\/acrylic fibres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Material weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 300g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Thickness\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 2.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Colour\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Multicolour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Roll width\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 2m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Roll length\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 50m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Coverage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 100m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Roll weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 30kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Geotextile robustness class\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e GRC2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Static puncture resistance (CBR)\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 0.5kN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Dynamic puncture resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Tensile strength MD\/CMD\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 3kN\/m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Elongation MD\/CMD\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 50% \/ 65%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Opening size\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 70μm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Water permeability\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 58l\/(m²·s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Additional water storage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 2l\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Compliance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Conforms to GRO protection-layer requirements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eWhat does green roof protection fleece do?\u003c\/h4\u003e\n\u003cp\u003eIt protects the primary waterproofing and root-barrier layers from light mechanical damage during installation and throughout the roof's life, and can separate incompatible materials in the build-up.\u003c\/p\u003e\n\u003ch4\u003eWhere should the protection fleece be installed?\u003c\/h4\u003e\n\u003cp\u003eOver the completed waterproofing layer and root barrier where required. The drainage membrane, storage layer or sedum trays are then installed directly above it.\u003c\/p\u003e\n\u003ch4\u003eIs the protection fleece made from recycled material?\u003c\/h4\u003e\n\u003cp\u003eYes. It is made from 100% recycled material and is also recyclable.\u003c\/p\u003e\n\u003ch4\u003eHow much area does one roll cover?\u003c\/h4\u003e\n\u003cp\u003eEach roll measures 2m x 50m and covers 100m².\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed help planning the protective layers?\u003c\/h3\u003e\n\u003cp\u003eUnsure whether your roof needs a root barrier beneath the fleece, or which drainage layer should sit above it? Our in-house technical team can provide free, practical advice on choosing a compatible green roof build-up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":54207507333463,"sku":"UGRPF100","price":259.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/permaseal_protection_fleece_500_end_roll_fw.jpg?v=1787905264"},{"product_id":"25mm-storage-drainage-membrane","title":"UGR 25mm Storage \u0026 Drainage Membrane","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eHigh-capacity water management for green roofs\u003c\/h3\u003e\n\u003cp\u003eUGR 25mm Storage \u0026amp; Drainage Membrane combines water storage, drainage and filtration within one practical layer.\u003c\/p\u003e\n\u003cp\u003eManufactured from recycled high-density polyethylene, the membrane has 25mm-deep cavities that store approximately 11 litres of rainwater per square metre. This retained moisture helps support healthy green roof vegetation between periods of rainfall.\u003c\/p\u003e\n\u003cp\u003eThe membrane is also perforated, allowing excess water to drain into the space beneath rather than saturating the growing medium and plant roots.\u003c\/p\u003e\n\u003ch3\u003eIntegrated geotextile filter layer\u003c\/h3\u003e\n\u003cp\u003eEach roll has a high-quality polypropylene geotextile permanently bonded to its upper surface. This layer:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrevents soil fines and growing medium from obstructing the cavities\u003c\/li\u003e\n\u003cli\u003eHelps stop the geotextile slipping during installation\u003c\/li\u003e\n\u003cli\u003ePrevents the fabric compressing into the storage cups\u003c\/li\u003e\n\u003cli\u003eRemoves the need to install a separate loose filter layer\u003c\/li\u003e\n\u003cli\u003eSaves time when constructing the roof build-up\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUGR 25mm Storage \u0026amp; Drainage Membrane therefore performs three essential functions within one product:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e retains approximately 11l\/m² of water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrainage:\u003c\/strong\u003e allows excess water to pass through the perforations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e protects the drainage cavities against soil obstruction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 25mm cavity provides greater water-storage capacity than the UGR 20mm Storage \u0026amp; Drainage Membrane, while retaining the same approximate compressive strength of 150kN\/m².\u003c\/p\u003e\n\u003ch3\u003eSuitable applications\u003c\/h3\u003e\n\u003cp\u003eUGR 25mm Storage \u0026amp; Drainage Membrane can be used within:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExtensive green roof systems\u003c\/li\u003e\n\u003cli\u003eIntensive green roof systems\u003c\/li\u003e\n\u003cli\u003eFlat roofs\u003c\/li\u003e\n\u003cli\u003ePitched roofs\u003c\/li\u003e\n\u003cli\u003eInverted warm roof applications\u003c\/li\u003e\n\u003cli\u003eDomestic roofs and extensions\u003c\/li\u003e\n\u003cli\u003eGarages, sheds and garden buildings\u003c\/li\u003e\n\u003cli\u003eCommercial green roofs\u003c\/li\u003e\n\u003cli\u003eOther suitable walkable landscaping surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor walkable or drivable finishes, the bonded geotextile must be removed, the studs must be filled and the appropriate bedding or sub-base layers must be installed as part of the specified system.\u003c\/p\u003e\n\u003ch3\u003eAvailable sizes\u003c\/h3\u003e\n\u003cp\u003eChoose from two roll widths:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1m x 10m: covers 10m²\u003c\/li\u003e\n\u003cli\u003e2m x 10m: covers 20m²\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBoth versions include an additional 100mm geotextile overlap along the roll width. The 1m-wide roll may be easier to handle and position on smaller roofs or where site access is restricted. The 2m-wide version covers a larger area with fewer adjoining sections.\u003c\/p\u003e\n\u003ch3\u003eDurable and long-lasting\u003c\/h3\u003e\n\u003cp\u003eUGR 25mm Storage \u0026amp; Drainage Membrane is an inert, chemically resistant membrane designed for long-term use within the green roof build-up. It is:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManufactured from recycled HDPE\u003c\/li\u003e\n\u003cli\u003eResistant to water and alkalis\u003c\/li\u003e\n\u003cli\u003eResistant to saline solutions and organic acids\u003c\/li\u003e\n\u003cli\u003eUnaffected by minerals\u003c\/li\u003e\n\u003cli\u003eResistant to bacteria, fungi and other small organisms\u003c\/li\u003e\n\u003cli\u003eSuitable for temperatures from -30°C to +80°C\u003c\/li\u003e\n\u003cli\u003eGuaranteed against deterioration for 30 years\u003c\/li\u003e\n\u003cli\u003eTested and CE marked to the relevant standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts life expectancy is stated as equal to the design life of the structure under DIN 9001:2000.\u003c\/p\u003e\n\u003ch3\u003eWhere UGR 25mm Membrane fits in the system\u003c\/h3\u003e\n\u003cp\u003eA typical green roof build-up may include:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eStructural roof deck\u003c\/li\u003e\n\u003cli\u003ePrimary waterproofing layer\u003c\/li\u003e\n\u003cli\u003eRoot barrier, where required\u003c\/li\u003e\n\u003cli\u003eProtection fleece, where required\u003c\/li\u003e\n\u003cli\u003eUGR 25mm Storage \u0026amp; Drainage Membrane\u003c\/li\u003e\n\u003cli\u003eBonded geotextile filter layer\u003c\/li\u003e\n\u003cli\u003eGreen roof substrate\u003c\/li\u003e\n\u003cli\u003eVegetation\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eFor dedicated root protection, install the \u003ca href=\"\/products\/green-roof-root-barrier\"\u003eUGR Green Roof Root Barrier\u003c\/a\u003e beneath the drainage membrane. Where additional protection against light mechanical damage is required, use the \u003ca href=\"\/products\/green-roof-protection-fleece-300\"\u003eUGR Green Roof Protection Fleece 300\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstalling UGR 25mm Membrane\u003c\/h3\u003e\n\u003cp\u003eThe application surface should have a gradient of at least 2%. Complete the primary waterproofing and install any specified root barrier or protection fleece before laying UGR 25mm Storage \u0026amp; Drainage Membrane.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eRoll the membrane out over the prepared surface with the bonded geotextile facing upwards.\u003c\/li\u003e\n\u003cli\u003eCut it to the required length, taking care not to damage the waterproofing or other underlying layers.\u003c\/li\u003e\n\u003cli\u003eOverlap each adjoining roll by approximately 100mm.\u003c\/li\u003e\n\u003cli\u003eLift the geotextile overlap and lay it over the next section of membrane.\u003c\/li\u003e\n\u003cli\u003eWhere additional joint protection is required, seal the connection with a compatible jointing tape or sealant.\u003c\/li\u003e\n\u003cli\u003eAt vertical edges, raise the drainage membrane by at least 150mm or to the upper edge of the finished substrate layer.\u003c\/li\u003e\n\u003cli\u003eOnce installed, the membrane can immediately receive the specified extensive or intensive green roof substrate.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eFor smaller projects or restricted working areas, the 1m-wide version may be easier for one person to position.\u003c\/p\u003e\n\u003ch3\u003eStorage and handling\u003c\/h3\u003e\n\u003cp\u003eStore rolls upright in dry conditions between 5°C and 25°C. Do not expose the product to freezing conditions or direct sunlight, and protect it from UV before installation.\u003c\/p\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eUGR 25mm Storage \u0026amp; Drainage Membrane is a drainage and water-storage layer, not a primary waterproofing membrane. It must be installed above a suitable waterproofing system and, where required, the \u003ca href=\"\/products\/green-roof-root-barrier\"\u003eUGR Green Roof Root Barrier\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Material\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Recycled HDPE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Membrane weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 900g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Geotextile\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Polypropylene, approx. 100g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Total weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 1,000g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Stud height\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 25mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Number of studs\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 400\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Colour\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Roll length\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 10m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Roll widths\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 1m or 2m (+100mm geotextile overlap)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Coverage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 10m² or 20m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Roll weights\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 10kg or 20kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Water-storage capacity\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 11l\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Water-drainage capacity\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 9.8l\/(s·m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Compressive strength\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 150kN\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Temperature resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e -30°C to +80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Fire resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Class E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Accreditation\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Tested and CE marked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eHow much water can UGR 25mm Membrane store?\u003c\/h4\u003e\n\u003cp\u003eIts 25mm cavities store approximately 11 litres per square metre; perforations allow excess water to drain beneath.\u003c\/p\u003e\n\u003ch4\u003eDoes the membrane include a filter layer?\u003c\/h4\u003e\n\u003cp\u003eYes. Both roll sizes have a polypropylene geotextile bonded to the upper surface.\u003c\/p\u003e\n\u003ch4\u003eWhich roll size should I choose?\u003c\/h4\u003e\n\u003cp\u003e1m x 10m (10m²) is easier to handle on smaller roofs; 2m x 10m (20m²) reduces joins on larger roofs.\u003c\/p\u003e\n\u003ch4\u003eWhich way up should UGR 25mm Membrane be installed?\u003c\/h4\u003e\n\u003cp\u003eBonded geotextile facing upwards towards the substrate.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed help comparing the drainage membranes?\u003c\/h3\u003e\n\u003cp\u003eNot sure whether the 25mm membrane’s 11l\/m² storage capacity is right for your planting, or whether a lower- or higher-capacity membrane would better suit the roof? Our in-house technical team can provide free advice on product selection, roof build-up and compatible supporting layers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"1m x 10m (10m²)","offer_id":54207509365079,"sku":"UGR25SDM10","price":130.5,"currency_code":"GBP","in_stock":false},{"title":"2m x 10m (20m²)","offer_id":54207509397847,"sku":"UGR25SDM20","price":232.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/PermaSEAL_PRO_25P_Main_Image_1000_x_1000.jpg?v=1788432467"},{"product_id":"40mm-storage-drainage-board-1m-x-2m","title":"UGR 40mm Storage \u0026 Drainage Board 1m x 2m","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eHigh-capacity drainage and water storage\u003c\/h3\u003e\n\u003cp\u003eUGR 40mm Storage \u0026amp; Drainage Board is a heavy-duty water-management layer designed primarily for intensive green roofs and hard landscaping applications.\u003c\/p\u003e\n\u003cp\u003eIts deep 40mm cavities retain around 15 litres of water per square metre, helping maintain moisture around the growing substrate and vegetation between periods of rainfall. Perforations within the membrane allow excess water to drain away, reducing the risk of the planting layers becoming saturated.\u003c\/p\u003e\n\u003cp\u003eThe combination of high water storage and strong drainage performance makes UGR 40mm Storage \u0026amp; Drainage Boards particularly useful for heavily planted roofs, long drainage runs and roofs with a low gradient.\u003c\/p\u003e\n\u003ch3\u003eBuilt for intensive planting and heavier loads\u003c\/h3\u003e\n\u003cp\u003eManufactured from 100% recycled high-density polyethylene, UGR 40mm Storage \u0026amp; Drainage Board has an approximate compressive strength of 200kN\/m² — equivalent to around 20 tonnes per square metre. This makes it suitable for a wide variety of soft and hard landscaping applications, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIntensive green roofs\u003c\/li\u003e\n\u003cli\u003eRoof gardens\u003c\/li\u003e\n\u003cli\u003eWildflower, plug and seed planting\u003c\/li\u003e\n\u003cli\u003eGrass, shrubs and medium-sized planting\u003c\/li\u003e\n\u003cli\u003eCommercial and residential roofs\u003c\/li\u003e\n\u003cli\u003eInverted warm roofs and cold roofs\u003c\/li\u003e\n\u003cli\u003eBalconies and terraces\u003c\/li\u003e\n\u003cli\u003eLandscaped areas above underground car parks\u003c\/li\u003e\n\u003cli\u003eGround-level landscaping above basement accommodation\u003c\/li\u003e\n\u003cli\u003eWalkable decks\u003c\/li\u003e\n\u003cli\u003eDrivable decks\u003c\/li\u003e\n\u003cli\u003ePaving and slab build-ups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts drainage capacity also allows it to accommodate large drainage lengths or low roof slopes within a correctly designed system.\u003c\/p\u003e\n\u003ch3\u003eWater storage for demanding planting schemes\u003c\/h3\u003e\n\u003cp\u003eIntensive green roofs generally use deeper growing substrates and support larger, more varied vegetation than lightweight extensive systems. UGR 40mm Storage \u0026amp; Drainage Boards help manage water within these deeper build-ups by:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRetaining useful rainfall within its 40mm cavities\u003c\/li\u003e\n\u003cli\u003eAllowing excess water to pass into the drainage space\u003c\/li\u003e\n\u003cli\u003eSupporting heavily planted areas during drier periods\u003c\/li\u003e\n\u003cli\u003eProviding approximately 3.78l\/(s·m) drainage capacity at a hydraulic gradient of 0.10\u003c\/li\u003e\n\u003cli\u003eWithstanding substantial loads from substrate, planting and compatible hard landscaping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA separate geotextile filter layer is required above UGR 40mm Boards when they are used beneath planting substrate. This stops soil and fine particles from entering and obstructing the storage cavities. Use the \u003ca href=\"\/products\/120g-green-roof-filter-layer-1-5m-x-100m\"\u003eUGR 120g Green Roof Filter Layer\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhere UGR 40mm Storage \u0026amp; Drainage Boards fit in the system\u003c\/h3\u003e\n\u003cp\u003eA typical intensive green roof build-up may include:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eStructural roof deck\u003c\/li\u003e\n\u003cli\u003ePrimary waterproofing layer\u003c\/li\u003e\n\u003cli\u003eRoot barrier\u003c\/li\u003e\n\u003cli\u003eProtection fleece\u003c\/li\u003e\n\u003cli\u003eUGR 40mm Storage \u0026amp; Drainage Board 1m x 2m\u003c\/li\u003e\n\u003cli\u003eSeparate geotextile filter layer\u003c\/li\u003e\n\u003cli\u003eIntensive green roof substrate\u003c\/li\u003e\n\u003cli\u003ePlanting or turf\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eFor dedicated root protection, install the \u003ca href=\"\/products\/green-roof-root-barrier\"\u003eUGR Green Roof Root Barrier\u003c\/a\u003e beneath the drainage membrane. A protection fleece may also be required to reduce the risk of light mechanical damage to the waterproofing and root barrier — see the \u003ca href=\"\/products\/green-roof-protection-fleece-300\"\u003eUGR Green Roof Protection Fleece 300\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstalling UGR 40mm Boards\u003c\/h3\u003e\n\u003cp\u003eThe application surface should have a gradient of at least 2%. Complete the horizontal waterproofing, root barrier and any other specified underlying layers before installing the slabs.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLay the 1m x 2m slabs horizontally with the cavity openings facing upwards.\u003c\/li\u003e\n\u003cli\u003ePosition adjoining slabs edge to edge using butt joints; overlapping is not normally required.\u003c\/li\u003e\n\u003cli\u003eCut slabs to fit using a suitable knife, taking care not to damage the waterproofing or other layers beneath.\u003c\/li\u003e\n\u003cli\u003eWhere additional protection is required at a joint, a compatible single-sided membrane tape may be applied over the connection.\u003c\/li\u003e\n\u003cli\u003eFor planted areas, install UGR 120g Green Roof Filter Layer over the completed surface.\u003c\/li\u003e\n\u003cli\u003eApply the specified intensive green roof substrate over the filter layer.\u003c\/li\u003e\n\u003cli\u003eComplete the system with the selected vegetation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe manageable slab size allows individual sections to be positioned and cut without handling a large roll.\u003c\/p\u003e\n\u003ch3\u003eWalkable and drivable applications\u003c\/h3\u003e\n\u003cp\u003eFor walkable areas without vegetation, a geotextile filter layer is not used. The specified base and bedding materials are instead applied directly onto the membrane and into the cavities before the paving or slabs are installed.\u003c\/p\u003e\n\u003cp\u003eDrivable applications require a suitable sub-base and bedding course between UGR 40mm Storage \u0026amp; Drainage Board and the finished pavement. The complete build-up, loading and drainage design must be appropriately specified for the intended use.\u003c\/p\u003e\n\u003ch3\u003eDurable and long-lasting\u003c\/h3\u003e\n\u003cp\u003eUGR 40mm Storage \u0026amp; Drainage Board is:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade from 100% recycled HDPE\u003c\/li\u003e\n\u003cli\u003eHighly resistant to water\u003c\/li\u003e\n\u003cli\u003eResistant to alkalis and saline solutions\u003c\/li\u003e\n\u003cli\u003eResistant to organic acids\u003c\/li\u003e\n\u003cli\u003eResistant to bacteria, fungi and other small organisms\u003c\/li\u003e\n\u003cli\u003eUnaffected by minerals\u003c\/li\u003e\n\u003cli\u003eSuitable for temperatures between -30°C and +80°C\u003c\/li\u003e\n\u003cli\u003eGuaranteed against deterioration for 30 years\u003c\/li\u003e\n\u003cli\u003eTested and CE marked to the relevant standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts stated life expectancy is equal to that of the structure under DIN 9001:2000.\u003c\/p\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eUGR 40mm Storage \u0026amp; Drainage Board is a deep, heavy-duty drainage layer intended mainly for intensive planting and compatible hard landscaping. For a lighter extensive green roof that does not require this level of water storage or load resistance, consider the \u003ca href=\"\/products\/20mm-storage-drainage-membrane-2m-x-10m\"\u003eUGR 20mm Storage \u0026amp; Drainage Membrane 2m x 10m\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eUGR 40mm Board is not a primary waterproofing membrane and must be installed above a suitable waterproofing system.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e100% recycled HDPE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eMembrane weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eApprox. 2,200g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eStud height\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eApprox. 40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eNumber of studs\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e164\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eColour\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eSlab dimensions\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e1m x 2m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eCoverage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e2m² per slab\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eCompressive strength\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eApprox. 200kN\/m² (~20 tonnes\/m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eWater-storage capacity\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eApprox. 15l\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eWater-drainage capacity (i=0.10)\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eApprox. 3.78l\/(s·m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eTemperature resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e-30°C to +80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eFire resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eClass E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eAccreditation\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eTested and CE marked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eHow much water do UGR 40mm Storage \u0026amp; Drainage Boards store?\u003c\/h4\u003e\n\u003cp\u003eIts 40mm cavities store approximately 15 litres per square metre.\u003c\/p\u003e\n\u003ch4\u003eDo UGR 40mm Boards include a filter layer?\u003c\/h4\u003e\n\u003cp\u003eNo. A separate geotextile filter layer is required above it when installed beneath substrate — use Filter Layer 120.\u003c\/p\u003e\n\u003ch4\u003eHow are the slabs joined?\u003c\/h4\u003e\n\u003cp\u003eSimple butt joints, edges alongside each other; overtape may be applied where extra joint protection is required.\u003c\/p\u003e\n\u003ch4\u003eCan UGR 40mm Boards be installed beneath paving?\u003c\/h4\u003e\n\u003cp\u003eYes, in compatible walkable and drivable build-ups. The cups must be filled and correct bedding or sub-base installed for the loading.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eFree advice for intensive green roof projects\u003c\/h3\u003e\n\u003cp\u003eChoosing the correct drainage layer is particularly important when planning deeper substrates, heavier planting or paved areas. Our in-house technical team can provide free, practical advice on whether UGR 40mm Storage \u0026amp; Drainage Boards are suitable and which root barrier, protection and filter layers your build-up may require.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":54207509791063,"sku":"UGR40SDB2","price":38.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/UGR_40mm_Storage_Drainage_Board_5.jpg?v=1788434444"},{"product_id":"60mm-storage-drainage-board-1m-x-2m","title":"UGR 60mm Storage \u0026 Drainage Board 1m x 2m","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eMaximum water storage for intensive green roofs\u003c\/h3\u003e\n\u003cp\u003eUGR 60mm Storage \u0026amp; Drainage Board 1m x 2m is a high-capacity water-management layer for demanding intensive green roof and hard landscaping projects.\u003c\/p\u003e\n\u003cp\u003eIts deep 60mm cavities store approximately 20 litres of water per square metre, helping maintain moisture around deeper growing substrates and heavily planted areas between periods of rainfall.\u003c\/p\u003e\n\u003cp\u003eThe membrane is also perforated, allowing excess water to pass into the drainage space below. This balances useful water retention with effective drainage, helping prevent the substrate and plant roots from becoming saturated.\u003c\/p\u003e\n\u003ch3\u003eDesigned for larger planting and complex landscaping\u003c\/h3\u003e\n\u003cp\u003eUGR 60mm Storage \u0026amp; Drainage Boards are specifically designed for intensive green roofs supporting larger shrubs and trees. Its substantial storage capacity also makes it suitable for areas intended to remain without irrigation for extended periods. Typical applications include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIntensive green roofs with large shrubs or trees\u003c\/li\u003e\n\u003cli\u003eHeavily planted commercial roof gardens\u003c\/li\u003e\n\u003cli\u003eResidential and commercial roofs\u003c\/li\u003e\n\u003cli\u003eChildren's playgrounds and recreational spaces\u003c\/li\u003e\n\u003cli\u003eBalconies and terraces\u003c\/li\u003e\n\u003cli\u003eInverted roofs\u003c\/li\u003e\n\u003cli\u003eLandscaped areas above underground car parks\u003c\/li\u003e\n\u003cli\u003eGround-level landscaping above basement accommodation\u003c\/li\u003e\n\u003cli\u003eWalkable decks\u003c\/li\u003e\n\u003cli\u003eDrivable decks\u003c\/li\u003e\n\u003cli\u003ePaving and slab build-ups\u003c\/li\u003e\n\u003cli\u003eOther hard landscaping designs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe membrane's high drainage capacity makes it suitable for long drainage runs and low roof slopes within a correctly specified system.\u003c\/p\u003e\n\u003ch3\u003eStrong enough for demanding build-ups\u003c\/h3\u003e\n\u003cp\u003eManufactured from 100% recycled high-density polyethylene, UGR 60mm Storage \u0026amp; Drainage Boards have an approximate compressive strength of 200kN\/m² — equivalent to around 20 tonnes per square metre. This provides the strength needed to support suitable intensive planting and compatible trafficked or paved areas.\u003c\/p\u003e\n\u003cp\u003eUGR 60mm Boards are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExtremely tough and durable\u003c\/li\u003e\n\u003cli\u003eResistant to water\u003c\/li\u003e\n\u003cli\u003eResistant to alkalis and saline solutions\u003c\/li\u003e\n\u003cli\u003eResistant to organic acids\u003c\/li\u003e\n\u003cli\u003eResistant to bacteria and fungi\u003c\/li\u003e\n\u003cli\u003eUnaffected by minerals\u003c\/li\u003e\n\u003cli\u003eSuitable for temperatures from -30°C to +80°C\u003c\/li\u003e\n\u003cli\u003eGuaranteed against deterioration for 30 years\u003c\/li\u003e\n\u003cli\u003eTested and CE marked to the relevant standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManaging water within an intensive green roof\u003c\/h3\u003e\n\u003cp\u003eUGR 60mm Storage \u0026amp; Drainage Boards perform two essential functions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater storage:\u003c\/strong\u003e Its 60mm cavities retain approximately 20l\/m² to support intensive planting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrainage:\u003c\/strong\u003e Perforations allow excess rainfall to pass into the drainage space beneath.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen the membrane is used beneath planting substrate, a separate geotextile filter layer must be installed above it. This prevents soil and fine particles from entering and obstructing the storage cavities. Use the \u003ca href=\"\/products\/120g-green-roof-filter-layer-1-5m-x-100m\"\u003eUGR 120g Green Roof Filter Layer 1.5m x 100m\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhere UGR 60mm Storage \u0026amp; Drainage Boards fit in the system\u003c\/h3\u003e\n\u003cp\u003eA typical intensive green roof build-up may include:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eStructural roof deck\u003c\/li\u003e\n\u003cli\u003ePrimary waterproofing layer\u003c\/li\u003e\n\u003cli\u003eRoot barrier\u003c\/li\u003e\n\u003cli\u003eProtection fleece\u003c\/li\u003e\n\u003cli\u003eUGR 60mm Storage \u0026amp; Drainage Boards\u003c\/li\u003e\n\u003cli\u003eSeparate geotextile filter layer\u003c\/li\u003e\n\u003cli\u003eIntensive green roof substrate\u003c\/li\u003e\n\u003cli\u003eShrubs, trees or other planting\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eFor dedicated root protection, install the \u003ca href=\"\/products\/green-roof-root-barrier\"\u003eUGR Green Roof Root Barrier\u003c\/a\u003e beneath the drainage membrane. A protection fleece may also be required to help protect the waterproofing and root barrier against light mechanical damage — see the \u003ca href=\"\/products\/green-roof-protection-fleece-300\"\u003eUGR Green Roof Protection Fleece 300\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstalling UGR 60mm Boards\u003c\/h3\u003e\n\u003cp\u003eThe application surface should have a gradient of at least 2%. Complete the horizontal waterproofing, root barrier and any other specified underlying layers before positioning the membrane.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLay the 1m x 2m slabs horizontally with the cavity openings facing upwards.\u003c\/li\u003e\n\u003cli\u003ePosition adjoining slabs edge to edge using simple butt joints.\u003c\/li\u003e\n\u003cli\u003eOverlapping is not normally required, although it can be used where necessary.\u003c\/li\u003e\n\u003cli\u003eCut slabs to the required shape with a suitable knife, taking care not to damage the waterproofing or other underlying layers.\u003c\/li\u003e\n\u003cli\u003eFor planted applications, install UGR 120g Green Roof Filter Layer across the completed surface.\u003c\/li\u003e\n\u003cli\u003eApply the specified intensive green roof substrate above the filter layer.\u003c\/li\u003e\n\u003cli\u003eComplete the system with the chosen planting.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe manageable slab format allows individual sections to be positioned and cut without handling a large roll.\u003c\/p\u003e\n\u003ch3\u003eWalkable and drivable applications\u003c\/h3\u003e\n\u003cp\u003eFor walkable areas without vegetation, a geotextile filter layer is not required. The specified base and bedding materials are applied directly onto the membrane and into its cavities before paving or slabs are installed.\u003c\/p\u003e\n\u003cp\u003eDrivable applications require a suitable sub-base and bedding course between UGR 60mm Storage \u0026amp; Drainage Boards and the finished pavement. The complete build-up, drainage and structural loading must be designed for the intended traffic and use.\u003c\/p\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eUGR 60mm Boards are intended for high-capacity intensive planting and demanding landscaping projects. Where the roof does not require 20l\/m² of water storage or support large shrubs and trees, the shallower \u003ca href=\"\/products\/40mm-storage-drainage-board-1m-x-2m\"\u003eUGR 40mm Storage \u0026amp; Drainage Board 1m x 2m\u003c\/a\u003e may provide a more appropriate solution.\u003c\/p\u003e\n\u003cp\u003eUGR 60mm Storage \u0026amp; Drainage Boards are not a primary waterproofing system and must be installed above a suitable waterproofing system.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Material\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 100% recycled HDPE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Stud height\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Membrane weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 2,500g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Number of studs\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 130\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Colour\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Slab dimensions\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 1m x 2m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Coverage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 2m² per slab\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Compressive strength\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 200kN\/m² (~20 tonnes\/m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Water-storage capacity\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 20l\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Water-drainage capacity (i=0.10)\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 3.86l\/(s·m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Temperature resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e -30°C to +80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Fire resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Class E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Accreditation\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Tested and CE marked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eHow much water do UGR 60mm Boards store?\u003c\/h4\u003e\n\u003cp\u003eIts 60mm cavities store approximately 20 litres per square metre, suiting deeper substrates and larger planting.\u003c\/p\u003e\n\u003ch4\u003eDo UGR 60mm Boards include a filter layer?\u003c\/h4\u003e\n\u003cp\u003eNo. A separate geotextile filter layer must be installed above it when used beneath substrate.\u003c\/p\u003e\n\u003ch4\u003eWhat is the difference between UGR 40mm Boards and UGR 60mm Boards?\u003c\/h4\u003e\n\u003cp\u003eUGR 60mm Storage \u0026amp; Drainage Boards have deeper 60mm cavities storing ~20l\/m², versus ~15l\/m² for the 40mm UGR Boards. It suits particularly demanding intensive roofs with large shrubs and trees.\u003c\/p\u003e\n\u003ch4\u003eCan UGR 60mm Boards be used beneath paving?\u003c\/h4\u003e\n\u003cp\u003eYes, in compatible walkable or drivable systems. The cavities must receive the specified base\/bedding and the system be designed for the loading.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eFree advice for complex green roof projects\u003c\/h3\u003e\n\u003cp\u003ePlanning a roof garden with deeper substrate, trees, recreational space or paved areas? Our in-house technical team can provide free, practical guidance on whether UGR 60mm Storage \u0026amp; Drainage Boards are appropriate and which waterproofing, protection and filter layers your build-up may require.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":54207510053207,"sku":"UGR60SDB2","price":41.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/inside_fw_1.jpg?v=1785811613"},{"product_id":"120g-green-roof-filter-layer-1-5m-x-100m","title":"UGR 120g Green Roof Filter Layer 1.5m x 100m","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eKeep your green roof drainage layer flowing freely\u003c\/h3\u003e\n\u003cp\u003eUGR 120g Green Roof Filter Layer 1.5m x 100m is a durable polypropylene geotextile installed between the drainage membrane and growing substrate in a green roof system.\u003c\/p\u003e\n\u003cp\u003eThe filter fabric allows water to pass through freely while preventing substrate fines, soil and other small particles from entering and clogging the drainage cavities below. This helps preserve the drainage performance of the system and protects the water-storage spaces within the membrane.\u003c\/p\u003e\n\u003cp\u003eIt is particularly suited for use above drainage and storage membranes that do not have their own bonded filter layer.\u003c\/p\u003e\n\u003ch3\u003eTough, permeable and easy to install\u003c\/h3\u003e\n\u003cp\u003eUGR 120g Green Roof Filter Layer combines high water permeability with the strength needed for use beneath green roof growing media. Key benefits include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh tear and puncture resistance\u003c\/li\u003e\n\u003cli\u003eTough and durable polypropylene construction\u003c\/li\u003e\n\u003cli\u003eWater permeability of 77l\/(m²·s)\u003c\/li\u003e\n\u003cli\u003eRecyclable material\u003c\/li\u003e\n\u003cli\u003eUV-stable construction\u003c\/li\u003e\n\u003cli\u003eConforms to GRO performance requirements for a filter layer\u003c\/li\u003e\n\u003cli\u003eLarge 1.5m x 100m roll covering 150m²\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts 80μm opening size helps filter fine particles while maintaining water flow and fast drainage through the roof build-up.\u003c\/p\u003e\n\u003ch3\u003eWhere the filter layer fits in the system\u003c\/h3\u003e\n\u003cp\u003eA typical intensive green roof build-up may include:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eStructural roof deck\u003c\/li\u003e\n\u003cli\u003ePrimary waterproofing layer\u003c\/li\u003e\n\u003cli\u003eRoot barrier\u003c\/li\u003e\n\u003cli\u003eProtection fleece\u003c\/li\u003e\n\u003cli\u003eGreen roof drainage and storage membrane\u003c\/li\u003e\n\u003cli\u003eUGR 120g Green Roof Filter Layer\u003c\/li\u003e\n\u003cli\u003eGrowing substrate\u003c\/li\u003e\n\u003cli\u003eVegetation\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eUGR 120g Green Roof Filter Layer is designed for use above products including the \u003ca href=\"\/products\/40mm-storage-drainage-board-1m-x-2m\"\u003eUGR 40mm\u003c\/a\u003e and \u003ca href=\"\/products\/60mm-storage-drainage-board-1m-x-2m\"\u003eUGR 60mm\u003c\/a\u003e green roof storage and drainage boards.\u003c\/p\u003e\n\u003ch3\u003eInstalling the green roof filter layer\u003c\/h3\u003e\n\u003cp\u003eInstall the filter fabric after the drainage membrane has been correctly positioned.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eRoll the filter layer out across the drainage membrane.\u003c\/li\u003e\n\u003cli\u003eCut the fabric to fit the roof layout where required.\u003c\/li\u003e\n\u003cli\u003eOverlap adjoining sections by at least 150mm.\u003c\/li\u003e\n\u003cli\u003eDo not take the filter layer across the top of drainage outlets.\u003c\/li\u003e\n\u003cli\u003eAt roof edges, turn the fabric upwards where needed to separate the growing substrate from a pebble or gravel border.\u003c\/li\u003e\n\u003cli\u003eBegin applying the growing substrate along the seams of the filter fabric.\u003c\/li\u003e\n\u003cli\u003eContinue adding the substrate while keeping the fabric taut and correctly positioned.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eApplying the growing medium along the seams first helps prevent the geotextile from moving or sinking into the cavities of the drainage membrane. Turning the filter layer upwards at perimeter details can also stop substrate fines from contaminating adjacent pebble borders.\u003c\/p\u003e\n\u003ch3\u003eAlso suitable for land drains\u003c\/h3\u003e\n\u003cp\u003eThe geotextile can also be used as a filtration layer around land drains in suitable external groundworks and waterproofing applications.\u003c\/p\u003e\n\u003cp\u003eIn this type of installation, the drainage pipe and surrounding free-draining stone are enclosed by the filter fabric. This helps stop soil fines from entering the aggregate and reducing the effectiveness of the drainage system.\u003c\/p\u003e\n\u003ch3\u003eDurability and exposure\u003c\/h3\u003e\n\u003cp\u003eThe product has a stated minimum durability of 25 years when used within the conditions specified in the technical data.\u003c\/p\u003e\n\u003cp\u003eTo achieve this stated durability, the fabric should be covered or backfilled within 14 days of installation. The durability information applies in natural soils with a pH between 4 and 9 and soil temperatures of no more than 25°C.\u003c\/p\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eUGR 120g Green Roof Filter Layer is not a drainage, water-storage or waterproofing membrane. It must be installed above an appropriate drainage layer, such as UGR 40mm or UGR 60mm Storage \u0026amp; Drainage Board, and should never be laid across drainage outlets.\u003c\/p\u003e\n\u003cp\u003eThe separate fabric is not normally required directly above the roll versions of UGR 20mm or UGR 25mm Storage \u0026amp; Drainage Membrane because those products already incorporate a bonded geotextile filter layer — see the \u003ca href=\"\/products\/20mm-storage-drainage-membrane-2m-x-10m\"\u003eUGR 20mm\u003c\/a\u003e and \u003ca href=\"\/products\/25mm-storage-drainage-membrane\"\u003eUGR 25mm\u003c\/a\u003e green roof storage and drainage membranes.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003ePolypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eColour\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eThickness\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e0.6–0.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eMaterial weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e120g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eRoll width\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e1.5m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eRoll length\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e100m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eCoverage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e150m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eMinimum joint overlap\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e150mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eTensile strength MD\/CMD\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e10.0\/10.0kN\/m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eStatic puncture resistance (CBR)\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e1.4kN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eOpening size\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e80μm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eWater permeability\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e77l\/(m²·s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eDurability\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eMinimum 25 years (specified conditions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eCompliance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eConforms to GRO filter-layer requirements\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eWhat does a green roof filter layer do?\u003c\/h4\u003e\n\u003cp\u003eIt lets water pass into the drainage membrane while stopping soil, substrate fines and other particles from blocking the drainage and storage cavities.\u003c\/p\u003e\n\u003ch4\u003eHow much should adjoining sections overlap?\u003c\/h4\u003e\n\u003cp\u003eAt least 150mm. Adding substrate along the seams first helps hold the fabric taut.\u003c\/p\u003e\n\u003ch4\u003eShould the filter fabric cover drainage outlets?\u003c\/h4\u003e\n\u003cp\u003eNo — do not take the filter layer over drainage outlets, as this could interfere with water leaving the roof.\u003c\/p\u003e\n\u003ch4\u003eDo I need this filter layer above UGR 20mm or UGR 25mm Storage \u0026amp; Drainage Membrane?\u003c\/h4\u003e\n\u003cp\u003eNo. The roll versions of UGR 20mm and UGR 25mm Storage \u0026amp; Drainage Membrane already include a bonded geotextile filter. This layer is for membranes like UGR 40mm Storage \u0026amp; Drainage Board and 60P that don't.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed help choosing the correct filter layer?\u003c\/h3\u003e\n\u003cp\u003eUnsure whether your drainage membrane already includes a bonded geotextile, or how to detail the fabric around outlets and roof edges? Our in-house technical team can provide free, practical guidance on the correct layers for your green roof system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":54207510282583,"sku":"UGRFL150","price":178.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/permaseal_geotextile_120_full_roll_shot_fw.jpg?v=1785811813"},{"product_id":"8mm-deck-wall-drainage-membrane","title":"UGR 8mm Deck \u0026 Wall Drainage Membrane","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eReliable drainage for extensive green roofs\u003c\/h3\u003e\n\u003cp\u003eUGR 8mm Deck \u0026amp; Wall Drainage Membrane is a tough, high-strength drainage layer designed to help excess water move safely through a green roof system.\u003c\/p\u003e\n\u003cp\u003eIts 8mm studded recycled HDPE profile creates a clear drainage cavity above the primary waterproofing. A high-quality polypropylene geotextile is permanently bonded to the upper face, filtering soil fines and growing medium while allowing water to drain freely.\u003c\/p\u003e\n\u003cp\u003eThis combined drainage and filtration design saves installation time because there is no need to lay a separate loose filter fabric directly above the membrane.\u003c\/p\u003e\n\u003ch3\u003eBonded geotextile for easier installation\u003c\/h3\u003e\n\u003cp\u003eThe integrated geotextile performs several useful functions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHelps stop soil and substrate fines blocking the drainage cavity\u003c\/li\u003e\n\u003cli\u003eAllows water to flow through quickly\u003c\/li\u003e\n\u003cli\u003ePrevents the filter fabric from slipping during installation\u003c\/li\u003e\n\u003cli\u003eReduces compression of the fabric into the studded profile\u003c\/li\u003e\n\u003cli\u003eRemoves the need for a separate loose filter layer\u003c\/li\u003e\n\u003cli\u003eHelps keep the green roof build-up stable and correctly layered\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWith a drainage capacity of approximately 2.24l\/(s·m), UGR 8mm Deck \u0026amp; Wall Drainage Membrane provides effective water movement without adding a dedicated water-storage layer.\u003c\/p\u003e\n\u003ch3\u003eSuitable applications\u003c\/h3\u003e\n\u003cp\u003eUGR 8mm Membrane can be used within:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExtensive green roofs\u003c\/li\u003e\n\u003cli\u003eFlat roofs and low-pitched roofs\u003c\/li\u003e\n\u003cli\u003eHouses and residential extensions\u003c\/li\u003e\n\u003cli\u003eSheds, garages and garden buildings\u003c\/li\u003e\n\u003cli\u003eConservatories\u003c\/li\u003e\n\u003cli\u003eLarger commercial roof projects\u003c\/li\u003e\n\u003cli\u003eSelected intensive green roof build-ups\u003c\/li\u003e\n\u003cli\u003eWalkable landscaping areas\u003c\/li\u003e\n\u003cli\u003eDrivable landscaping systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts approximate compressive strength of 250kN\/m² makes it suitable for build-ups where green roof planting and trafficable surfaces may be combined, provided that the full system is correctly designed for the anticipated loads.\u003c\/p\u003e\n\u003ch3\u003eAvailable sizes\u003c\/h3\u003e\n\u003cp\u003eChoose from two roll sizes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2m x 10m: covers 20m²\u003c\/li\u003e\n\u003cli\u003e2m x 20m: covers 40m²\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 20m² version may be more manageable for smaller roofs, DIY installations or sites with restricted access. The 40m² version reduces the number of roll changes and adjoining sections on larger areas.\u003c\/p\u003e\n\u003ch3\u003eStrong, durable and long-lasting\u003c\/h3\u003e\n\u003cp\u003eUGR 8mm Deck \u0026amp; Wall Drainage Membrane is designed to provide reliable performance throughout the life of the green roof system. The membrane is:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eResistant to water\u003c\/li\u003e\n\u003cli\u003eResistant to alkalis and saline solutions\u003c\/li\u003e\n\u003cli\u003eResistant to organic acids\u003c\/li\u003e\n\u003cli\u003eUnaffected by minerals\u003c\/li\u003e\n\u003cli\u003eResistant to bacteria, fungi and other small organisms\u003c\/li\u003e\n\u003cli\u003eChemically resistant\u003c\/li\u003e\n\u003cli\u003eSuitable for temperatures between -30°C and +80°C\u003c\/li\u003e\n\u003cli\u003eGuaranteed against deterioration for 30 years\u003c\/li\u003e\n\u003cli\u003eTested and CE marked to the relevant standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere UGR 8mm Membrane fits in the system\u003c\/h3\u003e\n\u003cp\u003eA typical extensive green roof build-up may include:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eStructural roof deck\u003c\/li\u003e\n\u003cli\u003ePrimary waterproofing layer\u003c\/li\u003e\n\u003cli\u003eRoot barrier, where required\u003c\/li\u003e\n\u003cli\u003eProtection fleece, where required\u003c\/li\u003e\n\u003cli\u003eUGR 8mm Deck \u0026amp; Wall Drainage Membrane\u003c\/li\u003e\n\u003cli\u003eBonded geotextile filter layer\u003c\/li\u003e\n\u003cli\u003eExtensive green roof substrate\u003c\/li\u003e\n\u003cli\u003eSedum, grasses, mosses or other suitable planting\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eFor dedicated root protection, install the \u003ca href=\"\/products\/green-roof-root-barrier\"\u003eUGR Green Roof Root Barrier\u003c\/a\u003e beneath the drainage membrane. A protective fleece can also help reduce the risk of light mechanical damage to the waterproofing and root barrier — see the \u003ca href=\"\/products\/green-roof-protection-fleece-300\"\u003eUGR Green Roof Protection Fleece 300\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstalling UGR 8mm Membrane\u003c\/h3\u003e\n\u003cp\u003eThe application surface should have a gradient of at least 2%. Complete the horizontal waterproofing and install any specified root barrier or protection fleece before laying the membrane.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eRoll UGR 8mm Deck \u0026amp; Wall Drainage Membrane out over the prepared surface with the bonded geotextile facing upwards.\u003c\/li\u003e\n\u003cli\u003eCut the dimpled membrane to the required length, taking care not to damage the waterproofing or other layers beneath.\u003c\/li\u003e\n\u003cli\u003eOverlap adjoining rolls by approximately 100mm.\u003c\/li\u003e\n\u003cli\u003eLift the loose geotextile edge and position it over the adjoining section.\u003c\/li\u003e\n\u003cli\u003eWhere additional joint protection is required, seal the connection using a compatible jointing tape or sealant.\u003c\/li\u003e\n\u003cli\u003eOnce installed, the membrane can immediately receive the specified extensive green roof substrate or compatible paving build-up.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe bonded geotextile remains on the upper face beneath green roof substrate.\u003c\/p\u003e\n\u003ch3\u003eWalkable and drivable applications\u003c\/h3\u003e\n\u003cp\u003eUGR 8mm Membrane can also form part of compatible walkable and drivable landscaping systems.\u003c\/p\u003e\n\u003cp\u003eFor walkable areas, a suitable bedding course of sand, gravel or chippings is installed between the membrane and the finished paving.\u003c\/p\u003e\n\u003cp\u003eDrivable applications require a properly specified sub-base and bedding course between UGR 8mm Membrane and the finished pavement. Structural loading, drainage and the complete system build-up must be designed for the intended traffic.\u003c\/p\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eUGR 8mm Deck \u0026amp; Wall Drainage Membrane is not suitable for inverted warm roof applications. For an inverted warm roof or a project requiring meaningful water storage as well as drainage, consider the \u003ca href=\"\/products\/20mm-storage-drainage-membrane-2m-x-10m\"\u003eUGR 20mm\u003c\/a\u003e or \u003ca href=\"\/products\/25mm-storage-drainage-membrane\"\u003eUGR 25mm\u003c\/a\u003e Storage \u0026amp; Drainage Membranes.\u003c\/p\u003e\n\u003cp\u003eUGR 8mm Membrane is also not a primary waterproofing membrane and must be installed above a suitable waterproofing system.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eRecycled HDPE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eGeotextile\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003ePolypropylene, approx. 100g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eMembrane weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eApprox. 550g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eTotal weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eApprox. 650g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eStud height\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eApprox. 8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eNumber of studs\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e1,710\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eColour\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eRoll width\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e2m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eRoll lengths\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e10m or 20m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eCoverage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e20m² or 40m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eCompressive strength\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eApprox. 250kN\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eWater-drainage capacity\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eApprox. 2.24l\/(s·m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eTemperature resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e-30°C to +80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eFire resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eClass E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eAccreditation\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eTested and CE marked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eDoes UGR 8mm Membrane store water?\u003c\/h4\u003e\n\u003cp\u003eIt primarily provides drainage and filtration rather than dedicated storage. For water retention, consider UGR 20mm or UGR 25mm Storage \u0026amp; Drainage Membrane.\u003c\/p\u003e\n\u003ch4\u003eDoes it need a separate filter fabric?\u003c\/h4\u003e\n\u003cp\u003eNo. A polypropylene geotextile is permanently bonded to its upper surface.\u003c\/p\u003e\n\u003ch4\u003eWhich way up should the membrane be installed?\u003c\/h4\u003e\n\u003cp\u003eBonded geotextile facing upwards towards the substrate or landscaping build-up.\u003c\/p\u003e\n\u003ch4\u003eCan UGR 8mm Membrane be used on an inverted warm roof?\u003c\/h4\u003e\n\u003cp\u003eNo. UGR 20mm or UGR 25mm Storage \u0026amp; Drainage Membrane may be more appropriate, subject to the overall specification.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed help selecting the right drainage membrane?\u003c\/h3\u003e\n\u003cp\u003eUnsure whether your project needs straightforward drainage or a membrane that also stores water for the vegetation? Our in-house technical team can provide free, practical advice on choosing between UGR 8mm Membrane and the higher-capacity drainage and storage membranes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"2m x 10m (20m²)","offer_id":54207510544727,"sku":"UGR8DWDM20","price":143.25,"currency_code":"GBP","in_stock":true},{"title":"2m x 20m (40m²)","offer_id":54207510577495,"sku":"UGR8DWDM40","price":243.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/PermaSEAL_PRO_8_Main_Image_1000_x_1000.jpg?v=1788432256"},{"product_id":"11mm-deck-drainage-membrane-2m-x-15m","title":"UGR 11mm Deck Drainage Membrane 2m x 15m","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eHeavy-duty drainage for green roofs and podium decks\u003c\/h3\u003e\n\u003cp\u003eUGR 11mm Deck Drainage Membrane is a high-performance protection and drainage membrane for intensive green roofs, podium decks and other heavily loaded landscaping applications.\u003c\/p\u003e\n\u003cp\u003eThe two-layer product combines an impermeable 11mm HDPE drainage membrane with a high-quality polypropylene geotextile permanently bonded to its upper surface. Water passes through the filter fabric and into the studded drainage cavity, allowing it to move quickly across the surface while helping prevent soil and other particles from obstructing the drainage path.\u003c\/p\u003e\n\u003cp\u003eWith a compressive strength of over 500kN\/m², it is particularly well suited to projects where deeper substrates, trees and other heavy vegetation sit alongside paved or trafficked areas.\u003c\/p\u003e\n\u003ch3\u003eDrainage and protection in one membrane\u003c\/h3\u003e\n\u003cp\u003eUGR 11mm Deck Drainage Membrane performs two important functions within the roof build-up:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast surface drainage:\u003c\/strong\u003e The 11mm cavity provides a clear route for water to drain away.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproofing protection:\u003c\/strong\u003e The strong membrane helps protect the primary waterproofing against mechanical damage and thermal stress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts bonded geotextile also:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFilters soil fines and other particles\u003c\/li\u003e\n\u003cli\u003eHelps prevent siltation of the drainage cavity\u003c\/li\u003e\n\u003cli\u003eResists slipping and compression under increasing loads\u003c\/li\u003e\n\u003cli\u003eRemoves the need for a separate loose filter fabric directly above the membrane\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe membrane can provide up to approximately 3.15l\/(s·m) of drainage capacity.\u003c\/p\u003e\n\u003ch3\u003eDesigned for high loading and traffic\u003c\/h3\u003e\n\u003cp\u003eUGR 11mm Deck Drainage Membrane has a specially reinforced and grooved stud profile, with approximately 4,000 studs per square metre.\u003c\/p\u003e\n\u003cp\u003eThe high number of studs and smooth reverse surface distribute loads across the underlying waterproofing. With a correctly specified base and sub-base above it, the membrane can form part of systems supporting heavy vehicles and heavily landscaped intensive green roofs. Suitable applications include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIntensive and extensive flat green roofs\u003c\/li\u003e\n\u003cli\u003ePodium decks\u003c\/li\u003e\n\u003cli\u003eBuried roofs\u003c\/li\u003e\n\u003cli\u003eBalconies and terraces\u003c\/li\u003e\n\u003cli\u003eRoof gardens with trees and deep substrates\u003c\/li\u003e\n\u003cli\u003eLandscaped areas beside vehicle routes\u003c\/li\u003e\n\u003cli\u003eWalkable slabs and paving\u003c\/li\u003e\n\u003cli\u003eDrivable pavements\u003c\/li\u003e\n\u003cli\u003eRecreational spaces and public landscaped areas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is especially useful where planted and paved zones meet, as the same membrane can continue beneath both types of build-up.\u003c\/p\u003e\n\u003ch3\u003eInnovative interlocking joints\u003c\/h3\u003e\n\u003cp\u003eThe studs along the outer rows have specially designed indentations. When adjoining sheets overlap, a row of studs securely interlocks with the neighbouring membrane. This push-button connection:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHelps prevent movement between adjoining sheets\u003c\/li\u003e\n\u003cli\u003eMakes alignment easier\u003c\/li\u003e\n\u003cli\u003eSupports quicker installation\u003c\/li\u003e\n\u003cli\u003eDoes not depend on dry weather in the way that some taped joints do\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatible jointing tape can still be installed between the sheets where a fully sealed connection is required.\u003c\/p\u003e\n\u003ch3\u003eImpact sound reduction\u003c\/h3\u003e\n\u003cp\u003eUGR 11mm Deck Drainage Membrane has been tested to BS EN ISO 10140 and can provide impact sound reduction of up to 34dB within suitable insulated flat roof structures.\u003c\/p\u003e\n\u003cp\u003eThis may provide an additional benefit for balconies, terraces, podiums and other areas exposed to regular foot traffic.\u003c\/p\u003e\n\u003ch3\u003eWhere UGR 11mm Deck Drainage Membrane fits in the system\u003c\/h3\u003e\n\u003cp\u003eA typical horizontal build-up may include:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eStructural roof deck\u003c\/li\u003e\n\u003cli\u003eVapour-control and insulation layers, where specified\u003c\/li\u003e\n\u003cli\u003ePrimary waterproofing\u003c\/li\u003e\n\u003cli\u003eRoot barrier, unless the waterproofing is root resistant\u003c\/li\u003e\n\u003cli\u003eUGR 11mm Deck Drainage Membrane 2m x 15m\u003c\/li\u003e\n\u003cli\u003eGreen roof substrate, base material or landscaping build-up\u003c\/li\u003e\n\u003cli\u003eVegetation, paving or another suitable finish\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWhere separate root protection is required, install the \u003ca href=\"\/products\/green-roof-root-barrier\"\u003eUGR Green Roof Root Barrier\u003c\/a\u003e beneath UGR 11mm Deck Drainage Membrane.\u003c\/p\u003e\n\u003ch3\u003eInstalling UGR 11mm Deck Drainage Membrane horizontally\u003c\/h3\u003e\n\u003cp\u003eThe surface of a large flat roof or deck should have a gradient of at least 2%. Complete the primary waterproofing and any required root-protection layer before installing the membrane.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eUnroll UGR 11mm Deck Drainage Membrane across the waterproofed surface with the bonded geotextile facing upwards.\u003c\/li\u003e\n\u003cli\u003ePull back the geotextile beside the flange of the preceding sheet.\u003c\/li\u003e\n\u003cli\u003ePosition the adjoining roll so the specially shaped outer studs overlap and interlock.\u003c\/li\u003e\n\u003cli\u003eApply compatible jointing tape between the sheets where a completely sealed connection is required.\u003c\/li\u003e\n\u003cli\u003eWhere the roll needs to be extended lengthways, place the next section beneath the preceding membrane with a 200mm overlap.\u003c\/li\u003e\n\u003cli\u003eCut the membrane to fit without damaging the waterproofing beneath.\u003c\/li\u003e\n\u003cli\u003eTurn the membrane up adjoining walls or parapets by at least 150mm, or to the upper edge of the finished fill.\u003c\/li\u003e\n\u003cli\u003eProtect or cap any exposed vertical edge with a suitable sealing detail.\u003c\/li\u003e\n\u003cli\u003eComplete the build-up with the specified green roof substrate, base material or paving system.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eA single 2m x 15m roll covers 30m². Once the complete deck has been covered, materials may be moved across it by wheelbarrow. Wheeled loaders are only permitted after at least 200mm of suitable base material has been installed.\u003c\/p\u003e\n\u003ch3\u003eLong-lasting, resistant construction\u003c\/h3\u003e\n\u003cp\u003eUGR 11mm Deck Drainage Membrane is:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWaterproof and vapour resistant\u003c\/li\u003e\n\u003cli\u003eResistant to salts\u003c\/li\u003e\n\u003cli\u003eRot resistant\u003c\/li\u003e\n\u003cli\u003eResistant to contaminants and chemicals\u003c\/li\u003e\n\u003cli\u003eSuitable for temperatures between -30°C and +80°C\u003c\/li\u003e\n\u003cli\u003eSafe for contact with drinking water\u003c\/li\u003e\n\u003cli\u003eTested and CE marked to the relevant standard\u003c\/li\u003e\n\u003cli\u003eCompliant with BS EN 13252\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eUGR 11mm Deck Drainage Membrane is a protection and drainage membrane, not a primary waterproofing or dedicated water-storage layer. It must be installed above a suitable waterproofing system, with a root barrier where the waterproofing itself is not root resistant.\u003c\/p\u003e\n\u003cp\u003eWhere retaining water for intensive planting is the main requirement rather than supporting exceptionally heavy loads, consider the \u003ca href=\"\/products\/40mm-storage-drainage-board-1m-x-2m\"\u003eUGR 40mm\u003c\/a\u003e or \u003ca href=\"\/products\/60mm-storage-drainage-board-1m-x-2m\"\u003eUGR 60mm Storage \u0026amp; Drainage Board 1m x 2m\u003c\/a\u003e green roof solutions.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 48.4796%;\"\u003e Membrane material\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 51.6073%;\"\u003e Virgin HDPE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 48.4796%;\"\u003e Geotextile\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 51.6073%;\"\u003e Polypropylene Typar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 48.4796%;\"\u003e Stud height\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 51.6073%;\"\u003e 11mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 48.4796%;\"\u003e Total weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 51.6073%;\"\u003e Over 700g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 48.4796%;\"\u003e Number of studs\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 51.6073%;\"\u003e Approx. 4,000\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 48.4796%;\"\u003e Colour\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 51.6073%;\"\u003e Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 48.4796%;\"\u003e Roll width\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 51.6073%;\"\u003e 2m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 48.4796%;\"\u003e Roll length\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 51.6073%;\"\u003e 15m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 48.4796%;\"\u003e Coverage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 51.6073%;\"\u003e 30m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 48.4796%;\"\u003e Compressive strength\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 51.6073%;\"\u003e Over 500kN\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 48.4796%;\"\u003e Water-drainage capacity\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 51.6073%;\"\u003e Up to approx. 3.15l\/(s·m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 48.4796%;\"\u003e Impact sound reduction\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 51.6073%;\"\u003e Up to 34dB (BS EN ISO 10140)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 48.4796%;\"\u003e Temperature resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 51.6073%;\"\u003e -30°C to +80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 48.4796%;\"\u003e Compliance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 51.6073%;\"\u003e BS EN 13252\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 48.4796%;\"\u003e Accreditation\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 51.6073%;\"\u003e Tested and CE marked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eWhat is UGR 11mm Deck Drainage Membrane used for?\u003c\/h4\u003e\n\u003cp\u003eFast drainage and mechanical protection above waterproofing — intensive green roofs, podium decks, terraces, balconies and walkable or drivable landscaping.\u003c\/p\u003e\n\u003ch4\u003eDoes UGR 11mm Deck Drainage Membrane include a filter layer?\u003c\/h4\u003e\n\u003cp\u003eYes. A polypropylene geotextile is bonded to the upper surface.\u003c\/p\u003e\n\u003ch4\u003eHow are adjoining rolls connected?\u003c\/h4\u003e\n\u003cp\u003eThe shaped outer-row studs overlap and interlock; compatible jointing tape can be added for a fully sealed joint.\u003c\/p\u003e\n\u003ch4\u003eDoes the membrane store water for plants?\u003c\/h4\u003e\n\u003cp\u003eNo. Its main functions are drainage and protection. For water retention, consider UGR 40mm\/60mm Storage \u0026amp; Drainage Board.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eFree advice for heavily loaded green roof projects\u003c\/h3\u003e\n\u003cp\u003eCombining trees, deep growing media and vehicle or pedestrian traffic requires careful consideration of the complete roof build-up. Our in-house technical team can provide free guidance on whether UGR 11mm Deck Drainage Membrane is suitable and how it should work with your waterproofing, root protection and finished landscaping.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Single Unit","offer_id":54767629533527,"sku":"UGR11DDM30","price":267.25,"currency_code":"GBP","in_stock":true},{"title":"6-Roll Pack","offer_id":54767629566295,"sku":"UGR11DDM30P","price":1108.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/Glossy_black_fluted_drainage_membrane_New_Fw.jpg?v=1791560128"},{"product_id":"green-roof-edge-trim","title":"UGR Aluminium Green Roof Edge Trim – 1m","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eCreate a neat, free-draining green roof perimeter\u003c\/h3\u003e\n\u003cp\u003eUGR Aluminium Green Roof Edge Trim provides a tidy boundary between the planted area, pebbles and open edge of a green roof.\u003c\/p\u003e\n\u003cp\u003eThe perforated aluminium profile helps retain loose materials while allowing water to drain freely through its 13mm holes. It can be positioned around the perimeter of a flat or low-pitched green roof, or used internally to separate different materials within the landscaping build-up.\u003c\/p\u003e\n\u003cp\u003eSupplied in manageable one-metre lengths, the trim is straightforward to position, cut and connect. It is well suited to smaller domestic green roofs as well as larger projects where multiple lengths can be joined together.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eWhere to use the edge trim\u003c\/h3\u003e\n\u003cp\u003eUGR Aluminium Green Roof Edge Trim can be used as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA perimeter restraint for green roof growing substrate\u003c\/li\u003e\n\u003cli\u003eA separator between substrate and a strip of pebbles\u003c\/li\u003e\n\u003cli\u003eA water-permeable edge at the eaves of suitable roofs\u003c\/li\u003e\n\u003cli\u003eA boundary between different landscaping materials\u003c\/li\u003e\n\u003cli\u003eA neat finish around domestic or commercial green roof areas\u003c\/li\u003e\n\u003cli\u003eAn edging profile within suitable garden landscaping projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe trim is suitable for flat and low-pitched roofs with a maximum pitch of 5° when used as a water-permeable eaves upstand.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eDesigned for effective drainage\u003c\/h3\u003e\n\u003cp\u003eWater needs to move freely through the perimeter of a green roof rather than becoming trapped behind a solid retaining edge.\u003c\/p\u003e\n\u003cp\u003eThe 13mm holes allow excess water to pass through the aluminium trim while helping contain the growing substrate and pebbles. A strip of pebbles beside the trim can also help keep vegetation, roots and loose growing medium away from the drainage openings. See \u003ca href=\"\/products\/green-roof-border-pebbles\"\u003eUGR Pebbles\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eA practical modular edging system\u003c\/h3\u003e\n\u003cp\u003eThe one-metre lengths form part of a simple modular system that can be adapted to suit the shape and dimensions of the roof.\u003c\/p\u003e\n\u003cp\u003eStraight sections can be joined using the compatible \u003ca href=\"\/products\/green-roof-edge-trim-connector\"\u003eUGR Green Roof Edge Trim Connector\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003ePre-formed corners can be used to create consistent 90° perimeter details without cutting and shaping each corner by hand — the \u003ca href=\"\/products\/green-roof-edge-trim-internal-corner\"\u003eUGR Green Roof Edge Trim Internal Corner\u003c\/a\u003e and \u003ca href=\"\/products\/green-roof-edge-trim-external-corner\"\u003eUGR Green Roof Edge Trim External Corner\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eWhere a different angle is required, the straight trim can be cut with suitable tin snips and carefully formed to match the roof layout.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eInstalling the edge trim\u003c\/h3\u003e\n\u003cp\u003ePlan the perimeter and calculate the number of one-metre lengths, connectors and corners required before starting installation.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ePosition the trim around the edge of the green roof or along the required separation line.\u003c\/li\u003e\n\u003cli\u003eArrange the trim so the perforated face allows water to drain from the planted area.\u003c\/li\u003e\n\u003cli\u003eJoin adjoining straight lengths using a compatible edge trim connector.\u003c\/li\u003e\n\u003cli\u003eUse the pre-formed internal or external corners at suitable 90° changes in direction.\u003c\/li\u003e\n\u003cli\u003eCut and form straight lengths with tin snips where a non-standard angle is required.\u003c\/li\u003e\n\u003cli\u003eWhere additional resistance to movement is needed, apply small strips of compatible membrane adhesive across the base at approximately 300mm intervals.\u003c\/li\u003e\n\u003cli\u003ePlace the pebbles over the base of the trim and complete the adjoining substrate or landscaping areas.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eFor bonding the trim to a suitable waterproofing surface, use \u003ca href=\"\/products\/high-strength-membrane-adhesive-310ml-cartridge\"\u003eHigh Strength Membrane Adhesive - 310ml Cartridge\u003c\/a\u003e. Always confirm that the adhesive is compatible with the waterproofing system beneath it before application.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eThis edge trim is not suitable as a structurally effective gravel or substrate retainer on roofs pitched above 5°. Steeper green roofs require a correctly designed restraint system suited to the roof angle and expected loading.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Material\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Length\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 1m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Drainage-hole diameter\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 13mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Profile\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Folded four times\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Drainage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Water permeable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Suitable roof types\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Flat and low-pitched roofs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Max roof pitch (eaves-edge use)\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 5°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Compatible components\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Connectors, internal and external corners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eWhat is green roof edge trim used for?\u003c\/h4\u003e\n\u003cp\u003eA neat, water-permeable boundary that helps contain loose materials such as substrate and pebbles.\u003c\/p\u003e\n\u003ch4\u003eHow are two lengths of edge trim joined?\u003c\/h4\u003e\n\u003cp\u003ePush the ends of both 1m lengths into a compatible connector for a longitudinal joint.\u003c\/p\u003e\n\u003ch4\u003eCan the trim be cut to create different angles?\u003c\/h4\u003e\n\u003cp\u003eYes. Where a pre-formed 90° corner is unsuitable, cut with tin snips and form to the required angle.\u003c\/p\u003e\n\u003ch4\u003eCan I use this edge trim on a pitched green roof?\u003c\/h4\u003e\n\u003cp\u003eAs a water-permeable upstand on flat and low-pitched roofs up to 5°. It must not be relied on as a structural retainer above 5°.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed help planning the perimeter?\u003c\/h3\u003e\n\u003cp\u003eUnsure how many lengths, connectors and corners your roof will require, or how the trim should meet the pebble and substrate areas? Our in-house technical team can provide free, practical guidance on planning the perimeter of your green roof.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":54207511134551,"sku":"UGRET1","price":20.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/aluminium_edge_trim_fw.jpg?v=1785665829"},{"product_id":"green-roof-edge-trim-internal-corner","title":"UGR Green Roof Edge Trim Internal Corner","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eCreate neat internal corners around your green roof\u003c\/h3\u003e\n\u003cp\u003eUGR Green Roof Edge Trim Internal Corner provides a simple, reliable way to continue an aluminium edging system around an inward-facing 90° corner.\u003c\/p\u003e\n\u003cp\u003eThe pre-formed aluminium component joins two straight sections of edge trim, helping create a neat and consistent perimeter around the green roof build-up.\u003c\/p\u003e\n\u003cp\u003eIt removes the need to cut and manually shape a corner from straight trim, saving installation time and helping achieve a more uniform finish.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eWhat is an internal corner?\u003c\/h3\u003e\n\u003cp\u003eAn internal corner is used where the edging turns around an inward-facing part of the roof perimeter, creating an inside angle. It is suitable for details such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRecessed sections of a roof perimeter\u003c\/li\u003e\n\u003cli\u003eInward-facing returns\u003c\/li\u003e\n\u003cli\u003eChanges in direction around internal roof features\u003c\/li\u003e\n\u003cli\u003eLandscaping layouts incorporating 90° inside corners\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor an outward-facing perimeter corner, use the \u003ca href=\"\/products\/green-roof-edge-trim-external-corner\"\u003eUGR Green Roof Edge Trim External Corner\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePart of the UGR edging system\u003c\/h3\u003e\n\u003cp\u003eThe internal corner is designed to work with the straight aluminium edge trim and compatible connectors — the \u003ca href=\"\/products\/green-roof-edge-trim\"\u003eUGR Aluminium Green Roof Edge Trim – 1m\u003c\/a\u003e and the \u003ca href=\"\/products\/green-roof-edge-trim-connector\"\u003eUGR Green Roof Edge Trim Connector\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eTogether, these components create a modular edging system that can be adapted to the shape and dimensions of the roof.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eInstalling the internal corner\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePosition the internal corner at the required inward-facing 90° change in direction.\u003c\/li\u003e\n\u003cli\u003eAlign a straight edge-trim length with each side of the corner.\u003c\/li\u003e\n\u003cli\u003eJoin the corner piece to the straight trims using compatible edge-trim connectors.\u003c\/li\u003e\n\u003cli\u003eCheck that the trim and corner are securely seated and correctly aligned.\u003c\/li\u003e\n\u003cli\u003eContinue installing the edging around the remaining perimeter.\u003c\/li\u003e\n\u003cli\u003eComplete the adjoining pebble and growing-substrate areas as specified for the green roof system.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eThis component is specifically formed for inward-facing 90° corners. It should not be used for outward-facing perimeter corners or as a substitute for a straight connector.\u003c\/p\u003e\n\u003cp\u003eFor outside corners, use the corresponding \u003ca href=\"\/products\/green-roof-edge-trim-external-corner\"\u003eUGR Green Roof Edge Trim External Corner\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 31.2772%;\"\u003e Product type\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 68.8097%;\"\u003e Pre-formed edge-trim corner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 31.2772%;\"\u003e Corner type\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 68.8097%;\"\u003e Internal (inside) corner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 31.2772%;\"\u003e Angle\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 68.8097%;\"\u003e 90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 31.2772%;\"\u003e Material\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 68.8097%;\"\u003e Aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 31.2772%;\"\u003e Installation\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 68.8097%;\"\u003e Joined to straight trims via connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 31.2772%;\"\u003e Compatible trim\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 68.8097%;\"\u003e UGR Aluminium Green Roof Edge Trim – 1m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eWhat is an internal edge-trim corner?\u003c\/h4\u003e\n\u003cp\u003eA pre-formed 90° component for where the edging turns around an inward-facing or recessed perimeter detail.\u003c\/p\u003e\n\u003ch4\u003eHow does the corner connect to the straight trim?\u003c\/h4\u003e\n\u003cp\u003eUse compatible edge-trim connectors to join it to the adjoining 1m straight lengths.\u003c\/p\u003e\n\u003ch4\u003eCan I use this for an outside corner?\u003c\/h4\u003e\n\u003cp\u003eNo — use the external version for outward-facing details.\u003c\/p\u003e\n\u003ch4\u003eWhy use a pre-formed corner?\u003c\/h4\u003e\n\u003cp\u003eIt avoids cutting and forming a 90° angle by hand, for quicker installation and a more consistent finish.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed help planning your edging layout?\u003c\/h3\u003e\n\u003cp\u003eNot sure whether a roof detail requires an internal or external corner, or how many edging components your project needs? Our in-house technical team can provide free, practical advice on planning the complete perimeter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":54207512936791,"sku":"UGRETIC","price":27.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/green_roof_edge_trim_internal_corner_fw.jpg?v=1785665843"},{"product_id":"green-roof-edge-trim-external-corner","title":"UGR Green Roof Edge Trim External Corner","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eCreate neat outside corners around your green roof\u003c\/h3\u003e\n\u003cp\u003eUGR Green Roof Edge Trim External Corner provides a straightforward way to continue an aluminium edging system around an outward-facing 90° corner.\u003c\/p\u003e\n\u003cp\u003eThis robust, pre-formed aluminium component joins two straight sections of edge trim, creating a neat and reliable outside corner around the green roof perimeter.\u003c\/p\u003e\n\u003cp\u003eUsing a ready-formed corner avoids cutting and shaping straight lengths by hand, helping reduce installation time and create a more consistent finish.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eWhat is an external corner?\u003c\/h3\u003e\n\u003cp\u003eAn external corner is used where the edging turns around an outward-facing part of the roof perimeter. Typical uses include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOutside corners around a green roof\u003c\/li\u003e\n\u003cli\u003eOutward-facing perimeter upstands\u003c\/li\u003e\n\u003cli\u003eProjecting sections of a roof layout\u003c\/li\u003e\n\u003cli\u003eLandscaping boundaries incorporating 90° outside corners\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor an inward-facing or recessed perimeter detail, use the \u003ca href=\"\/products\/green-roof-edge-trim-internal-corner\"\u003eUGR Green Roof Edge Trim Internal Corner\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003ePart of the UGR edging system\u003c\/h3\u003e\n\u003cp\u003eThe external corner is designed to work with the straight aluminium edge trim and compatible connectors — the \u003ca href=\"\/products\/green-roof-edge-trim\"\u003eUGR Aluminium Green Roof Edge Trim – 1m\u003c\/a\u003e and the \u003ca href=\"\/products\/green-roof-edge-trim-connector\"\u003eUGR Green Roof Edge Trim Connector\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eTogether, these components create a modular edging system that can be adapted to the shape and dimensions of the green roof.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eInstalling the external corner\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePosition the external corner at the required outward-facing 90° change in direction.\u003c\/li\u003e\n\u003cli\u003eAlign a straight edge-trim length with each side of the corner.\u003c\/li\u003e\n\u003cli\u003eJoin the corner piece to the straight trims using compatible edge-trim connectors.\u003c\/li\u003e\n\u003cli\u003eCheck that each component is seated securely and correctly aligned.\u003c\/li\u003e\n\u003cli\u003eContinue installing the edging around the remaining perimeter.\u003c\/li\u003e\n\u003cli\u003eComplete the adjoining pebble and growing-substrate areas in accordance with the green roof design.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eThis component is specifically formed for outward-facing 90° corners. It should not be used for inward-facing perimeter details or as a substitute for a straight connector.\u003c\/p\u003e\n\u003cp\u003eFor inside corners, use the \u003ca href=\"\/products\/green-roof-edge-trim-internal-corner\"\u003eUGR Green Roof Edge Trim Internal Corner\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eProduct type\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003ePre-formed edge-trim corner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eCorner type\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eExternal (outside) corner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eAngle\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eAluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eInstallation\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eJoined to straight trims via connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eCompatible trim\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eUGR Aluminium Green Roof Edge Trim – 1m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eWhat is an external edge-trim corner?\u003c\/h4\u003e\n\u003cp\u003eA pre-formed 90° component for where the edging turns around an outward-facing perimeter detail.\u003c\/p\u003e\n\u003ch4\u003eHow does the corner connect to the straight trim?\u003c\/h4\u003e\n\u003cp\u003eUse compatible connectors to join each side to the adjoining 1m straight lengths.\u003c\/p\u003e\n\u003ch4\u003eCan I use this for an inside corner?\u003c\/h4\u003e\n\u003cp\u003eNo — use the internal version for inward-facing or recessed details.\u003c\/p\u003e\n\u003ch4\u003eWhy use a pre-formed corner?\u003c\/h4\u003e\n\u003cp\u003eIt avoids cutting and forming a 90° angle by hand, for quicker installation and a more consistent finish.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed help planning your edging layout?\u003c\/h3\u003e\n\u003cp\u003eNot sure whether a roof detail requires an internal or external corner, or how many edging components your project needs? Our in-house technical team can provide free, practical advice on planning the complete perimeter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":54207513330007,"sku":"UGRETEC","price":27.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/aluminium_edge_trim_corner_fw.jpg?v=1785665849"},{"product_id":"green-roof-border-pebbles","title":"UGR Green Roof Border Pebbles – 20kg Bags","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eCreate an attractive border around your green roof\u003c\/h3\u003e\n\u003cp\u003eUGR Green Roof Border Pebbles provide a decorative and practical finish around the perimeter of a living roof.\u003c\/p\u003e\n\u003cp\u003eThe colourful beach pebbles can also be positioned around skylights, drainage outlets and other roof features where a clear separation from the vegetation and growing substrate is required.\u003c\/p\u003e\n\u003cp\u003eSupplied in manageable 20kg bags, they are suitable for domestic green roofs as well as larger extensive or intensive systems.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eWhy use pebbles on a green roof?\u003c\/h3\u003e\n\u003cp\u003eA correctly positioned pebble border can offer several practical benefits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHelps keep growing medium and vegetation away from roof edges\u003c\/li\u003e\n\u003cli\u003eReduces the risk of loose material reaching and blocking gutters\u003c\/li\u003e\n\u003cli\u003eKeeps vegetation clear of drainage outlets and other penetrations\u003c\/li\u003e\n\u003cli\u003eCan help reduce wind exposure at the edge of the green roof build-up\u003c\/li\u003e\n\u003cli\u003eCan form part of a specified fire-break detail\u003c\/li\u003e\n\u003cli\u003eCreates access routes through larger roofs that require maintenance\u003c\/li\u003e\n\u003cli\u003eAdds an attractive contrast to sedum, wildflowers and other planting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePebble borders can also be used to divide planted areas or create decorative features within the roof layout.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eAvailable quantities\u003c\/h3\u003e\n\u003cp\u003eChoose from four quantities, each supplied in individual 20kg bags:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e10 bags: 200kg total\u003c\/li\u003e\n\u003cli\u003e20 bags: 400kg total\u003c\/li\u003e\n\u003cli\u003e30 bags: 600kg total\u003c\/li\u003e\n\u003cli\u003e40 bags: 800kg total\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEach 20kg bag covers approximately one linear metre when forming a border around 150mm wide. Actual coverage will depend on the required depth, the size and arrangement of the pebbles and the finished appearance you want to achieve. A deeper or fuller border will require additional bags.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eHow many bags will I need?\u003c\/h3\u003e\n\u003cp\u003eMeasure the total length of every area that requires a pebble border, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe outer roof perimeter\u003c\/li\u003e\n\u003cli\u003eSkylights\u003c\/li\u003e\n\u003cli\u003eRoof outlets and drains\u003c\/li\u003e\n\u003cli\u003eVentilation pipes and other penetrations\u003c\/li\u003e\n\u003cli\u003eMaintenance routes\u003c\/li\u003e\n\u003cli\u003eInternal divisions between planted areas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAs a general guide:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA 10m border requires approximately 10 bags\u003c\/li\u003e\n\u003cli\u003eA 20m border requires approximately 20 bags\u003c\/li\u003e\n\u003cli\u003eA 30m border requires approximately 30 bags\u003c\/li\u003e\n\u003cli\u003eA 40m border requires approximately 40 bags\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese estimates assume a border approximately 150mm wide and are intended as a starting point rather than a guaranteed coverage figure.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eInstalling green roof border pebbles\u003c\/h3\u003e\n\u003cp\u003eThe pebbles should be installed over a suitable filter layer so that small particles and fines cannot enter and obstruct the drainage system.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eComplete the waterproofing, protection and drainage layers required by the green roof design.\u003c\/li\u003e\n\u003cli\u003eConfirm that a suitable geotextile or bonded filter layer is present beneath the proposed pebble areas.\u003c\/li\u003e\n\u003cli\u003ePosition the edge trim and other perimeter components where required.\u003c\/li\u003e\n\u003cli\u003eMark out a border approximately 150mm wide around the roof perimeter, outlets and penetrations.\u003c\/li\u003e\n\u003cli\u003eCarefully distribute the pebbles to the required depth without damaging the membranes beneath.\u003c\/li\u003e\n\u003cli\u003eInstall the growing substrate alongside the completed border.\u003c\/li\u003e\n\u003cli\u003eKeep outlets and drainage openings visible and free from obstruction.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eSome installations use a separate filter fleece extending from the drainage layer towards the waterproofing, with the pebbles positioned above it. This is acceptable where the fleece forms a suitable continuous filter layer.\u003c\/p\u003e\n\u003cp\u003eFor a neat separation between the pebbles and growing substrate, use the \u003ca href=\"\/products\/green-roof-edge-trim\"\u003eUGR Aluminium Green Roof Edge Trim – 1m\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eImportant design considerations\u003c\/h3\u003e\n\u003cp\u003ePebbles can contribute to wind, fire and maintenance details, but they should not be treated as a substitute for a properly designed wind-uplift restraint, fire-protection strategy or access system.\u003c\/p\u003e\n\u003cp\u003eThe roof structure must also be capable of supporting the combined saturated weight of the complete green roof build-up, including the selected quantity of pebbles.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eProduct type\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eDecorative beach pebbles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eApplication\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eGreen roof borders and separation areas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eBag weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e20kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eAvailable quantities\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e10, 20, 30 or 40 bags\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eTotal weights\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e200kg, 400kg, 600kg or 800kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eApprox. coverage per bag\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eOne linear metre (150mm border)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eIndicative border width\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e150mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eInstallation requirement\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003ePosition over a suitable filter layer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003eAppearance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003eNatural variation in colour expected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eHow much border will one 20kg bag cover?\u003c\/h4\u003e\n\u003cp\u003eApproximately one linear metre at a 150mm-wide border. Coverage varies with depth and arrangement.\u003c\/p\u003e\n\u003ch4\u003eDo the pebbles need to be laid over a filter layer?\u003c\/h4\u003e\n\u003cp\u003eYes. A suitable filter layer beneath prevents fines obstructing the drainage system.\u003c\/p\u003e\n\u003ch4\u003eWhere should pebble borders be installed?\u003c\/h4\u003e\n\u003cp\u003eAround the perimeter and around skylights, outlets, pipes and other penetrations; also maintenance routes and decorative divisions.\u003c\/p\u003e\n\u003ch4\u003eCan the pebbles act as a fire break?\u003c\/h4\u003e\n\u003cp\u003eA pebble strip can form part of a specified fire-break detail, following the project design and fire-safety requirements.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed help calculating your pebble border?\u003c\/h3\u003e\n\u003cp\u003eUnsure how many bags your roof needs or where the pebble border should be positioned? Our in-house technical team can provide free, practical advice based on your roof dimensions and proposed green roof layout.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"10 bags (200kg)","offer_id":54207513559383,"sku":"UGRP\/10","price":146.0,"currency_code":"GBP","in_stock":true},{"title":"20 bags (400kg)","offer_id":54207513592151,"sku":"UGRP\/20","price":241.0,"currency_code":"GBP","in_stock":true},{"title":"30 bags (600kg)","offer_id":54207513624919,"sku":"UGRP\/30","price":346.0,"currency_code":"GBP","in_stock":true},{"title":"40 bags (800kg)","offer_id":54207513657687,"sku":"UGRP\/40","price":441.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/UGR_Green_Roof_Border_Pebbles.jpg?v=1787239251"},{"product_id":"sedum-roof-trays","title":"UGR Instant Sedum Roof Trays","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cp\u003eEach all-in-one tray combines a drainage layer, water-storage cups, specially formulated substrate and 16 varieties of sedum grown from seed over approximately 12 months before delivery. Suitable for professional installers and DIY projects on extensions, sheds, garden offices and other structures.\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid #7CA42A; padding: 12px 16px; border-radius: 8px; background: #f6faef;\"\u003e\n\u003ch3 style=\"margin-top: 0;\"\u003eDelivery pricing\u003c\/h3\u003e\n\u003cp\u003eThe first tray includes the £80 ex VAT pallet-delivery charge. Each additional tray is £17.50 ex VAT. No further pallet-delivery charge applies for up to 45 trays. Order any quantity from 1 to 45 trays (45 trays fill one pallet, covering approx. 10m²). For more than 45 trays, please contact our team or place a separate order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eAn all-in-one modular system\u003c\/h3\u003e\n\u003cp\u003eEach tray has 16 water-storage cups. Rainwater moves down through the sedum, substrate and clay granules into the cups, with drainage openings discharging excess gradually. This balances draining excess rainfall, retaining moisture for the roots, supplying oxygen to the root zone and supporting healthy growth.\u003c\/p\u003e\n\u003ch3\u003eHow many trays and weight\u003c\/h3\u003e\n\u003cp\u003eEach tray is 460mm x 495mm x 80mm; approx. 4.5 trays cover 1m² (45 trays ≈ 10m²). Each tray weighs approx. 0.7kg empty and 13kg saturated; the saturated system is approx. 58kg\/m². The roof structure must support the full saturated load plus protection layers, perimeter materials, snow and maintenance loads.\u003c\/p\u003e\n\u003ch3\u003ePreparing the roof and installation\u003c\/h3\u003e\n\u003cp\u003eInstall over completed waterproofing. We recommend a \u003ca href=\"\/products\/green-roof-protection-fleece-300\"\u003eprotection fleece\u003c\/a\u003e beneath, with perimeter \u003ca href=\"\/products\/green-roof-edge-trim\"\u003eedge trim\u003c\/a\u003e and \u003ca href=\"\/products\/green-roof-border-pebbles\"\u003epebbles\u003c\/a\u003e for a neat finish. Trays interlock: position the first, connect adjoining edges, cut around penetrations with a wood saw, and place any cut side against an adjoining tray. \u003cstrong\u003eInstall within 48 hours of receipt\u003c\/strong\u003e as they contain living vegetation.\u003c\/p\u003e\n\u003ch3\u003eWatering and maintenance\u003c\/h3\u003e\n\u003cp\u003eWater after installation and during prolonged dry weather. Repair small patches with sedum cuttings; lift and replace individual trays if larger areas are damaged. Apply a slow-release feed about every six months — \u003ca href=\"\/products\/osmocote-preplant-fertiliser\"\u003eOsmocote PrePlant Fertiliser\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eEasy access to the waterproofing\u003c\/h3\u003e\n\u003cp\u003eBecause the system consists of individual modular trays, sections can be temporarily lifted to inspect or access the roof waterproofing beneath.\u003c\/p\u003e\n\u003cp\u003eThis can make local inspection or repair considerably more straightforward than with a continuous substrate and vegetation build-up.\u003c\/p\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eThese trays are not a primary waterproofing system and must only be installed over a suitable, fully completed roof covering.\u003c\/p\u003e\n\u003cp\u003eThe roof structure, waterproofing, drainage provision, upstands, outlets and perimeter restraint must all be suitable for the proposed green roof.\u003c\/p\u003e\n\u003cp\u003eProjects involving pitched roofs, unusual roof constructions or uncertain structural capacity should be assessed before ordering.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Product type\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Modular, pre-established sedum roof tray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Tray material\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Recyclable polypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Tray dimensions\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 460mm x 495mm x 80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Coverage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 4.5 trays per m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Full tray weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 13kg saturated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Empty tray weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 0.7kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Saturated system weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 58kg\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Substrate quantity\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 5.5 litres per tray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Sedum\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 16 varieties grown from seed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Growing period before supply\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 12 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Installation window\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Within 48 hours of receipt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Maximum online order\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 45 trays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Full-pallet coverage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 10m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eHow many sedum trays do I need per square metre?\u003c\/h4\u003e\n\u003cp\u003eApproximately 4.5 trays per m². A full pallet of 45 trays covers approx. 10m².\u003c\/p\u003e\n\u003ch4\u003eCan I order any number of trays?\u003c\/h4\u003e\n\u003cp\u003eYes, from 1 to 45. The first-tray price includes pallet delivery; each additional tray is priced separately without another delivery charge.\u003c\/p\u003e\n\u003ch4\u003eHow quickly must I install the trays?\u003c\/h4\u003e\n\u003cp\u003eWithin 48 hours of receipt, because they contain living, established vegetation.\u003c\/p\u003e\n\u003ch4\u003eDo the trays need watering?\u003c\/h4\u003e\n\u003cp\u003eThey retain rainwater, but water additionally during prolonged dry weather, after 2–3 weeks without rain, or whenever the sedum shows stress.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed help planning your tray layout?\u003c\/h3\u003e\n\u003cp\u003eUnsure how many trays your roof needs, whether its structure is suitable or which protection and edging components to include? Our in-house technical team can provide free, practical guidance based on your roof dimensions and proposed layout.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":54207513690455,"sku":"UGRSRT","price":17.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/UGR_Instant_Sedum_Roof_Trays.jpg?v=1787278754"},{"product_id":"osmocote-preplant-fertiliser","title":"Osmocote PrePlant Fertiliser – 1kg","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cp\u003eThe formulation is a balanced 17-9-10 NPK mix plus magnesium oxide and trace elements. Resin-coated granules release nutrients gradually, with release responding to soil temperature — faster in warmth, slower in cold. Particularly suitable for maintaining established sedum systems including \u003ca href=\"\/products\/sedum-roof-trays\"\u003eUGR Instant Sedum Roof Trays\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTemperature-controlled nutrient release\u003c\/h3\u003e\n\u003cp\u003eThe resin coating controls how quickly nutrients are released into the growing medium. Release responds naturally to soil temperature:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNutrients are released more quickly during warmer growing conditions\u003c\/li\u003e\n\u003cli\u003eRelease slows as temperatures fall\u003c\/li\u003e\n\u003cli\u003ePlants receive a gradual supply rather than one concentrated feed\u003c\/li\u003e\n\u003cli\u003eOnly one or two applications are normally required each year\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis makes routine green roof maintenance simpler while helping support the sedum through different stages of seasonal growth.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eBalanced nutrient formulation\u003c\/h3\u003e\n\u003cp\u003eThe fertiliser formulation is 17-9-10 + 2MgO + TE. This provides:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNitrogen to support healthy vegetative growth\u003c\/li\u003e\n\u003cli\u003ePhosphorus and potassium as part of the balanced plant feed\u003c\/li\u003e\n\u003cli\u003eAdded magnesium oxide\u003c\/li\u003e\n\u003cli\u003eSupplementary trace elements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt can also be used for other suitable plants, trees and shrubs where this formulation meets their feeding requirements.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eCoverage\u003c\/h3\u003e\n\u003cp\u003eEach 1kg bag covers approximately 20m² of sedum roof. Actual use should follow the application guidance supplied with the product. Distribute the granules evenly across the planted area rather than allowing them to collect in concentrated piles.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eApplying the fertiliser\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eInspect the sedum roof and remove any unwanted debris or weeds.\u003c\/li\u003e\n\u003cli\u003eMeasure the planted area to determine the amount of fertiliser required.\u003c\/li\u003e\n\u003cli\u003eScatter the granules evenly across the sedum and growing medium.\u003c\/li\u003e\n\u003cli\u003eAvoid concentrating large quantities in one place.\u003c\/li\u003e\n\u003cli\u003eContinue watering and maintaining the green roof as appropriate for the weather and planting.\u003c\/li\u003e\n\u003cli\u003eRepeat once or twice during the year, in accordance with the product instructions and condition of the sedum.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eFor UGR Instant Sedum Roof Trays, the technical guidance recommends applying a suitable slow-release granular fertiliser approximately once every six months.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eFertiliser requirements vary between planting systems. Apply the product in accordance with its packaging instructions and the requirements of the specific plants and growing medium.\u003c\/p\u003e\n\u003cp\u003eFertiliser supports plant nutrition but does not replace appropriate watering, drainage or general green roof maintenance.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Product type\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Slow-release granular fertiliser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Formulation\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Osmocote PrePlant, 17-9-10 + 2MgO + TE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Pack size\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 1kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Approx. coverage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 20m² per bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Application frequency\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Normally one or two applications per year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Release method\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Resin-coated, temperature-responsive granules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Primary application\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Sedum green roofs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eHow much area will one bag cover?\u003c\/h4\u003e\n\u003cp\u003eApproximately 20m² of sedum roof when applied per the product guidance.\u003c\/p\u003e\n\u003ch4\u003eHow often should I fertilise a sedum roof?\u003c\/h4\u003e\n\u003cp\u003eOne or two applications per year; sedum trays typically every six months.\u003c\/p\u003e\n\u003ch4\u003eHow does slow-release fertiliser work?\u003c\/h4\u003e\n\u003cp\u003eEach granule's resin coating releases nutrients gradually, faster in warmth and slower in cold.\u003c\/p\u003e\n\u003ch4\u003eHow should I apply it?\u003c\/h4\u003e\n\u003cp\u003eScatter evenly over the planted area, avoiding concentrated piles.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed advice on maintaining your sedum roof?\u003c\/h3\u003e\n\u003cp\u003eUnsure how much fertiliser your roof requires or how often it should be applied? Our in-house technical team can provide free, practical advice on maintaining healthy sedum and selecting suitable products for your roof system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":54207513952599,"sku":"UGROPF","price":16.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/osmocote_preplant_fertiliser_hi_res.jpg?v=1785665872"},{"product_id":"green-roof-wildflower-seeds","title":"UGR Green Roof Wildflower Seed Mix – 30g","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eCreate a colourful, wildlife-friendly green roof\u003c\/h3\u003e\n\u003cp\u003eUGR Green Roof Wildflower Seed Mix is a specially selected blend of British native wildflowers and herbs developed for green roof environments.\u003c\/p\u003e\n\u003cp\u003eThe mixture contains no grass seed and includes up to 30 mainly low-to-medium-height species suited to low-depth, low-fertility growing media. Once established, the varied flowers can provide colour and habitat while attracting bees, butterflies and other native pollinating wildlife.\u003c\/p\u003e\n\u003cp\u003eEach 30g pack covers approximately 10m² when sown at the recommended rate of 3g per square metre.\u003c\/p\u003e\n\u003ch3\u003eDeveloped specifically for green roofs\u003c\/h3\u003e\n\u003cp\u003eGreen roof conditions can be challenging for ordinary planting, with shallow growing media, lower nutrient levels and greater exposure to sun and wind.\u003c\/p\u003e\n\u003cp\u003eThis mixture has been selected for those conditions and can be used to establish a biodiverse planted surface on suitable extensive or intensive green roof substrate.\u003c\/p\u003e\n\u003cp\u003eIt is ideal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDomestic green roofs\u003c\/li\u003e\n\u003cli\u003eSheds and garden rooms\u003c\/li\u003e\n\u003cli\u003eExtensions and garages\u003c\/li\u003e\n\u003cli\u003eCommercial roof areas\u003c\/li\u003e\n\u003cli\u003eBiodiverse extensive green roofs\u003c\/li\u003e\n\u003cli\u003eLow-fertility wildflower planting\u003c\/li\u003e\n\u003cli\u003eNew green roof systems requiring seed-based planting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eA varied native wildflower mixture\u003c\/h3\u003e\n\u003cp\u003eThe mixture may include the following British native wildflowers and herbs:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAgrimony – Agrimonia eupatoria\u003c\/li\u003e\n\u003cli\u003eBird's-foot trefoil – Lotus corniculatus\u003c\/li\u003e\n\u003cli\u003eBladder campion – Silene vulgaris\u003c\/li\u003e\n\u003cli\u003eBulbous buttercup – Ranunculus bulbosus\u003c\/li\u003e\n\u003cli\u003eCommon knapweed – Centaurea nigra\u003c\/li\u003e\n\u003cli\u003eCommon poppy – Papaver rhoeas\u003c\/li\u003e\n\u003cli\u003eCommon toadflax – Linaria vulgaris\u003c\/li\u003e\n\u003cli\u003eCorn chamomile – Anthemis arvensis\u003c\/li\u003e\n\u003cli\u003eCorn marigold – Glebionis segetum\u003c\/li\u003e\n\u003cli\u003eCorncockle – Agrostemma githago\u003c\/li\u003e\n\u003cli\u003eCornflower – Centaurea cyanus\u003c\/li\u003e\n\u003cli\u003eCowslip – Primula veris\u003c\/li\u003e\n\u003cli\u003eField forget-me-not – Myosotis arvensis\u003c\/li\u003e\n\u003cli\u003eField pansy – Viola arvensis\u003c\/li\u003e\n\u003cli\u003eField scabious – Knautia arvensis\u003c\/li\u003e\n\u003cli\u003eHoary plantain – Plantago media\u003c\/li\u003e\n\u003cli\u003eKidney vetch – Anthyllis vulneraria\u003c\/li\u003e\n\u003cli\u003eLady's bedstraw – Galium verum\u003c\/li\u003e\n\u003cli\u003eMeadow buttercup – Ranunculus acris\u003c\/li\u003e\n\u003cli\u003eMusk mallow – Malva moschata\u003c\/li\u003e\n\u003cli\u003eOxeye daisy – Leucanthemum vulgare\u003c\/li\u003e\n\u003cli\u003ePerforate St John's wort – Hypericum perforatum\u003c\/li\u003e\n\u003cli\u003eRibwort plantain – Plantago lanceolata\u003c\/li\u003e\n\u003cli\u003eRough hawkbit – Leontodon hispidus\u003c\/li\u003e\n\u003cli\u003eSalad burnet – Sanguisorba poterium\u003c\/li\u003e\n\u003cli\u003eScentless chamomile – Tripleurospermum inodorum\u003c\/li\u003e\n\u003cli\u003eSelfheal – Prunella vulgaris\u003c\/li\u003e\n\u003cli\u003eViper's bugloss – Echium vulgare\u003c\/li\u003e\n\u003cli\u003eWhite campion – Silene latifolia\u003c\/li\u003e\n\u003cli\u003eWild marjoram – Origanum vulgare\u003c\/li\u003e\n\u003cli\u003eWild mignonette – Reseda lutea\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe exact species and proportions can vary according to seed availability, so the mixture should not be represented as having a permanently fixed composition.\u003c\/p\u003e\n\u003ch3\u003eCoverage and sowing rate\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 30g\u003c\/li\u003e\n\u003cli\u003eRecommended sowing rate: 3g\/m²\u003c\/li\u003e\n\u003cli\u003eApproximate coverage: 10m²\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMeasure the area of prepared growing substrate rather than the total roof area. Exclude pebble borders, outlets, perimeter details and any other areas that will not be seeded.\u003c\/p\u003e\n\u003ch3\u003ePreparing the growing medium\u003c\/h3\u003e\n\u003cp\u003eThe seeds must be sown onto a suitable green roof substrate. Before sowing:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eComplete the waterproofing, drainage and green roof build-up.\u003c\/li\u003e\n\u003cli\u003eAdd the specified growing substrate.\u003c\/li\u003e\n\u003cli\u003eLevel the growing medium across the planted area.\u003c\/li\u003e\n\u003cli\u003eRake the surface to a fine tilth.\u003c\/li\u003e\n\u003cli\u003eRemove large stones, debris and unwanted plant growth.\u003c\/li\u003e\n\u003cli\u003eEnsure the surface is moist but not waterlogged.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe mixture can be used with different growing media. Extensive substrate is particularly suitable for shallow green roof seeding, while a deeper, more fertile intensive substrate may provide slightly improved germination. The datasheet describes extensive substrate depths of approximately 60–200mm and intensive substrate depths of approximately 200–1,000mm.\u003c\/p\u003e\n\u003ch3\u003eSowing the wildflower seeds\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eSow during spring or autumn wherever possible.\u003c\/li\u003e\n\u003cli\u003eDivide the seed into smaller portions to help achieve an even distribution.\u003c\/li\u003e\n\u003cli\u003eScatter the seed evenly across the levelled, finely raked substrate.\u003c\/li\u003e\n\u003cli\u003eSow at approximately 3g per square metre.\u003c\/li\u003e\n\u003cli\u003eLeave the seed on the prepared surface rather than mixing it deeply into the growing medium.\u003c\/li\u003e\n\u003cli\u003eWater the area lightly after sowing.\u003c\/li\u003e\n\u003cli\u003eKeep the substrate sufficiently moist during establishment without allowing it to become waterlogged.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eSpring-sown seed may require occasional watering through the summer so that the seed and young plants do not dry out. Watering is best carried out during the morning or evening.\u003c\/p\u003e\n\u003ch3\u003eWhen will the wildflowers appear?\u003c\/h3\u003e\n\u003cp\u003eSome growth should normally be visible during the first year, depending on the sowing date, weather, substrate and watering.\u003c\/p\u003e\n\u003cp\u003eSome perennial species require a period of frost and thaw before they germinate successfully. As a result, the roof may produce a stronger or more varied display during its second year.\u003c\/p\u003e\n\u003cp\u003eWildflower establishment is a gradual natural process rather than an instant planted finish.\u003c\/p\u003e\n\u003ch3\u003eMaintaining the wildflower roof\u003c\/h3\u003e\n\u003cp\u003eFrom March onwards, allow the developing vegetation to grow without regular cutting.\u003c\/p\u003e\n\u003cp\u003eAfter the flowers have finished and the seed heads have dispersed naturally, cut back the vegetation in late autumn and remove the clippings from the roof.\u003c\/p\u003e\n\u003cp\u003eRemoving the cut material helps prevent excessive nutrients building up within the growing medium and keeps the area suitable for wildflowers adapted to lower-fertility conditions.\u003c\/p\u003e\n\u003cp\u003eOnce the seedlings are established, gradually reduce routine watering, although additional water may still be required during prolonged dry periods.\u003c\/p\u003e\n\u003ch3\u003eComplete the perimeter\u003c\/h3\u003e\n\u003cp\u003ePebbles can be used around the perimeter, drainage outlets and roof penetrations to keep vegetation and substrate away from important drainage details — \u003ca href=\"\/products\/green-roof-border-pebbles\"\u003eUGR Green Roof Border Pebbles – 20kg Bags\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a neat separation between the planted area and pebble border, use \u003ca href=\"\/products\/green-roof-edge-trim\"\u003eUGR Aluminium Green Roof Edge Trim – 1m\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eThese seeds must be sown onto a suitable prepared green roof substrate. They should not be applied directly to waterproofing, drainage membrane, protection fleece, pebbles or another surface that cannot support plant establishment.\u003c\/p\u003e\n\u003cp\u003eThe exact species present, germination rate and finished appearance will vary according to seasonal conditions, seed availability, substrate, moisture and ongoing maintenance.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Product type\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Green roof wildflower seed mixture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Pack size\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 30g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Approx. coverage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 10m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Recommended sowing rate\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 3g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Composition\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 100% wildflower seed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Grass content\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e None\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Species\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Up to 30 British native wildflowers and herbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Preferred sowing periods\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Spring or autumn\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Wildlife value\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Attracts native pollinating species\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Important variation\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Species and proportions may vary by availability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eHow much area will one 30g pack cover?\u003c\/h4\u003e\n\u003cp\u003eApproximately 10m² at the recommended 3g\/m².\u003c\/p\u003e\n\u003ch4\u003eDoes the mixture contain grass seed?\u003c\/h4\u003e\n\u003cp\u003eNo. It is 100% wildflower seed and contains no grasses.\u003c\/p\u003e\n\u003ch4\u003eWhen should I sow the seeds?\u003c\/h4\u003e\n\u003cp\u003eSpring and autumn are preferred. Water lightly after sowing and keep the substrate from drying out during establishment.\u003c\/p\u003e\n\u003ch4\u003eWill every listed wildflower be present?\u003c\/h4\u003e\n\u003cp\u003eNot necessarily. The mix contains up to 30 species, but exact species and proportions vary with seed availability.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed help planning a wildflower green roof?\u003c\/h3\u003e\n\u003cp\u003eUnsure how much seed you need or whether your substrate and roof build-up are suitable for wildflowers? Our in-house technical team can provide free, practical advice on creating and maintaining a biodiverse green roof.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":54207514247511,"sku":"UGRWFS","price":15.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/fw_9_1.jpg?v=1785665880"},{"product_id":"20mm-storage-drainage-membrane-2m-x-10m","title":"UGR 20mm Storage \u0026 Drainage Membrane 2m x 10m","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch2\u003eDrain, store and filter water in one layer\u003c\/h2\u003e\n\u003cp\u003eUGR 20mm Storage \u0026amp; Drainage Membrane is an all-in-one water-management layer for extensive and intensive green roofs.\u003c\/p\u003e\n\u003cp\u003eManufactured from recycled high-density polyethylene, its 20mm-deep studded cavities temporarily store rainwater to support healthy vegetation. Perforations within the membrane allow excess water to drain into the space below, helping prevent the growing medium and plant roots from becoming saturated.\u003c\/p\u003e\n\u003cp\u003eA high-quality geotextile filter layer is permanently bonded to the upper face. This prevents soil fines and growing medium from blocking the drainage cavities while also removing the need to install a separate loose filter fabric.\u003c\/p\u003e\n\u003ch2\u003eWhy water management matters\u003c\/h2\u003e\n\u003cp\u003eA successful green roof needs to retain useful moisture while allowing excess rainfall to drain away safely.\u003c\/p\u003e\n\u003cp\u003eUGR 20mm Storage \u0026amp; Drainage Membrane performs three important functions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWater storage:\u003c\/b\u003e Holds approximately 6 litres of water per square metre for use by the vegetation\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDrainage:\u003c\/b\u003e Allows excess water to pass through the perforated membrane\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFiltration:\u003c\/b\u003e Prevents soil and fine particles from obstructing the drainage cavities\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe bonded geotextile also helps prevent the filter layer from slipping or compressing into the storage cups during installation.\u003c\/p\u003e\n\u003ch2\u003eSuitable green roof applications\u003c\/h2\u003e\n\u003cp\u003eUGR 20mm Storage \u0026amp; Drainage Membrane can be specified for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExtensive green roofs with low-growing vegetation\u003c\/li\u003e\n\u003cli\u003eSemi-intensive green roof systems\u003c\/li\u003e\n\u003cli\u003eIntensive green roofs with deeper growing substrates\u003c\/li\u003e\n\u003cli\u003eFlat roofs and low-pitched roofs\u003c\/li\u003e\n\u003cli\u003eHouses and residential extensions\u003c\/li\u003e\n\u003cli\u003eGarages, sheds and garden buildings\u003c\/li\u003e\n\u003cli\u003eLarger commercial green roofs\u003c\/li\u003e\n\u003cli\u003eSoft landscaping over decks\u003c\/li\u003e\n\u003cli\u003eInverted warm roof applications\u003c\/li\u003e\n\u003cli\u003eSuitable walkable or drivable landscaping build-ups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts combination of drainage, storage and filtration makes it a versatile option for a broad range of domestic and professional green roof projects.\u003c\/p\u003e\n\u003cp\u003eFor walkable or drivable finishes, the bonded geotextile must be removed, the studs must be filled and the appropriate bedding or sub-base courses installed as part of the specified system.\u003c\/p\u003e\n\u003ch2\u003eStrong, durable and long-lasting\u003c\/h2\u003e\n\u003cp\u003eUGR 20mm Storage \u0026amp; Drainage Membrane has an approximate compressive strength of 150kN\/m², helping it withstand the loads applied by the green roof build-up above.\u003c\/p\u003e\n\u003cp\u003eThe recycled HDPE membrane is:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTough and durable\u003c\/li\u003e\n\u003cli\u003eResistant to water\u003c\/li\u003e\n\u003cli\u003eResistant to alkalis and saline solutions\u003c\/li\u003e\n\u003cli\u003eResistant to organic acids\u003c\/li\u003e\n\u003cli\u003eUnaffected by minerals\u003c\/li\u003e\n\u003cli\u003eResistant to bacteria, fungi and other small organisms\u003c\/li\u003e\n\u003cli\u003eSuitable for temperatures between -30°C and +80°C\u003c\/li\u003e\n\u003cli\u003eGuaranteed against deterioration for 30 years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe product is also tested and CE marked to the relevant standard.\u003c\/p\u003e\n\u003ch2\u003eWhere UGR 20mm Membrane fits in the system\u003c\/h2\u003e\n\u003cp\u003eA typical green roof build-up may include:\u003c\/p\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003eStructural roof deck\u003c\/li\u003e\n\u003cli\u003ePrimary waterproofing layer\u003c\/li\u003e\n\u003cli\u003eRoot barrier\u003c\/li\u003e\n\u003cli\u003eProtection fleece\u003c\/li\u003e\n\u003cli\u003eUGR 20mm Storage \u0026amp; Drainage Membrane\u003c\/li\u003e\n\u003cli\u003eBonded geotextile filter layer\u003c\/li\u003e\n\u003cli\u003eGreen roof substrate\u003c\/li\u003e\n\u003cli\u003eVegetation\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWhere a dedicated root-protection layer is required, install the \u003ca href=\"https:\/\/urbangreenroofs.com\/products\/green-roof-root-barrier\"\u003eUGR Green Roof Root Barrier\u003c\/a\u003e beneath the drainage membrane.\u003c\/p\u003e\n\u003cp\u003eA protection fleece may also be specified to reduce the risk of light mechanical damage to the waterproofing and root barrier. Consider using \u003ca href=\"https:\/\/urbangreenroofs.com\/products\/green-roof-protection-fleece-300\"\u003eUGR Green Roof Protection Fleece 300\u003c\/a\u003e.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eInstalling UGR 20mm Membrane\u003c\/h2\u003e\n\u003cp\u003eThe application surface should have a gradient of at least 2%. Complete the horizontal waterproofing and install any other specified underlying layers before laying the membrane.\u003c\/p\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003eRoll out UGR 20mm Storage \u0026amp; Drainage Membrane over the prepared surface with the bonded geotextile facing upwards.\u003c\/li\u003e\n\u003cli\u003eCut the dimpled sheet to the required length, taking care not to damage the waterproofing or any underlying layers.\u003c\/li\u003e\n\u003cli\u003eOverlap adjoining rolls by approximately 100mm.\u003c\/li\u003e\n\u003cli\u003eLift the loose geotextile overlap and position it over the adjoining section.\u003c\/li\u003e\n\u003cli\u003eWhere the joint needs additional protection, seal it using an appropriate compatible jointing tape or sealant.\u003c\/li\u003e\n\u003cli\u003eOnce installed, the membrane can immediately receive the specified extensive or intensive green roof substrate.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe membrane is supplied in a manageable 20m² roll and is installed by simply unrolling and cutting it to fit the roof layout.\u003c\/p\u003e\n\u003ch2\u003eImportant suitability note\u003c\/h2\u003e\n\u003cp\u003eUGR 20mm Storage \u0026amp; Drainage Membrane is not a primary waterproofing membrane or a substitute for dedicated root protection. Where roots could affect the waterproofing or roof structure, install the \u003ca href=\"https:\/\/urbangreenroofs.com\/products\/green-roof-root-barrier\"\u003eUGR Green Roof Root Barrier\u003c\/a\u003e beneath it.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Material\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Recycled high-density polyethylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Membrane weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 1,000g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Geotextile\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Polypropylene, approx. 100g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Total weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 1,100g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Stud height\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Number of studs\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 400\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Colour\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Roll dimensions\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 2m x 10m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Geotextile overlap\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Additional 100mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Coverage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 20m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Approximate roll weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 22kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Water-storage capacity\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 6l\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Water-drainage capacity\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 9l\/(s·m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Air volume between studs\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 14l\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Compressive strength\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 150kN\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Temperature resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e -30°C to +80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Characteristic opening width\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 170μm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Water permeability\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Approx. 100 × 10⁻³m\/s to EN ISO 11058\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Fire resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Class E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Chemical properties\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Chemically resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Additional properties\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Safe for drinking-water contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Accreditation\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Tested and CE marked to the relevant standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eHow much water does UGR 20mm Membrane store?\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eIts 20mm cavities provide an approximate water-storage capacity of 6 litres per square metre. Excess water can pass through the perforated membrane into the drainage space beneath.\u003c\/p\u003e\n\u003ch4\u003eWhich way up should the membrane be installed?\u003c\/h4\u003e\n\u003cp\u003eInstall it with the bonded geotextile layer facing upwards, towards the growing substrate. The studded HDPE membrane sits beneath the geotextile.\u003c\/p\u003e\n\u003ch4\u003eDoes UGR 20mm Membrane need a separate filter layer?\u003c\/h4\u003e\n\u003cp\u003eNo separate loose filter fabric is normally required directly above the membrane because a polypropylene geotextile filter layer is already bonded to it.\u003c\/p\u003e\n\u003ch4\u003eCan it be used for both extensive and intensive green roofs?\u003c\/h4\u003e\n\u003cp\u003eYes. UGR 20mm Storage \u0026amp; Drainage Membrane is suitable for extensive, semi-intensive and intensive green roofs, subject to the overall system design, structural loading and planting requirements.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch2\u003eNeed help choosing your drainage layer?\u003c\/h2\u003e\n\u003cp\u003eNot sure whether the UGR 20mm Storage \u0026amp; Drainage Membrane offers the right balance of water storage and drainage for your planting scheme, roof pitch or substrate depth? Our in-house technical team can provide free, practical advice on selecting compatible layers for your green roof.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":54207514575191,"sku":"UGR20SDM20","price":202.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/PermaSEAL_PRO_20P_Final_Image_1000x1000_edited.jpg?v=1788431828"},{"product_id":"root-barrier-overtape-300mm-x-20m","title":"UGR Root Barrier Overtape - 300mm x 20m","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eExtra-wide tape for sealing green roof membrane joints\u003c\/h3\u003e\n\u003cp\u003eUGR Root Barrier Overtape is a premium self-adhesive butyl rubber tape for creating long-lasting seals over membrane joints, overlaps and difficult roof details.\u003c\/p\u003e\n\u003cp\u003eIts extra-wide 300mm format provides generous coverage across adjoining surfaces. A protective PET-reinforced aluminium backing improves resistance to tearing and puncturing while helping protect the joint against weather and UV exposure.\u003c\/p\u003e\n\u003cp\u003eIt is particularly suitable for sealing overlaps in the \u003ca href=\"\/products\/green-roof-root-barrier\"\u003eUGR Green Roof Root Barrier\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eReliable protection against water and vapour\u003c\/h3\u003e\n\u003cp\u003eThe flexible butyl adhesive creates a close seal over compatible membranes and building materials. Key benefits include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExcellent adhesion to a wide range of surfaces\u003c\/li\u003e\n\u003cli\u003eWaterproof sealing\u003c\/li\u003e\n\u003cli\u003eProtection against vapour penetration\u003c\/li\u003e\n\u003cli\u003eAirtight jointing\u003c\/li\u003e\n\u003cli\u003eUV and weather resistance\u003c\/li\u003e\n\u003cli\u003eFlexibility throughout its service life\u003c\/li\u003e\n\u003cli\u003eGood conformity around irregular shapes\u003c\/li\u003e\n\u003cli\u003eStrong tear and puncture resistance\u003c\/li\u003e\n\u003cli\u003eSuitable for horizontal and vertical applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe tape can follow changes in direction and material more easily than a rigid flashing detail, making it useful around roof penetrations, corners and connections.\u003c\/p\u003e\n\u003ch3\u003eSuitable applications\u003c\/h3\u003e\n\u003cp\u003eUGR Root Barrier Overtape can be used for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSealing green roof root-barrier overlaps\u003c\/li\u003e\n\u003cli\u003eCovering and protecting membrane joints\u003c\/li\u003e\n\u003cli\u003eSealing around roof windows and skylights\u003c\/li\u003e\n\u003cli\u003eDetailing around chimneys and pipework\u003c\/li\u003e\n\u003cli\u003eRepairs to compatible existing flashings\u003c\/li\u003e\n\u003cli\u003eSealing gutters and ridges\u003c\/li\u003e\n\u003cli\u003eDetailing conservatories and porches\u003c\/li\u003e\n\u003cli\u003eSealing compatible cavity-drain membrane joints\u003c\/li\u003e\n\u003cli\u003eRepairing suitable concrete cracks\u003c\/li\u003e\n\u003cli\u003eRepairing compatible lead gutters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt can bond to suitably prepared materials including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible membranes\u003c\/li\u003e\n\u003cli\u003eConcrete\u003c\/li\u003e\n\u003cli\u003eBrick\u003c\/li\u003e\n\u003cli\u003eWood\u003c\/li\u003e\n\u003cli\u003eAluminium\u003c\/li\u003e\n\u003cli\u003ePVC\u003c\/li\u003e\n\u003cli\u003eGlass\u003c\/li\u003e\n\u003cli\u003eSteel\u003c\/li\u003e\n\u003cli\u003eRoofing felt\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlways check adhesion and compatibility with the particular membrane, coating or substrate before completing the installation.\u003c\/p\u003e\n\u003ch3\u003eSealing root-barrier joints\u003c\/h3\u003e\n\u003cp\u003eFor enhanced protection at UGR Green Roof Root Barrier overlaps, position the 300mm tape centrally across the completed joint. This provides approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e150mm coverage on one side of the joint\u003c\/li\u003e\n\u003cli\u003e150mm coverage on the other side\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEvenly sharing the tape across the overlap provides greater protection where more aggressive plant roots are expected. See the \u003ca href=\"\/products\/green-roof-root-barrier\"\u003eUGR Green Roof Root Barrier\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003ePreparing the surface\u003c\/h3\u003e\n\u003cp\u003eCorrect preparation is essential for a reliable bond. Before application:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eMake sure the substrate is dry.\u003c\/li\u003e\n\u003cli\u003eRemove dust, dirt and loose material.\u003c\/li\u003e\n\u003cli\u003eRemove oil and grease.\u003c\/li\u003e\n\u003cli\u003eClear away moss and algae.\u003c\/li\u003e\n\u003cli\u003ePrime porous surfaces with a suitable SBR bonding additive where required.\u003c\/li\u003e\n\u003cli\u003eAvoid cleaning the surface with detergent, as residues can interfere with the initial bond.\u003c\/li\u003e\n\u003cli\u003eCheck that the tape is compatible with the underlying material.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eIn colder weather, allow the tape to warm to a suitable application temperature before use.\u003c\/p\u003e\n\u003ch3\u003eApplying the overtape\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMeasure and cut the tape to the required length.\u003c\/li\u003e\n\u003cli\u003ePosition the strip before removing the backing paper.\u003c\/li\u003e\n\u003cli\u003ePeel back approximately 100mm of the release paper.\u003c\/li\u003e\n\u003cli\u003ePress the exposed adhesive firmly into position.\u003c\/li\u003e\n\u003cli\u003eContinue removing the backing gradually while applying the tape.\u003c\/li\u003e\n\u003cli\u003eUse a hard roller to press the complete surface firmly onto the substrate.\u003c\/li\u003e\n\u003cli\u003ePay particular attention to edges, corners and overlaps.\u003c\/li\u003e\n\u003cli\u003eAvoid unnecessary joins in the tape wherever possible.\u003c\/li\u003e\n\u003cli\u003eWhere several pieces are required for weathering, arrange the upper section so it overlaps down over the lower section.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe tape should be applied without creases, trapped air or unsupported sections.\u003c\/p\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eUGR Root Barrier Overtape is a jointing and sealing product. It is not a substitute for the roof's primary waterproofing system or for a correctly installed root barrier.\u003c\/p\u003e\n\u003cp\u003eThe surface must be clean, dry, stable and compatible with the butyl adhesive. Carry out a small adhesion test where the substrate or coating is uncertain.\u003c\/p\u003e\n\u003cp\u003eFor joints that need to be sealed between two overlapping membranes rather than covered from above, the \u003ca href=\"\/products\/membrane-jointing-tape-50mm-x-10m\"\u003eUGR Membrane Jointing Tape 50mm x 10m\u003c\/a\u003e may be more appropriate.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Product type\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Self-adhesive flashband overtape\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Adhesive material\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Butyl rubber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Backing\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e PET-reinforced aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Width\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 300mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Roll length\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 20m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Application\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Horizontal and vertical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Seal properties\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Water, vapour and airtight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Weather resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e UV and weather resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Root-barrier joint coverage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e ~150mm each side of the joint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Suitable users\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Professional and DIY installers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eWhat is UGR Root Barrier Overtape used for?\u003c\/h4\u003e\n\u003cp\u003ePrimarily sealing overlapping root-barrier joints; also flashing repairs and sealing around penetrations, windows and pipework.\u003c\/p\u003e\n\u003ch4\u003eHow should it be positioned over a root-barrier joint?\u003c\/h4\u003e\n\u003cp\u003eCentre the 300mm tape over the joint for ~150mm coverage on each side.\u003c\/p\u003e\n\u003ch4\u003eDo I need to prepare the surface?\u003c\/h4\u003e\n\u003cp\u003eYes — dry and free of dust, grease, moss and algae. Prime porous substrates with SBR; don't use detergents for final cleaning.\u003c\/p\u003e\n\u003ch4\u003eCan it be applied in cold weather?\u003c\/h4\u003e\n\u003cp\u003eBring the tape up to a suitable temperature first so the adhesive forms a reliable initial bond.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed help selecting the correct membrane tape?\u003c\/h3\u003e\n\u003cp\u003eUnsure whether your joint needs wide overtape, double-sided tape or a membrane adhesive? Our in-house technical team can provide free guidance on choosing a compatible jointing method for your green roof build-up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":54207514902871,"sku":"UGROT300","price":73.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/permaseal_flashband_overtape_300_fw_1.jpg?v=1785665896"},{"product_id":"membrane-jointing-tape-50mm-x-10m","title":"UGR Membrane Jointing Tape 50mm x 10m","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eSeal overlapping membrane joints securely\u003c\/h3\u003e\n\u003cp\u003eUGR Membrane Jointing Tape is a high-tack butyl tape designed to create a continuous seal between two overlapping sheets of compatible plastic membrane.\u003c\/p\u003e\n\u003cp\u003eThe tape sits inside the overlap, bonding the two membrane surfaces together to help prevent the passage of water and air through the joint.\u003c\/p\u003e\n\u003cp\u003eIt is supplied with a removable backing strip, allowing the tape to be accurately positioned on the first membrane before the second sheet is bonded over it.\u003c\/p\u003e\n\u003ch3\u003eSuitable membrane applications\u003c\/h3\u003e\n\u003cp\u003eThe tape can be used with compatible:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGreen roof drainage membranes\u003c\/li\u003e\n\u003cli\u003eDamp-proof membranes\u003c\/li\u003e\n\u003cli\u003eCavity-drain membranes\u003c\/li\u003e\n\u003cli\u003eVapour-control layers\u003c\/li\u003e\n\u003cli\u003eRadon membranes\u003c\/li\u003e\n\u003cli\u003eGas-barrier membranes\u003c\/li\u003e\n\u003cli\u003eOther suitable plastic membrane surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWithin the UGR range, it can be used to seal compatible overlaps in the \u003ca href=\"\/products\/20mm-deck-wall-drainage-membrane-2m-x-10m\"\u003eUGR 20mm Deck \u0026amp; Wall Drainage Membrane\u003c\/a\u003e. Always check the specified jointing detail and membrane compatibility before installation.\u003c\/p\u003e\n\u003ch3\u003eHigh-tack butyl formulation\u003c\/h3\u003e\n\u003cp\u003eThe soft butyl composition provides:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGood initial grip to clean plastic surfaces\u003c\/li\u003e\n\u003cli\u003eA flexible seal throughout its service life\u003c\/li\u003e\n\u003cli\u003eGood conformity around membrane profiles and details\u003c\/li\u003e\n\u003cli\u003eAccurate application with minimal waste\u003c\/li\u003e\n\u003cli\u003eWater-resistant and airtight jointing when correctly installed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBecause the tape remains flexible, it can accommodate normal movement within a correctly detailed membrane joint without becoming rigid or brittle.\u003c\/p\u003e\n\u003ch3\u003eDouble-sided jointing rather than overtaping\u003c\/h3\u003e\n\u003cp\u003eThis tape is installed between two overlapping membrane sheets. It performs a different function from a single-sided overtape, which is applied over the upper surface of a completed joint.\u003c\/p\u003e\n\u003cp\u003eFor wide surface sealing over a root-barrier overlap, use the \u003ca href=\"\/products\/root-barrier-overtape-300mm-x-20m\"\u003eUGR Root Barrier Overtape\u003c\/a\u003e. Where a cartridge-applied adhesive is preferable for a compatible detail, consider \u003ca href=\"\/products\/high-strength-membrane-adhesive-310ml-cartridge\"\u003eHigh Strength Membrane Adhesive\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003ePreparing the membranes\u003c\/h3\u003e\n\u003cp\u003eReliable adhesion depends on suitable surface preparation. Before applying the tape:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eCheck that both membranes are compatible with butyl jointing tape.\u003c\/li\u003e\n\u003cli\u003eMake sure the contact surfaces are clean and dry.\u003c\/li\u003e\n\u003cli\u003eRemove dust, dirt, grease and loose material.\u003c\/li\u003e\n\u003cli\u003eLay the membranes flat and remove creases from the joint area.\u003c\/li\u003e\n\u003cli\u003ePlan the overlap before removing the tape's backing strip.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eDo not apply the tape over contaminated, unstable or heavily creased surfaces.\u003c\/p\u003e\n\u003ch3\u003eApplying the jointing tape\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eRemove the tape's outer packaging.\u003c\/li\u003e\n\u003cli\u003eUnroll the required length without stretching it.\u003c\/li\u003e\n\u003cli\u003eApply the tape, with its release backing still attached, to the first membrane.\u003c\/li\u003e\n\u003cli\u003eKeep the membrane flat and position the tape within the intended overlap.\u003c\/li\u003e\n\u003cli\u003ePress firmly along the full length to create a strong initial bond.\u003c\/li\u003e\n\u003cli\u003eAlign the second membrane over the joint.\u003c\/li\u003e\n\u003cli\u003eGradually remove the release backing while pressing the second membrane onto the exposed adhesive.\u003c\/li\u003e\n\u003cli\u003eApply firm, even pressure through the upper membrane across the complete joint.\u003c\/li\u003e\n\u003cli\u003eCheck that the tape is fully enclosed and that no creases or gaps remain.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eDo not stretch the tape\u003c\/h3\u003e\n\u003cp\u003eButyl tape should not be stretched while it is being unrolled or installed.\u003c\/p\u003e\n\u003cp\u003eIf stretched, the tape may gradually return towards its manufactured dimensions. This can pull on the surrounding membrane and create creases that compromise the finished joint.\u003c\/p\u003e\n\u003cp\u003eAllow the tape to lie naturally and apply it without tension.\u003c\/p\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003eUGR Membrane Jointing Tape is a membrane-jointing accessory and does not replace the primary waterproofing, gas barrier or other protective layer within the system.\u003c\/p\u003e\n\u003cp\u003eIt is intended for compatible plastic surfaces and should not be assumed suitable for every membrane formulation. Check compatibility where the membrane type or joint detail is uncertain.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Product type\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Double-sided membrane-jointing tape\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Adhesive material\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Butyl\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Width\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Roll length\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e 10m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Adhesive faces\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Double-sided\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Backing\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Removable release liner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Application\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Between overlapping membrane sheets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Initial adhesion\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e High tack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0; vertical-align: top;\"\u003e Suitable surfaces\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0;\"\u003e Compatible clean plastic membranes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eWhere is double-sided jointing tape positioned?\u003c\/h4\u003e\n\u003cp\u003eBetween two overlapping membrane sheets, bonding the underside of the upper membrane to the surface of the lower one.\u003c\/p\u003e\n\u003ch4\u003eShould I stretch the tape during application?\u003c\/h4\u003e\n\u003cp\u003eNo. Stretching butyl can cause it to contract afterwards and crease the surrounding membrane.\u003c\/p\u003e\n\u003ch4\u003eWhat surfaces can it be applied to?\u003c\/h4\u003e\n\u003cp\u003eClean, compatible plastic membranes — drainage, damp-proof, vapour-control and gas-barrier types. Check compatibility first.\u003c\/p\u003e\n\u003ch4\u003eWhat is the difference between jointing tape and overtape?\u003c\/h4\u003e\n\u003cp\u003eJointing tape seals between two overlapping membranes; overtape is single-sided and covers the upper surface of an assembled joint.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed help choosing the right jointing method?\u003c\/h3\u003e\n\u003cp\u003eUnsure whether your membrane overlap requires double-sided tape, wide overtape or cartridge adhesive? Our in-house technical team can provide free, practical guidance on selecting the correct joint detail for your green roof system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":54207515165015,"sku":"UGRT5010","price":10.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/UGR_Double-sided_jointing_Tape.jpg?v=1787278402"},{"product_id":"high-strength-membrane-adhesive-310ml-cartridge","title":"High Strength Membrane Adhesive - 310ml Cartridge","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003ch3\u003eHigh-strength elastic membrane adhesive\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh Strength Membrane Adhesive\u003c\/span\u003e is a powerful professional adhesive for bonding and sealing compatible plastic membranes.\u003c\/p\u003e\n\u003cp\u003eIts solvent-containing formulation provides extremely high adhesion, while a specialist rubber component allows the completed bond to remain permanently elastic. This makes it particularly useful where membrane overlaps, penetrations and other details require a flexible cartridge-applied adhesive rather than jointing tape.\u003c\/p\u003e\n\u003ch3\u003eSuitable membrane materials\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh Strength Membrane Adhesive\u003c\/span\u003e is suitable for compatible membranes manufactured from:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePolyethylene – PE\u003c\/li\u003e\n\u003cli\u003ePolypropylene – PP\u003c\/li\u003e\n\u003cli\u003eHigh-density polyethylene – HDPE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt can therefore be used with many common building membranes, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGreen roof membranes\u003c\/li\u003e\n\u003cli\u003eRoot-barrier membranes\u003c\/li\u003e\n\u003cli\u003eProtection and drainage membranes\u003c\/li\u003e\n\u003cli\u003eGeotextile membranes\u003c\/li\u003e\n\u003cli\u003eDamp-proof membranes\u003c\/li\u003e\n\u003cli\u003eCavity-drain membranes\u003c\/li\u003e\n\u003cli\u003eRoof-breather membranes\u003c\/li\u003e\n\u003cli\u003eRoofing membranes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatibility and bonding performance should always be tested before the main installation begins.\u003c\/p\u003e\n\u003ch3\u003eGreen roof applications\u003c\/h3\u003e\n\u003cp\u003eWithin a green roof system, \u003cspan\u003eHigh Strength Membrane Adhesive\u003c\/span\u003e can be used for compatible details such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBonding overlapping membrane areas\u003c\/li\u003e\n\u003cli\u003eSealing unavoidable service penetrations\u003c\/li\u003e\n\u003cli\u003eDetailing around roof features and changes in direction\u003c\/li\u003e\n\u003cli\u003eJoining suitable drainage membranes\u003c\/li\u003e\n\u003cli\u003eSecuring compatible membrane details where tape is impractical\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe UGR Green Roof Root Barrier datasheet specifically permits \u003cspan\u003eHigh Strength Membrane Adhesive\u003c\/span\u003e for sealing unavoidable service penetrations through the root barrier — see the \u003ca href=\"\/products\/green-roof-root-barrier\"\u003eUGR Green Roof Root Barrier\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eIt may also be used as an alternative jointing method for compatible overlaps in the \u003ca href=\"\/products\/20mm-deck-wall-drainage-membrane-2m-x-10m\"\u003eUGR 20mm Deck \u0026amp; Wall Drainage Membrane\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhen to use adhesive rather than tape\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh Strength Membrane Adhesive\u003c\/span\u003e is supplied in a cartridge and applied as a bead. This makes it useful around irregular shapes, penetrations and details where applying a continuous strip of tape may be difficult.\u003c\/p\u003e\n\u003cp\u003eFor straightforward membrane overlaps, the \u003ca href=\"\/products\/membrane-jointing-tape-50mm-x-10m\"\u003eUGR Membrane Jointing Tape 50mm x 10m\u003c\/a\u003e or \u003ca href=\"\/products\/root-barrier-overtape-300mm-x-20m\"\u003eUGR Root Barrier Overtape - 300mm x 20m\u003c\/a\u003e may be more appropriate. The appropriate method depends on the membrane, joint design and required system specification.\u003c\/p\u003e\n\u003ch3\u003ePreparing the membranes\u003c\/h3\u003e\n\u003cp\u003eCorrect preparation is essential for achieving a reliable bond. Before application:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eConfirm that both membranes or substrates are compatible with \u003cspan\u003eHigh Strength Membrane Adhesive\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003eTest the adhesive on a small area before completing the main installation.\u003c\/li\u003e\n\u003cli\u003eMake sure all surfaces are completely dry.\u003c\/li\u003e\n\u003cli\u003eRemove dust, dirt, debris, oil and grease.\u003c\/li\u003e\n\u003cli\u003ePosition and secure the membranes before bonding.\u003c\/li\u003e\n\u003cli\u003eMake sure the overlap is flat, free from wrinkles and not under tension.\u003c\/li\u003e\n\u003cli\u003ePlan the joint so that the cured adhesive will not be subjected to unnecessary peeling or shear stress.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eApplying \u003cspan\u003eHigh Strength Membrane Adhesive\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePrepare the cartridge for use in accordance with the product instructions.\u003c\/li\u003e\n\u003cli\u003eApply a continuous bead to one of the prepared membrane surfaces.\u003c\/li\u003e\n\u003cli\u003eBring the second membrane into position without stretching or pulling it.\u003c\/li\u003e\n\u003cli\u003ePress the two surfaces firmly together.\u003c\/li\u003e\n\u003cli\u003eUse a roller or similar suitable tool to distribute pressure evenly along the joint.\u003c\/li\u003e\n\u003cli\u003eCheck that the bond is continuous and that no gaps or creases remain.\u003c\/li\u003e\n\u003cli\u003eKeep the membrane free from tension, peeling and shear stress while the adhesive strength develops.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe bond strength builds gradually over time. Do not introduce tension afterwards — for example, when mounting battens beneath a vapour-control layer to prevent sagging.\u003c\/p\u003e\n\u003ch3\u003ePermanently flexible adhesion\u003c\/h3\u003e\n\u003cp\u003eUnlike a rigid adhesive, \u003cspan\u003eHigh Strength Membrane Adhesive\u003c\/span\u003e remains elastic after application.\u003c\/p\u003e\n\u003cp\u003eThis allows the completed joint to accommodate normal movement within a correctly installed membrane system while maintaining close contact between the bonded surfaces.\u003c\/p\u003e\n\u003ch3\u003eImportant professional-use warning\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh Strength Membrane Adhesive\u003c\/span\u003e is for professional use only.\u003c\/p\u003e\n\u003cp\u003eIt contains solvents and is based on a highly flammable liquid and vapour. It can also cause serious eye irritation.\u003c\/p\u003e\n\u003cp\u003eDuring use:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKeep away from heat, sparks, flames and hot surfaces.\u003c\/li\u003e\n\u003cli\u003eDo not smoke near the product.\u003c\/li\u003e\n\u003cli\u003eUse outdoors or in a well-ventilated area.\u003c\/li\u003e\n\u003cli\u003eAvoid breathing the vapours.\u003c\/li\u003e\n\u003cli\u003ePrevent contact with the eyes.\u003c\/li\u003e\n\u003cli\u003eUse suitable personal protective equipment.\u003c\/li\u003e\n\u003cli\u003eFollow all instructions and safety warnings supplied with the product.\u003c\/li\u003e\n\u003cli\u003eKeep out of the reach of children.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant suitability note\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh Strength Membrane Adhesive\u003c\/span\u003e is a bonding and sealing accessory. It does not replace the primary waterproofing, root barrier or drainage membrane within a green roof system.\u003c\/p\u003e\n\u003cp\u003eDo not assume that it will bond successfully to every plastic, coating or treated surface. Carry out an on-site adhesion test before completing the installation.\u003c\/p\u003e\n\u003cp\u003eFor standard straight overlaps where a tape-based joint is specified, consider the \u003ca href=\"\/products\/membrane-jointing-tape-50mm-x-10m\"\u003eUGR Membrane Jointing Tape 50mm x 10m\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 31.4509%;\"\u003e Product name\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 68.4622%;\"\u003e PM Power Fix – Super Strength Membrane Adhesive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 31.4509%;\"\u003e Product type\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 68.4622%;\"\u003e Elastic membrane adhesive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 31.4509%;\"\u003e Pack size\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 68.4622%;\"\u003e 310ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 31.4509%;\"\u003e Application format\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 68.4622%;\"\u003e Cartridge-applied adhesive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 31.4509%;\"\u003e Compatible materials\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 68.4622%;\"\u003e PE, PP and HDPE membranes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 31.4509%;\"\u003e Bond characteristics\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 68.4622%;\"\u003e Extremely high adhesion; permanently elastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 31.4509%;\"\u003e User classification\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 68.4622%;\"\u003e Professional use only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 31.4509%;\"\u003e Hazards\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 68.4622%;\"\u003e Highly flammable liquid and vapour; causes serious eye irritation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top; width: 31.4509%;\"\u003e Application environment\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px; width: 68.4622%;\"\u003e Outdoors or well-ventilated area\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4\u003eWhich membrane materials can High Strength Membrane Adhesive bond?\u003c\/h4\u003e\n\u003cp\u003eCompatible PE, PP and HDPE membranes. Always test adhesion before the main installation.\u003c\/p\u003e\n\u003ch4\u003eDoes the adhesive remain flexible?\u003c\/h4\u003e\n\u003cp\u003eYes. Its rubber component keeps the bond permanently elastic.\u003c\/p\u003e\n\u003ch4\u003eCan it be used with a green roof root barrier?\u003c\/h4\u003e\n\u003cp\u003eYes, for compatible details including sealing unavoidable service penetrations. Follow the membrane's method and test first.\u003c\/p\u003e\n\u003ch4\u003eIs High Strength Membrane Adhesive suitable for DIY use?\u003c\/h4\u003e\n\u003cp\u003eNo. It is a professional-use product — solvent-containing, flammable vapour, and requires ventilation and PPE.\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed help detailing a membrane joint?\u003c\/h3\u003e\n\u003cp\u003eUnsure whether your project requires High Strength Membrane Adhesive, double-sided jointing tape or wide overtape? Our in-house technical team can provide free guidance on choosing a compatible sealing method for your green roof membranes and details.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":54207516344663,"sku":"UGRPF310","price":10.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/pm_power_fix_fw.jpg?v=1785665909"},{"product_id":"20mm-deck-wall-drainage-membrane-2m-x-10m","title":"UGR 20mm Deck \u0026 Wall Drainage Membrane 2m x 10m","description":"\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eHigh-performance drainage for green roofs and landscaped decks\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe two-layer membrane combines a water-impermeable 20mm studded HDPE core with a polypropylene geotextile permanently bonded to its surface. Water passes through the filter fabric into the deep drainage cavity, where it can move freely towards the roof outlets or drainage system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe geotextile helps prevent soil fines and other small particles from entering and obstructing the drainage space, maintaining effective water movement beneath the green roof or landscaping build-up.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eDesigned for demanding loads\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUGR 20mm Deck \u0026amp; Wall Drainage Membrane has a compressive strength of approximately \u003c\/span\u003e\u003cspan\u003e240kN\/m²\u003c\/span\u003e\u003cspan\u003e, equivalent to a pressure resistance of up to approximately 24 tonnes per square metre when correctly installed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIts stud profile distributes loads across the surface beneath it, making the membrane suitable for correctly designed systems incorporating:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eIntensive green roofs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRoof gardens\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eDeep growing substrates\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cspan\u003eWalkable decks and patios\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eDrivable deck paving\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eHard landscaping\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eLandscaped roofs above underground car parks\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eOther heavily loaded roof build-ups\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe complete structure, surfacing and supporting layers must still be designed for the anticipated loading and traffic.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eFast drainage through a 20mm cavity\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe deep studded profile creates approximately \u003c\/span\u003e\u003cspan\u003e14 litres of open air space per square metre\u003c\/span\u003e\u003cspan\u003e beneath the geotextile.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis provides a water-drainage capacity of approximately \u003c\/span\u003e\u003cspan\u003e9.28l\/(s·m) at 20kPa\u003c\/span\u003e\u003cspan\u003e, helping move excess water away from the planted or paved surface.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe product’s drainage capacity is stated as approximately 30 times higher than the requirement of drainage standard DIN 4095.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eIntegrated filtration layer\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe bonded polypropylene geotextile:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eAllows water to enter the drainage cavity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eFilters soil, substrate fines and other small particles\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eHelps prevent blockage of the drainage space\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eResists significant deformation as working loads increase\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRemains securely positioned during installation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRemoves the need for a loose filter fabric directly above the membrane\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFor horizontal green roof and landscaping applications, the geotextile faces upwards towards the substrate, gravel or overlying construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eSuitable applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUGR 20mm Deck \u0026amp; Wall Drainage Membrane can be used for horizontal drainage within:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eIntensive green roofs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRoof gardens\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eLandscaped podiums and decks\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eWalkable and drivable paving systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003ePatios over suitable waterproofed structures\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eEarth-retaining roofs above underground car parks\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eOther hard and soft landscaping build-ups\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIt may also be installed vertically as a protection and drainage layer over primary external waterproofing on below-ground walls.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWhere this membrane fits in a green roof\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eA typical horizontal build-up may include:\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eStructural roof deck\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003ePrimary waterproofing and any specified gas or radon barrier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRoot barrier, where required\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eProtection layer, where specified\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003eUGR 20mm Deck \u0026amp; Wall Drainage Membrane\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eGrowing substrate, aggregate or specified landscaping build-up\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eVegetation, paving or another compatible finish\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eWhere separate root protection is required, install \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"https:\/\/urbangreenroofs.com\/products\/green-roof-root-barrier\"\u003eUGR Green Roof Root Barrier\u003c\/a\u003e.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eHorizontal installation\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe surface to be drained should have a fall of at least \u003c\/span\u003e\u003cspan\u003e2.2%\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eComplete the primary waterproofing and any required root barrier or protection layers.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBegin at the lowest part of the roof or deck fall.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRoll out UGR 20mm Deck \u0026amp; Wall Drainage Membrane with the bonded geotextile facing upwards.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003ePull back the loose geotextile edge to expose the dimpled membrane.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eApply compatible jointing tape or a bead of membrane adhesive between the first and second rows of studs.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003ePosition the next roll above the first, overlapping approximately three rows of studs.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003ePress the connection firmly together and return the geotextile over the joint.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eAt perimeter walls, rooflights and other upstands, take the membrane up by at least 150mm or to the upper edge of the finished substrate or infill.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eComplete the roof with the specified growing substrate, gravel or landscaping build-up.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFor jointing adjoining sheets, use \u003ca href=\"https:\/\/urbangreenroofs.com\/products\/membrane-jointing-tape-50mm-x-10m\"\u003eUGR Membrane Jointing Tape\u003c\/a\u003e. Alternatively, where appropriate, consider \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"https:\/\/urbangreenroofs.com\/products\/high-strength-membrane-adhesive-310ml-cartridge\"\u003eHigh Strength Membrane Adhesive\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eVertical below-ground installation\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUGR 20mm Deck \u0026amp; Wall Drainage Membrane may also protect and drain external below-ground waterproofing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe black drainage core is positioned against the waterproofed wall, with the geotextile facing outwards towards the backfill.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFor walls below 2m high, the 2m-wide membrane can potentially be installed horizontally without an intermediate lap. On taller walls, it should be cut into vertical sheets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAdjoining sheets are overlapped so that the geotextile continues over the preceding drainage core. One to three rows of studs can be interlocked to help keep the rolls aligned, with the flat edge flange sealed using compatible tape.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe membrane should connect to a suitably designed and maintainable land drain or French drain at foundation level. The upper edge must be capped to prevent debris and backfill entering the drainage cavity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eLong-lasting and resistant\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUGR 20mm Deck \u0026amp; Wall Drainage Membrane is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eChemically resistant\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eSuitable for temperatures from -30°C to +80°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eSafe for contact with drinking water\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eFire classified as Class E\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eGuaranteed against deterioration for 30 years\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eTested and CE marked to the relevant standard\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe membrane is manufactured from virgin HDPE, with a bonded polypropylene geotextile.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eImportant suitability note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUGR 20mm Deck \u0026amp; Wall Drainage Membrane is a \u003c\/span\u003e\u003cspan\u003eprotection and drainage membrane\u003c\/span\u003e\u003cspan\u003e, not a primary waterproofing membrane.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIt must be installed above a suitable, fully bonded waterproofing system. For below-ground structures, the complete design should form an appropriate Type A barrier system in accordance with BS 8102:2022.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIt is also primarily designed to drain water rather than retain it for vegetation. For a green roof membrane with dedicated water-storage capacity, consider \u003c\/span\u003e\u003ca href=\"https:\/\/urbangreenroofs.com\/products\/20mm-storage-drainage-membrane-2m-x-10m\" style=\"font-size: 0.875rem;\"\u003eUGR 20mm Storage \u0026amp; Drainage Membrane\u003c\/a\u003e, \u003cspan\u003e\u003ca href=\"https:\/\/urbangreenroofs.com\/products\/40mm-storage-drainage-board-1m-x-2m\"\u003eUGR 40mm Storage \u0026amp; Drainage Board\u003c\/a\u003e or \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"https:\/\/urbangreenroofs.com\/products\/60mm-storage-drainage-board-1m-x-2m\"\u003eUGR 60mm Storage \u0026amp; Drainage Board\u003c\/a\u003e.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Material\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Virgin HDPE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Membrane weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Approx. 1,000g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Geotextile\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Polypropylene, approx. 100g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Total weight\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Approx. 1,100g\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Stud height\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Approx. 20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Number of studs\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Approx. 400\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Colour\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Roll dimensions\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e 2m x 10m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Coverage\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e 20m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Compressive strength\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Approx. 240kN\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Max pressure load\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Approx. 24 tonnes\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Water-drainage capacity\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Approx. 9.28l\/(s·m) at 20kPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Air volume between studs\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Approx. 14l\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Temperature resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e -30°C to +80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Characteristic opening width\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Approx. 170μm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Water permeability\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Approx. 100 × 10⁻³m\/s (EN ISO 11058)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Fire resistance\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Class E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Chemical properties\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Chemically resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Drinking-water safe\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Yes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Accreditation\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e Tested and CE marked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 12px 6px 0px; vertical-align: top;\"\u003e Guarantee\u003c\/th\u003e\n\u003ctd style=\"padding: 6px 0px;\"\u003e 30 years against deterioration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch6\u003eFAQs\u003c\/h6\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eDoes UGR 20mm Deck \u0026amp; Wall Drainage Membrane waterproof the roof?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eNo. It is a protection and drainage layer that must be installed above a suitable primary waterproofing system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eDoes it include a filter layer?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eYes. A polypropylene geotextile is permanently bonded to the studded membrane, helping prevent soil and other small particles from blocking the drainage cavity.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eWhich way up should the membrane be installed?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eFor horizontal green roof and deck applications, install it with the geotextile facing upwards. On external walls, the black drainage core faces the waterproofed wall and the geotextile faces the backfill.\u003c\/p\u003e\n\u003ch4\u003eCan it be used for both extensive and intensive green roofs?\u003c\/h4\u003e\n\u003cp\u003eYes, subject to overall system design, structural loading and planting requirements.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eDoes UGR 20mm Deck \u0026amp; Wall Drainage Membrane store water for plants?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003eIts primary function is rapid drainage and protection rather than dedicated plant-water storage. For water retention, consider \u003ca href=\"https:\/\/urbangreenroofs.com\/products\/20mm-storage-drainage-membrane-2m-x-10m\"\u003eUGR 20mm Storage \u0026amp; Drainage Membrane\u003c\/a\u003e, \u003ca href=\"https:\/\/urbangreenroofs.com\/products\/40mm-storage-drainage-board-1m-x-2m\"\u003eUGR 40mm Storage \u0026amp; Drainage Board\u003c\/a\u003e or \u003ca href=\"https:\/\/urbangreenroofs.com\/products\/60mm-storage-drainage-board-1m-x-2m\"\u003eUGR 60mm Storage \u0026amp; Drainage Board\u003c\/a\u003e depending on the project build-up.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eHelp\u003c\/h6\u003e\n\u003ch3\u003eNeed help comparing the drainage membranes?\u003c\/h3\u003e\n\u003cp\u003eNot sure whether the UGR 20mm's 6l\/m² storage capacity is right for your planting, or whether a lower- or higher-capacity membrane would better suit the roof? Our in-house technical team can provide free advice on product selection, roof build-up and compatible supporting layers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:info@urbangreenroofs.com\" title=\"mailto:info@urbangreenroofs.com\"\u003einfo@urbangreenroofs.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTelephone:\u003c\/strong\u003e \u003ca href=\"tel:+44%20117%20370%204018\" title=\"tel:+44 117 370 4018\"\u003e+44 117 370 4018\u003c\/a\u003e\u003c\/p\u003e","brand":"Urban Green Roofs","offers":[{"title":"Default Title","offer_id":54857459695959,"sku":"UGR20DWDM20","price":187.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/files\/PermaSEAL_20_Geodrain_Main_Image_1000_x_1000.jpg?v=1788425451"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/0150\/9207\/collections\/signup-banner.jpg?v=1786087035","url":"https:\/\/urbangreenroofs.com\/collections\/all.oembed","provider":"Urban Green Roofs","version":"1.0","type":"link"}