{"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 Gold\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":"Buy 6 x Rolls 30% off a roll","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\/UGR_11_Deck_Drain_Membrane_Close_up.jpg?v=1788432033","url":"https:\/\/urbangreenroofs.com\/products\/11mm-deck-drainage-membrane-2m-x-15m","provider":"Urban Green Roofs","version":"1.0","type":"link"}