{"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","url":"https:\/\/urbangreenroofs.com\/products\/green-roof-border-pebbles","provider":"Urban Green Roofs","version":"1.0","type":"link"}