{"product_id":"cleverdrain-green-roof-membrane-with-water-retention-syestem","title":"Clever Shield Roof Drain Green Roof Drainage\/ Water Retention Layer (46m2)","description":"\u003cdiv style=\"text-align: left;\"\u003e\n\u003ch2 data-end=\"190\" data-start=\"130\" data-section-id=\"16c9ild\"\u003eClever Shield Roof Drain Green Roof Drainage Layer (HDPE Geotextile)\u003c\/h2\u003e\n\u003cp data-end=\"416\" data-start=\"192\"\u003eThe \u003cstrong data-end=\"237\" data-start=\"196\"\u003eCleverDrain Green Roof Drainage Layer\u003c\/strong\u003e is a high-performance \u003cstrong data-end=\"296\" data-start=\"260\"\u003eHDPE geotextile drainage board\u003c\/strong\u003e designed for efficient water management, water attenuation, and long-term roof protection in modern green roof systems.\u003c\/p\u003e\n\u003cp data-end=\"416\" data-start=\"192\"\u003e\u003cimg style=\"float: none;\" alt=\"Green roof drainage layer HDPE geocomposite board with water retention and drainage core\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/CleverDrain_Green_Roof_Drainage_Layer_with_Water_Retention_Syestem_2m_x_10m.png?v=1777398968\"\u003e\u003c\/p\u003e\n\u003cp data-end=\"666\" data-start=\"418\"\u003eEngineered specifically for \u003cstrong data-end=\"471\" data-start=\"446\"\u003eextensive green roofs\u003c\/strong\u003e, this advanced drainage layer delivers the perfect balance of \u003cstrong data-end=\"572\" data-start=\"534\"\u003ewater retention and rapid drainage\u003c\/strong\u003e, helping vegetation thrive while preventing waterlogging, root damage, and structural stress.\u003c\/p\u003e\n\u003cp data-end=\"900\" data-start=\"668\"\u003eIdeal for commercial, residential, and infrastructure projects, CleverDrain provides a \u003cstrong data-end=\"830\" data-start=\"755\"\u003elightweight, cost-effective alternative to traditional drainage systems\u003c\/strong\u003e, reducing installation time while improving overall roof performance.\u003c\/p\u003e\n\u003chr data-end=\"905\" data-start=\"902\"\u003e\n\u003ch3 data-end=\"934\" data-start=\"907\" data-section-id=\"1hr7cft\"\u003eWhy Choose CleverDrain?\u003c\/h3\u003e\n\u003cp data-end=\"1043\" data-start=\"936\"\u003eCleverDrain is designed to optimise \u003cstrong data-end=\"1042\" data-start=\"972\"\u003egreen roof drainage performance, water storage, and sustainability\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul data-end=\"1450\" data-start=\"1045\"\u003e\n\u003cli data-end=\"1117\" data-start=\"1045\" data-section-id=\"gb6iby\"\u003eMaintains consistent moisture levels to support healthy plant growth\u003c\/li\u003e\n\u003cli data-end=\"1176\" data-start=\"1118\" data-section-id=\"1p3h9n3\"\u003ePrevents waterlogging during periods of heavy rainfall\u003c\/li\u003e\n\u003cli data-end=\"1231\" data-start=\"1177\" data-section-id=\"ftgggb\"\u003eEnhances drainage efficiency in green roof systems\u003c\/li\u003e\n\u003cli data-end=\"1295\" data-start=\"1232\" data-section-id=\"18epq0h\"\u003eSupports \u003cstrong data-end=\"1282\" data-start=\"1243\"\u003eSustainable Drainage Systems (SuDS)\u003c\/strong\u003e compliance\u003c\/li\u003e\n\u003cli data-end=\"1343\" data-start=\"1296\" data-section-id=\"1xyj8g2\"\u003eReduces pressure on waterproofing membranes\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1344\" data-section-id=\"p8lesx\"\u003eLightweight design for faster, easier installation\u003c\/li\u003e\n\u003cli data-end=\"1450\" data-start=\"1399\" data-section-id=\"dsdmpt\"\u003eDurable \u003cstrong data-end=\"1422\" data-start=\"1409\"\u003eHDPE core\u003c\/strong\u003e for long-term reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1455\" data-start=\"1452\"\u003e\n\u003ch3 data-end=\"1473\" data-start=\"1457\" data-section-id=\"9kmvp5\"\u003eHow It Works\u003c\/h3\u003e\n\u003cp data-end=\"1561\" data-start=\"1475\"\u003eCleverDrain combines \u003cstrong data-end=\"1560\" data-start=\"1496\"\u003edrainage and water attenuation in a single integrated system\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul data-end=\"1807\" data-start=\"1563\"\u003e\n\u003cli data-end=\"1625\" data-start=\"1563\" data-section-id=\"h1qnin\"\u003eStores water within structured core nodes for plant uptake\u003c\/li\u003e\n\u003cli data-end=\"1686\" data-start=\"1626\" data-section-id=\"1myewx5\"\u003eAllows excess water to drain freely during peak rainfall\u003c\/li\u003e\n\u003cli data-end=\"1738\" data-start=\"1687\" data-section-id=\"g0p1lm\"\u003ePrevents both drought stress and oversaturation\u003c\/li\u003e\n\u003cli data-end=\"1807\" data-start=\"1739\" data-section-id=\"1c7jvyk\"\u003eProtects waterproofing layers from hydrostatic pressure build-up\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1889\" data-start=\"1809\"\u003eThis makes it ideal for \u003cstrong data-end=\"1888\" data-start=\"1833\"\u003esedum roofs, biodiverse roofs, and eco-roof systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr data-end=\"1894\" data-start=\"1891\"\u003e\n\u003ch3 data-end=\"1912\" data-start=\"1896\" data-section-id=\"wggvqn\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-end=\"2102\" data-start=\"1914\"\u003e\n\u003cli data-end=\"1946\" data-start=\"1914\" data-section-id=\"1jobsm2\"\u003eExtensive green roof systems\u003c\/li\u003e\n\u003cli data-end=\"1985\" data-start=\"1947\" data-section-id=\"4k7joo\"\u003eBrown roofs and biodiverse roofing\u003c\/li\u003e\n\u003cli data-end=\"2015\" data-start=\"1986\" data-section-id=\"vchy8f\"\u003eGreen bridges and tunnels\u003c\/li\u003e\n\u003cli data-end=\"2058\" data-start=\"2016\" data-section-id=\"9pen1g\"\u003ePodium decks and landscaped roof areas\u003c\/li\u003e\n\u003cli data-end=\"2102\" data-start=\"2059\" data-section-id=\"17uc6tg\"\u003eSuDS and stormwater attenuation systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2107\" data-start=\"2104\"\u003e\n\u003ch3 data-end=\"2128\" data-start=\"2109\" data-section-id=\"15mmvst\"\u003eProduct Options\u003c\/h3\u003e\n\u003cp data-end=\"2184\" data-start=\"2130\"\u003eSelect the correct drainage capacity for your project:\u003c\/p\u003e\n\u003cul data-end=\"2657\" data-start=\"2186\"\u003e\n\u003cli data-end=\"2267\" data-start=\"2186\" data-section-id=\"bc7lrf\"\u003e\n\u003cstrong data-end=\"2211\" data-start=\"2188\"\u003e20mm Drainage Layer\u003c\/strong\u003e – Suitable for shallow systems (up to 75mm substrate)\u003c\/li\u003e\n\u003cli data-end=\"2395\" data-start=\"2269\" data-section-id=\"azhiwf\"\u003e\n\u003cstrong data-end=\"2294\" data-start=\"2271\"\u003e25mm Drainage Layer\u003c\/strong\u003e \u003cem data-end=\"2328\" data-start=\"2295\"\u003e(Special Order – Call to Order)\u003c\/em\u003e\u003cbr data-end=\"2331\" data-start=\"2328\"\u003eStandard option for most green roofs (up to 150mm substrate)\u003c\/li\u003e\n\u003cli data-end=\"2522\" data-start=\"2397\" data-section-id=\"1qp8l86\"\u003e\n\u003cstrong data-end=\"2422\" data-start=\"2399\"\u003e40mm Drainage Layer\u003c\/strong\u003e \u003cem data-end=\"2456\" data-start=\"2423\"\u003e(Special Order – Call to Order)\u003c\/em\u003e\u003cbr data-end=\"2459\" data-start=\"2456\"\u003eIncreased water storage to support enhanced plant diversity\u003c\/li\u003e\n\u003cli data-end=\"2657\" data-start=\"2524\" data-section-id=\"azjr7o\"\u003e\n\u003cstrong data-end=\"2549\" data-start=\"2526\"\u003e60mm Drainage Layer\u003c\/strong\u003e \u003cem data-end=\"2583\" data-start=\"2550\"\u003e(Special Order – Call to Order)\u003c\/em\u003e\u003cbr data-end=\"2586\" data-start=\"2583\"\u003eHigh-capacity drainage and water attenuation (can be gravel-filled)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2662\" data-start=\"2659\"\u003e\n\u003ch3 data-end=\"2686\" data-start=\"2664\" data-section-id=\"3fcu1d\"\u003eTechnical Benefits\u003c\/h3\u003e\n\u003cul data-end=\"3007\" data-start=\"2688\"\u003e\n\u003cli data-end=\"2745\" data-start=\"2688\" data-section-id=\"ksj3gt\"\u003eHigh-performance \u003cstrong data-end=\"2743\" data-start=\"2707\"\u003ewater attenuation drainage board\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2798\" data-start=\"2746\" data-section-id=\"1lfvb1s\"\u003eOptimised \u003cstrong data-end=\"2796\" data-start=\"2758\"\u003egreen roof water management system\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2849\" data-start=\"2799\" data-section-id=\"r4or0n\"\u003eImproves roof lifespan and thermal performance\u003c\/li\u003e\n\u003cli data-end=\"2882\" data-start=\"2850\" data-section-id=\"ume7h9\"\u003eReduces surface water runoff\u003c\/li\u003e\n\u003cli data-end=\"2940\" data-start=\"2883\" data-section-id=\"cxrycj\"\u003eSupports sustainable construction and SuDS compliance\u003c\/li\u003e\n\u003cli data-end=\"3007\" data-start=\"2941\" data-section-id=\"8n7lmb\"\u003eCompatible with \u003cstrong data-end=\"3005\" data-start=\"2959\"\u003egeotextile membranes and filtration layers\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong data-end=\"3005\" data-start=\"2959\"\u003e\u003cimg alt=\"Clever Shield green roof drainage layer HDPE geotextile system showing water retention cells and drainage performance\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/clever_shield_green_roof_4.webp?v=1780566815\" style=\"margin-bottom: 16px; float: none;\" data-original=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/clever_shield_green_roof_4.png?v=1777557455\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-end=\"3012\" data-start=\"3009\"\u003e\n\u003ch3 data-end=\"3027\" data-start=\"3014\" data-section-id=\"1qmgibc\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul data-end=\"3187\" data-start=\"3029\"\u003e\n\u003cli data-end=\"3052\" data-start=\"3029\" data-section-id=\"16knn0g\"\u003eRoofing contractors\u003c\/li\u003e\n\u003cli data-end=\"3077\" data-start=\"3053\" data-section-id=\"13imfjj\"\u003eLandscape architects\u003c\/li\u003e\n\u003cli data-end=\"3103\" data-start=\"3078\" data-section-id=\"kr4zwi\"\u003eGreen roof installers\u003c\/li\u003e\n\u003cli data-end=\"3149\" data-start=\"3104\" data-section-id=\"1oycolf\"\u003eDevelopers and construction professionals\u003c\/li\u003e\n\u003cli data-end=\"3187\" data-start=\"3150\" data-section-id=\"151859k\"\u003eLocal authority and SuDS projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"3192\" data-start=\"3189\"\u003e\n\u003ch3 data-end=\"3224\" data-start=\"3194\" data-section-id=\"ul2pwc\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp data-end=\"3480\" data-start=\"3226\"\u003e\u003cstrong data-end=\"3266\" data-start=\"3226\"\u003eWhat is a green roof drainage layer?\u003c\/strong\u003e\u003cbr data-end=\"3269\" data-start=\"3266\"\u003eA green roof drainage layer is a \u003cstrong data-end=\"3334\" data-start=\"3302\"\u003egeocomposite drainage system\u003c\/strong\u003e installed beneath the growing medium to control water flow. It allows excess water to drain while retaining sufficient moisture for plant growth.\u003c\/p\u003e\n\u003chr data-end=\"3485\" data-start=\"3482\"\u003e\n\u003cp data-end=\"3694\" data-start=\"3487\"\u003e\u003cstrong data-end=\"3517\" data-start=\"3487\"\u003eHow does CleverDrain work?\u003c\/strong\u003e\u003cbr data-end=\"3520\" data-start=\"3517\"\u003eCleverDrain uses a structured \u003cstrong data-end=\"3563\" data-start=\"3550\"\u003eHDPE core\u003c\/strong\u003e to store water within its nodes while allowing excess water to drain efficiently, preventing both waterlogging and drought stress.\u003c\/p\u003e\n\u003chr data-end=\"3699\" data-start=\"3696\"\u003e\n\u003cp data-end=\"3888\" data-start=\"3701\"\u003e\u003cstrong data-end=\"3752\" data-start=\"3701\"\u003eIs a drainage layer necessary for a green roof?\u003c\/strong\u003e\u003cbr data-end=\"3755\" data-start=\"3752\"\u003eYes, a drainage layer is essential to ensure proper \u003cstrong data-end=\"3887\" data-start=\"3807\"\u003ewater management, plant health, and protection of the waterproofing membrane\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr data-end=\"3893\" data-start=\"3890\"\u003e\n\u003cp data-end=\"3932\" data-start=\"3895\"\u003e\u003cstrong data-end=\"3930\" data-start=\"3895\"\u003eWhat thickness should I choose?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"4143\" data-start=\"3934\"\u003e\n\u003cli data-end=\"3987\" data-start=\"3934\" data-section-id=\"1vujki9\"\u003e\n\u003cstrong data-end=\"3944\" data-start=\"3936\"\u003e20mm\u003c\/strong\u003e – Shallow systems (up to 75mm substrate)\u003c\/li\u003e\n\u003cli data-end=\"4043\" data-start=\"3988\" data-section-id=\"k2z66z\"\u003e\n\u003cstrong data-end=\"3998\" data-start=\"3990\"\u003e25mm\u003c\/strong\u003e – Standard systems (up to 150mm substrate)\u003c\/li\u003e\n\u003cli data-end=\"4102\" data-start=\"4044\" data-section-id=\"jvtcjo\"\u003e\n\u003cstrong data-end=\"4054\" data-start=\"4046\"\u003e40mm\u003c\/strong\u003e – Increased water storage and plant diversity\u003c\/li\u003e\n\u003cli data-end=\"4143\" data-start=\"4103\" data-section-id=\"hoxnrc\"\u003e\n\u003cstrong data-end=\"4113\" data-start=\"4105\"\u003e60mm\u003c\/strong\u003e – High-capacity attenuation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"4227\" data-start=\"4145\"\u003eThe correct option depends on \u003cstrong data-end=\"4226\" data-start=\"4175\"\u003eroof design, loading, and planting requirements\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr data-end=\"4232\" data-start=\"4229\"\u003e\n\u003cp data-end=\"4411\" data-start=\"4234\"\u003e\u003cstrong data-end=\"4271\" data-start=\"4234\"\u003eIs CleverDrain suitable for SuDS?\u003c\/strong\u003e\u003cbr data-end=\"4274\" data-start=\"4271\"\u003eYes, CleverDrain supports \u003cstrong data-end=\"4339\" data-start=\"4300\"\u003eSustainable Drainage Systems (SuDS)\u003c\/strong\u003e by reducing runoff, storing water, and managing stormwater effectively.\u003c\/p\u003e\n\u003chr data-end=\"4416\" data-start=\"4413\"\u003e\n\u003cp data-end=\"4558\" data-start=\"4418\"\u003e\u003cstrong data-end=\"4451\" data-start=\"4418\"\u003eCan it be used on flat roofs?\u003c\/strong\u003e\u003cbr data-end=\"4454\" data-start=\"4451\"\u003eYes, CleverDrain is suitable for \u003cstrong data-end=\"4517\" data-start=\"4487\"\u003eflat and low-pitched roofs\u003c\/strong\u003e, including green roofs and podium decks.\u003c\/p\u003e\n\u003chr data-end=\"4563\" data-start=\"4560\"\u003e\n\u003cp data-end=\"4722\" data-start=\"4565\"\u003e\u003cstrong data-end=\"4587\" data-start=\"4565\"\u003eIs it lightweight?\u003c\/strong\u003e\u003cbr data-end=\"4590\" data-start=\"4587\"\u003eYes, the \u003cstrong data-end=\"4633\" data-start=\"4599\"\u003eHDPE geocomposite construction\u003c\/strong\u003e makes it significantly lighter and easier to install than traditional aggregate systems.\u003c\/p\u003e\n\u003chr data-end=\"4727\" data-start=\"4724\"\u003e\n\u003cp data-end=\"4894\" data-start=\"4729\"\u003e\u003cstrong data-end=\"4762\" data-start=\"4729\"\u003eDoes it improve plant growth?\u003c\/strong\u003e\u003cbr data-end=\"4765\" data-start=\"4762\"\u003eYes, CleverDrain maintains balanced moisture levels, preventing drying out and waterlogging, which supports healthier vegetation.\u003c\/p\u003e\n\u003chr data-end=\"4899\" data-start=\"4896\"\u003e\n\u003cp data-end=\"5064\" data-start=\"4901\"\u003e\u003cstrong data-end=\"4947\" data-start=\"4901\"\u003eCan the 60mm system be filled with gravel?\u003c\/strong\u003e\u003cbr data-end=\"4950\" data-start=\"4947\"\u003eYes, the 60mm drainage layer can be infilled with gravel to increase water attenuation and structural performance.\u003c\/p\u003e\n\u003chr data-end=\"5069\" data-start=\"5066\"\u003e\n\u003cp data-end=\"5218\" data-start=\"5071\"\u003e\u003cstrong data-end=\"5103\" data-start=\"5071\"\u003eDo I need a filter membrane?\u003c\/strong\u003e\u003cbr data-end=\"5106\" data-start=\"5103\"\u003eYes, a \u003cstrong data-end=\"5140\" data-start=\"5113\"\u003egeotextile filter layer\u003c\/strong\u003e is recommended to prevent clogging and ensure long-term drainage performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Clever Shield","offers":[{"title":"Green Roof Geotextile Membrane (20mm) – 920mm x 50m","offer_id":57053025010039,"sku":"GREENROOFDRAIN46","price":649.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/CleverDrainGreenRoofDrainageLayerwithWaterRetentionSyestem2mx10m.webp?v=1780566809","url":"https:\/\/clevershieldcoatings.co.uk\/products\/cleverdrain-green-roof-membrane-with-water-retention-syestem","provider":"Clever Shield - Asset Protection","version":"1.0","type":"link"}