{"product_id":"riw-r7-cavity-drain-2-07m-x-20m","title":"RIW R7 Cavity Drain 2.07m x 20m","description":"\u003ch2 data-section-id=\"1if0d2f\" data-start=\"0\" data-end=\"49\" class=\"PDq2pG_selectionAnchorContainer\"\u003eRIW Cavity Drain R7 Basement Drainage Membrane\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"51\" data-end=\"583\"\u003eRIW Cavity Drain R7 is a high-performance Type C cavity drainage membrane manufactured from virgin high-density polyethylene (HDPE). Featuring 8mm studs and a robust profiled design, it creates a permanent drainage cavity that safely collects and channels water to a suitable drainage system, helping to keep below-ground structures dry. Ideal for basement waterproofing, cellar conversions and retaining walls, it can be installed onto concrete and masonry substrates, including damp surfaces.\u003c\/p\u003e\n\u003cp data-start=\"585\" data-end=\"1156\"\u003eDesigned in accordance with BS 8102 Type C waterproofing principles, Cavity Drain R7 provides effective protection for Grade 1, Grade 2 and Grade 3 basement environments when installed as part of a complete maintainable drainage system. Manufactured from durable virgin HDPE, it offers excellent compressive strength, high drainage capacity and long-term resistance to chemicals, making it suitable for new build and refurbishment projects. It can also be combined with Type A or Type B waterproofing systems for enhanced protection.\u003c\/p\u003e\n\u003cp data-start=\"585\" data-end=\"1156\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/RIWR7CavityDrain2.07mx20m.png?v=1784559844\" alt=\"RIW Cavity Drain R7 membrane\"\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"17xbmye\" data-start=\"1158\" data-end=\"1173\"\u003eKey Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1175\" data-end=\"1598\"\u003e\n\u003cli data-section-id=\"1iteur3\" data-start=\"1175\" data-end=\"1208\"\u003eType C cavity drainage membrane\u003c\/li\u003e\n\u003cli data-section-id=\"1winany\" data-start=\"1209\" data-end=\"1256\"\u003eHigh-density polyethylene (HDPE) construction\u003c\/li\u003e\n\u003cli data-section-id=\"tks1o\" data-start=\"1257\" data-end=\"1298\"\u003e8mm stud profile for efficient drainage\u003c\/li\u003e\n\u003cli data-section-id=\"uuu70h\" data-start=\"1299\" data-end=\"1323\"\u003eHigh drainage capacity\u003c\/li\u003e\n\u003cli data-section-id=\"7gjuqn\" data-start=\"1324\" data-end=\"1351\"\u003eHigh compressive strength\u003c\/li\u003e\n\u003cli data-section-id=\"1cixsvq\" data-start=\"1352\" data-end=\"1381\"\u003eSuitable for wet substrates\u003c\/li\u003e\n\u003cli data-section-id=\"yg513f\" data-start=\"1382\" data-end=\"1423\"\u003eResistant to chemicals and contaminants\u003c\/li\u003e\n\u003cli data-section-id=\"1wdzf4p\" data-start=\"1424\" data-end=\"1443\"\u003eLong service life\u003c\/li\u003e\n\u003cli data-section-id=\"1wqcnek\" data-start=\"1444\" data-end=\"1461\"\u003eEasy to install\u003c\/li\u003e\n\u003cli data-section-id=\"1527jmf\" data-start=\"1462\" data-end=\"1504\"\u003eSuitable for new build and refurbishment\u003c\/li\u003e\n\u003cli data-section-id=\"1imxual\" data-start=\"1505\" data-end=\"1559\"\u003eCan be combined with Type A and Type B waterproofing\u003c\/li\u003e\n\u003cli data-section-id=\"f7ot7m\" data-start=\"1560\" data-end=\"1574\"\u003eBBA Approved\u003c\/li\u003e\n\u003cli data-section-id=\"1vehek0\" data-start=\"1575\" data-end=\"1598\"\u003eCE Marked to EN 13967\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"mu966k\" data-start=\"1600\" data-end=\"1615\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-start=\"1617\" data-end=\"1849\"\u003e\n\u003cli data-section-id=\"sbdkou\" data-start=\"1617\" data-end=\"1641\"\u003eBasement waterproofing\u003c\/li\u003e\n\u003cli data-section-id=\"ofvxee\" data-start=\"1642\" data-end=\"1662\"\u003eCellar conversions\u003c\/li\u003e\n\u003cli data-section-id=\"1khwdug\" data-start=\"1663\" data-end=\"1688\"\u003eBelow ground structures\u003c\/li\u003e\n\u003cli data-section-id=\"p2222w\" data-start=\"1689\" data-end=\"1706\"\u003eRetaining walls\u003c\/li\u003e\n\u003cli data-section-id=\"1d24ua2\" data-start=\"1707\" data-end=\"1723\"\u003eConcrete walls\u003c\/li\u003e\n\u003cli data-section-id=\"1q3wvo8\" data-start=\"1724\" data-end=\"1739\"\u003eMasonry walls\u003c\/li\u003e\n\u003cli data-section-id=\"sutm0n\" data-start=\"1740\" data-end=\"1775\"\u003eType C drained protection systems\u003c\/li\u003e\n\u003cli data-section-id=\"m8fpwk\" data-start=\"1776\" data-end=\"1801\"\u003eBasement floor drainage\u003c\/li\u003e\n\u003cli data-section-id=\"vu3u8f\" data-start=\"1802\" data-end=\"1822\"\u003eWall waterproofing\u003c\/li\u003e\n\u003cli data-section-id=\"125m0h0\" data-start=\"1823\" data-end=\"1849\"\u003eStructural waterproofing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1uhri7u\" data-start=\"1851\" data-end=\"1875\"\u003eTechnical Information\u003c\/h3\u003e\n\u003cul data-start=\"1877\" data-end=\"2363\"\u003e\n\u003cli data-section-id=\"9mdh38\" data-start=\"1877\" data-end=\"1922\"\u003eProduct Type: HDPE cavity drainage membrane\u003c\/li\u003e\n\u003cli data-section-id=\"mf39qf\" data-start=\"1923\" data-end=\"1967\"\u003eMaterial: Virgin high-density polyethylene\u003c\/li\u003e\n\u003cli data-section-id=\"1o9nwh1\" data-start=\"1968\" data-end=\"1989\"\u003eColour: Translucent\u003c\/li\u003e\n\u003cli data-section-id=\"13mhsfj\" data-start=\"1990\" data-end=\"2008\"\u003eThickness: 0.5mm\u003c\/li\u003e\n\u003cli data-section-id=\"1qe0y2r\" data-start=\"2009\" data-end=\"2027\"\u003eStud Height: 8mm\u003c\/li\u003e\n\u003cli data-section-id=\"v1mffx\" data-start=\"2028\" data-end=\"2049\"\u003eRoll Size: 2m × 20m\u003c\/li\u003e\n\u003cli data-section-id=\"3rmvlp\" data-start=\"2050\" data-end=\"2075\"\u003eCoverage per Roll: 40m²\u003c\/li\u003e\n\u003cli data-section-id=\"10uu1to\" data-start=\"2076\" data-end=\"2095\"\u003eWeight: 0.48kg\/m²\u003c\/li\u003e\n\u003cli data-section-id=\"1vflvsd\" data-start=\"2096\" data-end=\"2146\"\u003eMaximum Drainage Capacity: 2.25 litres\/sec\/metre\u003c\/li\u003e\n\u003cli data-section-id=\"7ep71d\" data-start=\"2147\" data-end=\"2187\"\u003eMaximum Compressive Strength: 250kN\/m²\u003c\/li\u003e\n\u003cli data-section-id=\"iwsaxz\" data-start=\"2188\" data-end=\"2225\"\u003eWorking Temperature: -30°C to +60°C\u003c\/li\u003e\n\u003cli data-section-id=\"1wkch9v\" data-start=\"2226\" data-end=\"2242\"\u003eSide Lap: 70mm\u003c\/li\u003e\n\u003cli data-section-id=\"7ni8oi\" data-start=\"2243\" data-end=\"2259\"\u003eEnd Lap: 200mm\u003c\/li\u003e\n\u003cli data-section-id=\"k6kcsc\" data-start=\"2260\" data-end=\"2304\"\u003eCertification: BBA Certificate No. 05\/4232\u003c\/li\u003e\n\u003cli data-section-id=\"10a7xmt\" data-start=\"2305\" data-end=\"2363\"\u003eStandard: EN 13967\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1r8frcv\" data-start=\"2365\" data-end=\"2394\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp data-start=\"2396\" data-end=\"2437\"\u003e\u003cstrong data-start=\"2396\" data-end=\"2437\"\u003eWhat is RIW Cavity Drain R7 used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2439\" data-end=\"2576\"\u003eIt is a Type C cavity drainage membrane designed to collect and direct water from below-ground walls into a maintainable drainage system.\u003c\/p\u003e\n\u003cp data-start=\"2578\" data-end=\"2618\"\u003e\u003cstrong data-start=\"2578\" data-end=\"2618\"\u003eCan it be installed onto damp walls?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2620\" data-end=\"2700\"\u003eYes. Cavity Drain R7 can be installed onto damp concrete and masonry substrates.\u003c\/p\u003e\n\u003cp data-start=\"2702\" data-end=\"2746\"\u003e\u003cstrong data-start=\"2702\" data-end=\"2746\"\u003eIs it suitable for basement conversions?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2748\" data-end=\"2911\"\u003eYes. It is designed for basement waterproofing and can provide Grade 1, 2 and 3 protection when incorporated into a correctly designed Type C waterproofing system.\u003c\/p\u003e\n\u003cp data-start=\"2913\" data-end=\"2965\"\u003e\u003cstrong data-start=\"2913\" data-end=\"2965\"\u003eCan it be used with other waterproofing systems?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2967\" data-end=\"3089\"\u003eYes. It can be combined with Type A or Type B waterproofing systems to provide dual or combined protection where required.\u003c\/p\u003e\n\u003cp data-start=\"3091\" data-end=\"3128\"\u003e\u003cstrong data-start=\"3091\" data-end=\"3128\"\u003eIs RIW Cavity Drain R7 certified?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3130\" data-end=\"3256\"\u003eYes. It is BBA Approved and CE Marked to EN 13967 for use as a cavity drainage membrane.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1dnzvko\" data-start=\"0\" data-end=\"53\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eDownloads\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-end=\"3050\" data-start=\"2932\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/RIW_CAVITY_DRAIN_R7_2021-03-15.pdf?v=1784559917\" title=\"RIW R7 Cavity Drain Data Sheet\"\u003eData Sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"RIW","offers":[{"title":"2.07m x 20m","offer_id":57313109377399,"sku":"RIWR7CD2.07X20","price":500.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/RIWR7CavityDrain2.07mx20m.png?v=1784559844","url":"https:\/\/clevershieldcoatings.co.uk\/products\/riw-r7-cavity-drain-2-07m-x-20m","provider":"Clever Shield - Asset Protection","version":"1.0","type":"link"}