{"product_id":"riw-r20-cavity-drain-2m-x-20m","title":"RIW R20 Cavity Drain 2m x 20m","description":"\u003ch2 data-section-id=\"1ipt23x\" data-start=\"0\" data-end=\"61\"\u003eRIW Cavity Drain R20 Heavy Duty Basement Drainage Membrane\u003c\/h2\u003e\n\u003cp data-start=\"63\" data-end=\"661\"\u003eRIW Cavity Drain R20 is a heavy-duty Type C cavity drainage membrane manufactured from 1.0mm virgin high-density polyethylene (HDPE). Featuring a robust 20mm stud profile, it creates a high-capacity drainage cavity that safely collects and channels groundwater to a suitable drainage system, providing dependable waterproofing protection for basements, retaining walls and below-ground structures. Designed for projects requiring increased drainage performance, it is suitable for installation onto concrete, masonry and piled walls, including damp substrates.\u003c\/p\u003e\n\u003cp data-start=\"663\" data-end=\"1207\"\u003eDesigned in accordance with BS 8102 Type C waterproofing principles, Cavity Drain R20 provides effective protection for Grade 1, Grade 2 and Grade 3 basements when installed as part of a fully maintainable drainage system. Its large stud profile delivers exceptional drainage capacity while maintaining excellent compressive strength and long-term durability. The membrane can also be incorporated alongside Type A or Type B waterproofing systems to create combined waterproofing protection where required.\u003c\/p\u003e\n\u003cp data-start=\"663\" data-end=\"1207\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/RIWR20CavityDrain2mx20m.png?v=1784560108\" alt=\"RIW Cavity Drain R20 membrane\"\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"17xbmye\" data-start=\"1209\" data-end=\"1224\"\u003eKey Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1226\" data-end=\"1678\"\u003e\n\u003cli data-section-id=\"1kdkttp\" data-start=\"1226\" data-end=\"1270\"\u003eHeavy-duty Type C cavity drainage membrane\u003c\/li\u003e\n\u003cli data-section-id=\"6jfpk1\" data-start=\"1271\" data-end=\"1297\"\u003eVirgin HDPE construction\u003c\/li\u003e\n\u003cli data-section-id=\"1npfzbe\" data-start=\"1298\" data-end=\"1323\"\u003eLarge 20mm stud profile\u003c\/li\u003e\n\u003cli data-section-id=\"qomo8p\" data-start=\"1324\" data-end=\"1353\"\u003eVery high drainage capacity\u003c\/li\u003e\n\u003cli data-section-id=\"7gjuqn\" data-start=\"1354\" data-end=\"1381\"\u003eHigh compressive strength\u003c\/li\u003e\n\u003cli data-section-id=\"1kylbqf\" data-start=\"1382\" data-end=\"1413\"\u003eSuitable for walls and floors\u003c\/li\u003e\n\u003cli data-section-id=\"rj6i5p\" data-start=\"1414\" data-end=\"1452\"\u003eCan be installed onto wet substrates\u003c\/li\u003e\n\u003cli data-section-id=\"yg513f\" data-start=\"1453\" data-end=\"1494\"\u003eResistant to chemicals and contaminants\u003c\/li\u003e\n\u003cli data-section-id=\"ju1vdy\" data-start=\"1495\" data-end=\"1543\"\u003eSuitable for concrete, masonry and piled walls\u003c\/li\u003e\n\u003cli data-section-id=\"1wdzf4p\" data-start=\"1544\" data-end=\"1563\"\u003eLong service life\u003c\/li\u003e\n\u003cli data-section-id=\"1wqcnek\" data-start=\"1564\" data-end=\"1581\"\u003eEasy to install\u003c\/li\u003e\n\u003cli data-section-id=\"1ohdfs3\" data-start=\"1582\" data-end=\"1639\"\u003eCompatible with Type A and Type B waterproofing systems\u003c\/li\u003e\n\u003cli data-section-id=\"f7ot7m\" data-start=\"1640\" data-end=\"1654\"\u003eBBA Approved\u003c\/li\u003e\n\u003cli data-section-id=\"1vehek0\" data-start=\"1655\" data-end=\"1678\"\u003eCE Marked to EN 13967\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"mu966k\" data-start=\"1680\" data-end=\"1695\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-start=\"1697\" data-end=\"1917\"\u003e\n\u003cli data-section-id=\"sbdkou\" data-start=\"1697\" data-end=\"1721\"\u003eBasement waterproofing\u003c\/li\u003e\n\u003cli data-section-id=\"ofvxee\" data-start=\"1722\" data-end=\"1742\"\u003eCellar conversions\u003c\/li\u003e\n\u003cli data-section-id=\"1cfmfzp\" data-start=\"1743\" data-end=\"1768\"\u003eBelow-ground structures\u003c\/li\u003e\n\u003cli data-section-id=\"p2222w\" data-start=\"1769\" data-end=\"1786\"\u003eRetaining walls\u003c\/li\u003e\n\u003cli data-section-id=\"cnnxeh\" data-start=\"1787\" data-end=\"1800\"\u003ePiled walls\u003c\/li\u003e\n\u003cli data-section-id=\"1d24ua2\" data-start=\"1801\" data-end=\"1817\"\u003eConcrete walls\u003c\/li\u003e\n\u003cli data-section-id=\"1q3wvo8\" data-start=\"1818\" data-end=\"1833\"\u003eMasonry walls\u003c\/li\u003e\n\u003cli data-section-id=\"1xxdc10\" data-start=\"1834\" data-end=\"1851\"\u003eBasement floors\u003c\/li\u003e\n\u003cli data-section-id=\"17d5fp\" data-start=\"1852\" data-end=\"1890\"\u003eType C drained waterproofing systems\u003c\/li\u003e\n\u003cli data-section-id=\"125m0h0\" data-start=\"1891\" data-end=\"1917\"\u003eStructural waterproofing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1uhri7u\" data-start=\"1919\" data-end=\"1943\"\u003eTechnical Information\u003c\/h3\u003e\n\u003cul data-start=\"1945\" data-end=\"2426\"\u003e\n\u003cli data-section-id=\"9mdh38\" data-start=\"1945\" data-end=\"1990\"\u003eProduct Type: HDPE cavity drainage membrane\u003c\/li\u003e\n\u003cli data-section-id=\"mf39qf\" data-start=\"1991\" data-end=\"2035\"\u003eMaterial: Virgin high-density polyethylene\u003c\/li\u003e\n\u003cli data-section-id=\"1kizpvg\" data-start=\"2036\" data-end=\"2051\"\u003eColour: Brown\u003c\/li\u003e\n\u003cli data-section-id=\"13ltstn\" data-start=\"2052\" data-end=\"2070\"\u003eThickness: 1.0mm\u003c\/li\u003e\n\u003cli data-section-id=\"1xzvzdl\" data-start=\"2071\" data-end=\"2090\"\u003eStud Height: 20mm\u003c\/li\u003e\n\u003cli data-section-id=\"v1mffx\" data-start=\"2091\" data-end=\"2112\"\u003eRoll Size: 2m × 20m\u003c\/li\u003e\n\u003cli data-section-id=\"3rmvlp\" data-start=\"2113\" data-end=\"2138\"\u003eCoverage per Roll: 40m²\u003c\/li\u003e\n\u003cli data-section-id=\"hd3524\" data-start=\"2139\" data-end=\"2158\"\u003eWeight: 0.95kg\/m²\u003c\/li\u003e\n\u003cli data-section-id=\"1kyas7r\" data-start=\"2159\" data-end=\"2207\"\u003eMaximum Drainage Capacity: 10 litres\/sec\/metre\u003c\/li\u003e\n\u003cli data-section-id=\"px4936\" data-start=\"2208\" data-end=\"2248\"\u003eMaximum Compressive Strength: 150kN\/m²\u003c\/li\u003e\n\u003cli data-section-id=\"iwwqp5\" data-start=\"2249\" data-end=\"2286\"\u003eWorking Temperature: -30°C to +80°C\u003c\/li\u003e\n\u003cli data-section-id=\"1pczle6\" data-start=\"2287\" data-end=\"2322\"\u003eLap Width: 100mm (2 stud overlap)\u003c\/li\u003e\n\u003cli data-section-id=\"k6kcsc\" data-start=\"2323\" data-end=\"2367\"\u003eCertification: BBA Certificate No. 05\/4232\u003c\/li\u003e\n\u003cli data-section-id=\"10a7xmt\" data-start=\"2368\" data-end=\"2426\"\u003eStandard: EN 13967\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1r8frcv\" data-start=\"2428\" data-end=\"2457\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp data-start=\"2459\" data-end=\"2501\"\u003e\u003cstrong data-start=\"2459\" data-end=\"2501\"\u003eWhat is RIW Cavity Drain R20 used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2503\" data-end=\"2669\"\u003eIt is a heavy-duty Type C cavity drainage membrane designed to collect and channel groundwater from below-ground walls and floors into a maintainable drainage system.\u003c\/p\u003e\n\u003cp data-start=\"2671\" data-end=\"2717\"\u003e\u003cstrong data-start=\"2671\" data-end=\"2717\"\u003eWhat is the difference between R20 and R7?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2719\" data-end=\"2885\"\u003eCavity Drain R20 features a 20mm stud profile and offers a significantly higher drainage capacity than R7, making it ideal where greater water management is required.\u003c\/p\u003e\n\u003cp data-start=\"2887\" data-end=\"2916\"\u003e\u003cstrong data-start=\"2887\" data-end=\"2916\"\u003eCan it be used on floors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2918\" data-end=\"3043\"\u003eYes. R20 is designed for both floor and wall applications and is particularly suited to basement floor waterproofing systems.\u003c\/p\u003e\n\u003cp data-start=\"3045\" data-end=\"3090\"\u003e\u003cstrong data-start=\"3045\" data-end=\"3090\"\u003eCan it be installed onto damp substrates?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3092\" data-end=\"3171\"\u003eYes. It can be installed onto damp concrete, masonry and piled wall substrates.\u003c\/p\u003e\n\u003cp data-start=\"3173\" data-end=\"3211\"\u003e\u003cstrong data-start=\"3173\" data-end=\"3211\"\u003eIs RIW Cavity Drain R20 certified?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3213\" data-end=\"3339\"\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=\"1if0d2f\" data-start=\"0\" data-end=\"49\" 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_R20_2021-03-15.pdf?v=1784560192\" title=\"RIW R20 Cavity Drain Data Sheet\"\u003eData Sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"RIW","offers":[{"title":"2m x 20m","offer_id":57313147027831,"sku":"RIWR20CD2X20","price":895.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/RIWR20CavityDrain2mx20m.png?v=1784560108","url":"https:\/\/clevershieldcoatings.co.uk\/products\/riw-r20-cavity-drain-2m-x-20m","provider":"Clever Shield - Asset Protection","version":"1.0","type":"link"}