{"product_id":"radon-r400-membrane","title":"Radon R400 Membrane 4m x 20m","description":"\u003ch2 data-section-id=\"14pobbj\" data-start=\"133\" data-end=\"205\"\u003eVisqueen Radon R400 Membrane – Radon \u0026amp; Damp Proof Protection Membrane\u003c\/h2\u003e\n\u003cp data-start=\"207\" data-end=\"425\"\u003eThe \u003cstrong data-start=\"211\" data-end=\"243\"\u003eVisqueen Radon R400 Membrane\u003c\/strong\u003e is a high-performance \u003cstrong data-start=\"266\" data-end=\"311\"\u003e0.4mm (1600 gauge) thermoplastic membrane\u003c\/strong\u003e designed to prevent the ingress of \u003cstrong data-start=\"347\" data-end=\"360\"\u003eradon gas\u003c\/strong\u003e while also acting as an effective \u003cstrong data-start=\"395\" data-end=\"424\"\u003edamp proof membrane (DPM)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"427\" data-end=\"628\"\u003eManufactured from \u003cstrong data-start=\"445\" data-end=\"463\"\u003evirgin polymer\u003c\/strong\u003e, this flexible and durable membrane is suitable for use in both \u003cstrong data-start=\"528\" data-end=\"571\"\u003ebasic and full radon protection systems\u003c\/strong\u003e, delivering long-term protection in modern construction.\u003c\/p\u003e\n\u003cp data-start=\"427\" data-end=\"628\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/radonr4001.webp?v=1776111461\" alt=\"visqueen radon r400 membrane roll red radon barrier damp proof membrane\" loading=\"lazy\" data-original=\"https:\/\/clevershieldcoatings.co.uk\/cdn\/shop\/files\/radonr4001.jpg?v=1775136996\"\u003e\u003c\/p\u003e\n\u003chr data-start=\"630\" data-end=\"633\"\u003e\n\u003ch3 data-section-id=\"lepo9a\" data-start=\"635\" data-end=\"663\"\u003eKey Features \u0026amp; Benefits:\u003c\/h3\u003e\n\u003cp data-start=\"665\" data-end=\"1121\"\u003e✔ Radon Protection – Prevents ingress of harmful radon gas\u003cbr data-start=\"723\" data-end=\"726\"\u003e✔ Dual Purpose – Functions as both radon barrier and damp proof membrane\u003cbr data-start=\"798\" data-end=\"801\"\u003e✔ BBA Certified – Third-party accredited for performance and reliability\u003cbr data-start=\"873\" data-end=\"876\"\u003e✔ 1600 Gauge Thickness – Meets radon membrane standards\u003cbr data-start=\"931\" data-end=\"934\"\u003e✔ Flexible Installation – Can be taped or heat welded\u003cbr data-start=\"987\" data-end=\"990\"\u003e✔ Durable \u0026amp; Strong – Resistant to tearing, impact, and site conditions\u003cbr data-start=\"1060\" data-end=\"1063\"\u003e✔ Standards Compliant – Conforms to BR 211:2023 guidance\u003c\/p\u003e\n\u003chr data-start=\"1123\" data-end=\"1126\"\u003e\n\u003ch3 data-section-id=\"1rsfkds\" data-start=\"1128\" data-end=\"1151\"\u003eIdeal Applications:\u003c\/h3\u003e\n\u003cp data-start=\"1153\" data-end=\"1374\"\u003e✔ Radon protection systems (basic \u0026amp; full protection areas)\u003cbr data-start=\"1211\" data-end=\"1214\"\u003e✔ Ground floor construction (above or below slab)\u003cbr data-start=\"1263\" data-end=\"1266\"\u003e✔ Beam and block flooring systems\u003cbr data-start=\"1299\" data-end=\"1302\"\u003e✔ Concrete slab installations\u003cbr data-start=\"1331\" data-end=\"1334\"\u003e✔ Residential and commercial buildings\u003c\/p\u003e\n\u003chr data-start=\"1376\" data-end=\"1379\"\u003e\n\u003ch3 data-section-id=\"1byd9l3\" data-start=\"1381\" data-end=\"1409\"\u003eInstallation Guidelines:\u003c\/h3\u003e\n\u003cp data-start=\"1411\" data-end=\"1528\"\u003eInstall on a smooth, clean, and level substrate\u003cbr data-start=\"1458\" data-end=\"1461\"\u003eLay membrane loose and ensure it is clean and dry before jointing\u003c\/p\u003e\n\u003cp data-start=\"1530\" data-end=\"1550\"\u003eSeal joints using:\u003c\/p\u003e\n\u003cul data-start=\"1551\" data-end=\"1608\"\u003e\n\u003cli data-section-id=\"159cx62\" data-start=\"1551\" data-end=\"1576\"\u003e150mm overlap (taped)\u003c\/li\u003e\n\u003cli data-section-id=\"76t420\" data-start=\"1577\" data-end=\"1608\"\u003e100mm overlap (heat welded)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1610\" data-end=\"1739\"\u003eSeal all penetrations using top hat units or detailing strips\u003cbr data-start=\"1671\" data-end=\"1674\"\u003eProtect membrane after installation to avoid UV and site damage\u003c\/p\u003e\n\u003cp data-start=\"1741\" data-end=\"1824\"\u003e⚠ Not suitable where hydrostatic pressure is present\u003cbr data-start=\"1793\" data-end=\"1796\"\u003e⚠ Do not install below 5°C\u003c\/p\u003e\n\u003chr data-start=\"1826\" data-end=\"1829\"\u003e\n\u003ch3 data-section-id=\"7f7l5l\" data-start=\"1831\" data-end=\"1858\"\u003eProduct Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1860\" data-end=\"2021\"\u003eThickness: 0.4mm (1600 gauge)\u003cbr data-start=\"1889\" data-end=\"1892\"\u003eRoll Size: 4m x 20m\u003cbr data-start=\"1911\" data-end=\"1914\"\u003eMaterial: Thermoplastic (virgin polymer)\u003cbr data-start=\"1954\" data-end=\"1957\"\u003eColour: Red\u003cbr data-start=\"1968\" data-end=\"1971\"\u003eInstallation: Loose laid, taped or welded joints\u003c\/p\u003e\n\u003chr data-start=\"2023\" data-end=\"2026\"\u003e\n\u003ch3 data-section-id=\"1v5tucv\" data-start=\"2028\" data-end=\"2055\"\u003eStandards \u0026amp; Compliance:\u003c\/h3\u003e\n\u003cp data-start=\"2057\" data-end=\"2185\"\u003eBBA Certified (13\/5069)\u003cbr data-start=\"2080\" data-end=\"2083\"\u003eConforms to BR 211:2023\u003cbr data-start=\"2106\" data-end=\"2109\"\u003eEN 13967:2017 compliant\u003cbr data-start=\"2132\" data-end=\"2135\"\u003eISO 9001 \/ 14001 \/ 45001 certified manufacturing\u003c\/p\u003e\n\u003chr data-start=\"2187\" data-end=\"2190\"\u003e\n\u003ch2 data-section-id=\"1r8frcv\" data-start=\"2192\" data-end=\"2221\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3 data-section-id=\"107zy0z\" data-start=\"2223\" data-end=\"2264\"\u003eWhat is Visqueen Radon R400 used for?\u003c\/h3\u003e\n\u003cp data-start=\"2265\" data-end=\"2352\"\u003eIt is used to \u003cstrong data-start=\"2279\" data-end=\"2308\"\u003eprevent radon gas ingress\u003c\/strong\u003e and also acts as a \u003cstrong data-start=\"2328\" data-end=\"2351\"\u003edamp proof membrane\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"cp66dc\" data-start=\"2354\" data-end=\"2395\"\u003eCan it be used above and below slabs?\u003c\/h3\u003e\n\u003cp data-start=\"2396\" data-end=\"2461\"\u003eYes, it can be installed \u003cstrong data-start=\"2421\" data-end=\"2460\"\u003eabove or below the structural floor\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"8lo4qo\" data-start=\"2463\" data-end=\"2489\"\u003eHow are joints sealed?\u003c\/h3\u003e\n\u003cp data-start=\"2490\" data-end=\"2565\"\u003eJoints can be \u003cstrong data-start=\"2504\" data-end=\"2529\"\u003etaped (150mm overlap)\u003c\/strong\u003e or \u003cstrong data-start=\"2533\" data-end=\"2564\"\u003eheat welded (100mm overlap)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"11y4efl\" data-start=\"2567\" data-end=\"2611\"\u003eDoes it provide damp protection as well?\u003c\/h3\u003e\n\u003cp data-start=\"2612\" data-end=\"2670\"\u003eYes, it functions as a \u003cstrong data-start=\"2635\" data-end=\"2669\"\u003ecombined radon barrier and DPM\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"171e2g0\" data-start=\"2672\" data-end=\"2711\"\u003eDoes it meet UK building standards?\u003c\/h3\u003e\n\u003cp data-start=\"2712\" data-end=\"2772\"\u003eYes, it is \u003cstrong data-start=\"2723\" data-end=\"2771\"\u003eBBA certified and compliant with BR 211:2023\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"3838\" data-end=\"3914\"\u003e\u003cstrong\u003eDownloads\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3838\" data-end=\"3914\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/Visqueen_Radon_R400_Membrane_data_sheet.pdf?v=1775136884\" title=\"Radon R400 Membrane Data Sheet\" aria-label=\"Visit a webpage about Radon R400 Membrane Data Sheet\"\u003eData sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Visqueen","offers":[{"title":"Visqueen Radon R400 – 4m x 20m","offer_id":56967672889719,"sku":"VISRADR4004X20M","price":129.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0321\/5320\/6920\/files\/radonr4001.webp?v=1776111461","url":"https:\/\/clevershieldcoatings.co.uk\/products\/radon-r400-membrane","provider":"Clever Shield - Asset Protection","version":"1.0","type":"link"}