{"product_id":"visqueen-gas-barrier-2m-x-50m-100m2","title":"Visqueen Gas Barrier 2m x 50m (100m²) | Radon \u0026 Methane Membrane","description":"\u003cp\u003eVisqueen Gas Barrier is a multi-layer polyethylene membrane providing combined protection against ground gases (radon, methane, and CO₂) and rising damp. BBA certified to BS 8485 and BS 8102, it is designed for use in new-build residential and commercial ground floor constructions where gas and moisture protection is required.\u003c\/p\u003e\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cdiv class=\"sw-benefits-grid\"\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eCombined gas and damp-proof protection in a single membrane\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eEffective barrier against radon, methane, and carbon dioxide\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eBBA certified to BS 8485 and BS 8102\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eHigh puncture resistance for robust site handling\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003e100 m² roll provides efficient coverage with fewer joints\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eSuitable for sub-slab and above-slab gas membrane applications\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eEasy to weld and tape at laps for a continuous seal\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eMeets Building Regulations Part C requirements\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003eLay the membrane across the prepared sub-base or slab with a minimum 150 mm overlap at all joints. Seal all laps using Visqueen double-sided jointing tape. Ensure the membrane is dressed up at walls and penetrations to form a continuous barrier. Take care to avoid puncturing during subsequent construction works.\u003c\/p\u003e\n\u003ch3\u003eCoverage\u003c\/h3\u003e\n\u003cp\u003eEach roll covers 100 m² (2 m × 50 m). Allow for 150 mm overlaps at all joints when calculating the number of rolls required. For complex floor plans with multiple penetrations, allow approximately 10–15% additional material for waste and lapping.\u003c\/p\u003e","brand":"VISQUEEN","offers":[{"title":"Default Title","offer_id":51305584296275,"sku":"VISQUEEN-50M-STD","price":623.59,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/6720\/9043\/files\/Screenshot_2026-02-26_at_16.10.40.png?v=1772118682","url":"https:\/\/shop.screedworks.co.uk\/products\/visqueen-gas-barrier-2m-x-50m-100m2","provider":"screedworks","version":"1.0","type":"link"}