{"title":"Radon barriers","description":"\u003cp\u003eBrowse \u003cstrong\u003eradon barrier membranes\u003c\/strong\u003e for protecting buildings against hazardous radon gas ingress from the ground. These specialist membranes provide a continuous, gas-tight barrier beneath floor slabs and screeds, meeting the requirements of BRE Report 211 and Building Regulations for radon-affected areas.\u003c\/p\u003e","products":[{"product_id":"rhinoplast-tophats-flexible-inc-jubilee-clip","title":"Rhinoplast Tophats Flexible inc Jubilee Clip","description":"\u003cp\u003eRhinoplast Tophats Flexible inc Jubilee Clip\nPrincipal Top Hats are used around service pipe penetrations to provide an effective gas tight seal. The base of the pre-formed unit should be sealed using Rhinoplast LT Jointstrip and overtaped at the edges with Girth Tape.\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\u003eA stainless steel Jubilee clip is available for the collar.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eAirtight seals should be formed around all service entry points.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"RHINOPLAST","offers":[{"title":"Default Title","offer_id":51305570402643,"sku":"RHINOPLAST-RHINOPLAST-STD","price":16.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/6720\/9043\/files\/Screenshot2025-12-12at12.37.03_a077b599-5b89-4bf1-8032-649b0b2a2386.png?v=1765539506"},{"product_id":"rhinoplast-tophats-rigid-inc-jubilee-clip","title":"Rhinoplast Tophats Rigid inc Jubilee Clip","description":"\u003cp\u003eRhinoplast Tophats Rigid inc Jubilee Clip\nPrincipal Top Hats are used around service pipe penetrations to provide an effective gas tight seal. The base of the pre-formed unit should be sealed using Rhinoplast LT Jointstrip and overtaped at the edges with Girth Tape.\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\u003eA stainless steel Jubilee clip is available for the collar.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eAirtight seals should be formed around all service entry points.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"RHINOPLAST","offers":[{"title":"Default Title","offer_id":51305570599251,"sku":"RHINOPLAST-RHINOPLAST-STD","price":18.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/6720\/9043\/files\/Screenshot2025-12-12at12.37.03.png?v=1765539435"},{"product_id":"rhinoplast-super-gas-barrier-4m-x-20m","title":"RHINOPLAST Super Gas Barrier 4m x 20m","description":"\u003cp\u003eRHINOPLAST Super Gas Barrier is a high-performance polyethylene membrane providing combined damp-proof and gas-resistant protection for ground-floor constructions. It acts as both a DPM and a barrier against methane and carbon dioxide ingress, meeting the requirements of BS 8485 and CIRIA C665 for developments on sites affected by ground gas. Supplied in 4 m × 20 m rolls (80 m²).\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 DPM and gas barrier 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\u003eProtects against methane and carbon dioxide ingress\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 BS 8485 and CIRIA C665 requirements\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003e400 µm (1600 gauge) heavy-duty polyethylene\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 ground-bearing slabs and suspended floors\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 for gas protection\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eLarge roll size (80 m²) for efficient coverage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003eLay the membrane over the prepared sub-base or blinding layer with a minimum 300 mm overlap at all joints. Seal all overlaps with double-sided gas-resistant tape. Turn up at perimeters and seal to the rising walls. Take care to avoid puncturing the membrane during installation. Protect with a sand blinding layer or screed as soon as practicable. Ensure all penetrations are sealed with compatible gas-tight detailing.\u003c\/p\u003e\n\u003ch3\u003eCoverage\u003c\/h3\u003e\n\u003cp\u003eEach roll covers 80 m² (4 m × 20 m). Allow approximately 10–15% extra for overlaps and wastage depending on floor plan complexity.\u003c\/p\u003e","brand":"RHINOPLAST","offers":[{"title":"Default Title","offer_id":51305571156307,"sku":"RHINOPLAST-20M-STD","price":139.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/6720\/9043\/files\/Screenshot2025-12-12at12.27.48.png?v=1765538931"},{"product_id":"visqueen-foil-backed-girth-jointing-tape-75mm-x-50m","title":"Gas-Resistant Foil Backed Lap Tape for Membrane Sealing","description":"\u003cp\u003eGas-Resistant Foil Backed Lap Tape is a self-adhesive, aluminium foil-backed tape designed for sealing joints and overlaps in gas-resistant membranes. It provides an effective barrier against ground gases including radon and methane, maintaining the integrity of the gas membrane installation.\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\u003eAluminium foil backing provides gas-resistant 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\u003eEffective against radon, methane, and CO2\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eSelf-adhesive for fast, reliable application\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eMaintains gas membrane integrity at joints and laps\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eCompatible with standard gas-resistant membrane systems\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 new-build and remediation projects\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003eEnsure membrane surfaces are clean, dry, and free from dust and debris. Peel the backing from the tape and press firmly along the membrane joint or overlap, smoothing out any air pockets. Ensure minimum overlap as specified by the membrane manufacturer. Apply at temperatures above 5°C for optimum adhesion.\u003c\/p\u003e\n\u003ch3\u003eCoverage\u003c\/h3\u003e\n\u003cp\u003eCoverage depends on roll dimensions — refer to packaging for tape width and roll length. Calculate total requirement based on membrane joint lengths plus any pipe and service penetration details.\u003c\/p\u003e","brand":"VISQUEEN","offers":[{"title":"Default Title","offer_id":51305583018323,"sku":"VISQUEEN-RESISTANT-STD","price":27.36,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/6720\/9043\/files\/visqueen-building-consumables-visqueen-foil-backed-girth-jointing-tape-75mm-x-50m-42232873943257.webp?v=1772121354"},{"product_id":"visqueen-radon-r400-membrane-4m-x-25m-100sqm","title":"Visqueen Radon R400 Membrane 4m x 25m (100sqm)","description":"\u003cp\u003eVisqueen Radon R400 is a 400 µm polyethylene membrane specifically designed as a radon gas barrier for affected areas. It also functions as a damp-proof membrane, providing dual protection in a single layer. BBA certified to BS 8485, it is suitable for new-build ground floor constructions in radon-affected zones.\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\u003eSpecifically designed for radon protection in affected areas\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003e400 µm thickness provides robust, tear-resistant performance\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 for radon gas barrier 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\u003eAlso acts as a damp-proof membrane — dual function\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 for efficient coverage on larger projects\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003e4 m width reduces the number of laps required\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eCompatible with Visqueen radon jointing tapes and sealants\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 for radon-affected areas\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003eLay the membrane over the prepared sub-base or concrete slab with a minimum 150 mm overlap at all joints. Seal laps with Visqueen Radon double-sided jointing tape. Dress membrane up walls and around all service penetrations to maintain a continuous radon-tight seal. Protect the installed membrane from puncture during subsequent works.\u003c\/p\u003e\n\u003ch3\u003eCoverage\u003c\/h3\u003e\n\u003cp\u003eEach roll covers 100 m² (4 m × 25 m). Allow for 150 mm overlaps at all joints when calculating quantities. For complex layouts with multiple penetrations, allow approximately 10–15% additional material for waste and lapping.\u003c\/p\u003e","brand":"VISQUEEN","offers":[{"title":"Default Title","offer_id":51305583903059,"sku":"VISQUEEN-R400-STD","price":124.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/6720\/9043\/files\/Radon_R400.webp?v=1772119804"},{"product_id":"visqueen-low-permeability-gas-membrane-4m-x-12-5m","title":"Visqueen Low Permeability Gas Membrane 4m x 12.5m (50m²) | Radon Barrier","description":"\u003cp\u003eVisqueen Low Permeability Gas Membrane is a high-performance multi-layer polyethylene barrier designed for sites classified as Characteristic Situation 2 (CS2) under BS 8485. It provides combined protection against radon, methane, CO₂, and rising damp in a single robust membrane, suitable for residential, commercial, and brownfield developments.\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\u003eUltra-low permeability rating for highest-risk gas protection\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 Characteristic Situation 2 (CS2) sites per BS 8485\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eCombined gas and damp-proof membrane in one layer\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 for radon, methane, and CO₂ protection\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eRobust multi-layer construction resists site damage\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eWide 4 m roll width minimises laps and joint sealing\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sw-benefit\"\u003e\n\u003cdiv class=\"sw-check\"\u003e​\u003c\/div\u003e\n\u003cspan\u003eCompatible with Visqueen jointing tapes and accessories\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 gas-resistant jointing tape. Dress membrane up at walls and around all penetrations to form a continuous gas-tight barrier. Protect from damage during subsequent construction activities.\u003c\/p\u003e\n\u003ch3\u003eCoverage\u003c\/h3\u003e\n\u003cp\u003eEach roll covers 50 m² (4 m × 12.5 m). Allow for 150 mm overlaps at all joints when calculating roll quantities. For complex floor plans, allow approximately 10–15% additional material for waste and lapping.\u003c\/p\u003e","brand":"VISQUEEN","offers":[{"title":"Default Title","offer_id":51305584099667,"sku":"VISQUEEN-12-STD","price":186.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/6720\/9043\/files\/low-permeability-gas-membrane-yellow-01web.jpg?v=1772119191"},{"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\/collections\/radon-barriers.oembed","provider":"screedworks","version":"1.0","type":"link"}