{"title":"Membranes","description":"","products":[{"product_id":"building-membrane","title":"BIOKIL 8mm Meshed Cavity Drain Membrane – Waterproof Plaster-Ready Tanking Membrane (2m x 20m)","description":"\u003cp\u003eThe \u003cstrong\u003eBiokil 8mm Meshed Membrane\u003c\/strong\u003e is a high-performance waterproof cavity drain membrane with a bonded mesh surface, specifically designed for internal basement waterproofing and damp-proofing applications. Ideal for retaining walls, vaulted soffits, and curved surfaces, this membrane provides a reliable waterproof barrier while offering an excellent key for plastering, rendering, or dot-and-dab dry lining systems.\u003c\/p\u003e\n\n\u003cp\u003eManufactured from durable HDPE with a welded mesh finish, the membrane forms part of a \u003cstrong\u003eType C waterproofing system compliant with BS8102:2009\u003c\/strong\u003e, allowing moisture to be controlled and safely managed. The bonded mesh is securely welded during manufacturing to prevent separation and ensure long-term performance.\u003c\/p\u003e\n\n\u003ca style=\"text-decoration: none;\" href=\"https:\/\/biokilcrown.co.uk\/pages\/%F0%9F%91%89-cellar-tanking-membrane-materials-calculator\"\u003e\n\u003cdiv style=\"height: 50px; display: flex; align-items: center; justify-content: center; text-align: center; border: 1px solid grey; border-radius: 15px; margin: 15px; background-color: #2167ba; color: white;\"\u003e\n\u003cspan style=\"font-weight: 900;\"\u003eMembrane Usage Calculator. Unsure on How Much You'll Need? Click Here.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-performance bonded mesh\u003c\/strong\u003e – ideal for plastering and rendering applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8mm cavity drain system\u003c\/strong\u003e – improves moisture management and drainage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType C waterproofing compliant\u003c\/strong\u003e – in line with BS8102:2009\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for basements and retaining walls\u003c\/strong\u003e – suitable for below-ground structures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerfect for vaulted soffits and curved walls\u003c\/strong\u003e – where dry lining systems may not be practical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof, salt inhibiting\u003c\/strong\u003e – protects against moisture and salt contamination\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoot and contaminant resistant\u003c\/strong\u003e – suitable for demanding environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick installation\u003c\/strong\u003e – minimal surface preparation required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo drying time\u003c\/strong\u003e – redecoration can begin immediately\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible and durable\u003c\/strong\u003e – easily folds around corners and openings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBasement waterproofing systems\u003c\/li\u003e\n\u003cli\u003eRetaining walls\u003c\/li\u003e\n\u003cli\u003eVaulted soffits and curved walls\u003c\/li\u003e\n\u003cli\u003eAbove and below ground waterproofing\u003c\/li\u003e\n\u003cli\u003eDamp-proofing and tanking systems\u003c\/li\u003e\n\u003cli\u003ePlastering and rendering applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow the System Works\u003c\/h3\u003e\n\u003cp\u003eThe studded membrane creates a cavity between the substrate and the finished surface, allowing moisture to pass behind the membrane and be safely managed through a drainage system.\u003c\/p\u003e\n\n\u003cp\u003eThe bonded mesh surface provides a strong mechanical key, enabling plaster, render, or dry lining systems to be applied directly to the membrane without additional preparation layers. :contentReference[oaicite:0]{index=0}\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Overview\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall with studs facing the wall\u003c\/li\u003e\n\u003cli\u003eDrill through the centre of each stud\u003c\/li\u003e\n\u003cli\u003eFix using Biokil Plaster Plugs (50mm, 60mm, or 70mm)\u003c\/li\u003e\n\u003cli\u003eFor below-ground applications, use plugs with seals\u003c\/li\u003e\n\u003cli\u003eFixings should be spaced at 250–300mm centres\u003c\/li\u003e\n\u003cli\u003eEnsure tight fixing around corners and junctions\u003c\/li\u003e\n\u003cli\u003eDo not apply to flat soffits below ground without a minimum 10% slope\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSurface Preparation\u003c\/h3\u003e\n\u003cp\u003eRemove all unsound plaster, render, or screed and ensure surfaces are level before installation. Use a suitable 3:1 sand-cement mix with additive to repair uneven areas and allow repairs to dry thoroughly.\u003c\/p\u003e\n\n\u003cp\u003eWhere mould or fungal contamination is present, treat the surface using a suitable masonry biocide before installation. For above-ground applications, moisture should be addressed at source using a suitable damp proof course such as \u003cstrong\u003eBiokil BioDry ProCream\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFinishing Options\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePlaster Finish:\u003c\/strong\u003e Apply plaster directly to the bonded mesh surface using standard plastering techniques in accordance with BS 5492:1990. A lightweight plaster such as Tarmac Whitewall One Coat Plaster is recommended.\u003c\/p\u003e\n\n\u003cp\u003eThe first coat should fill the studs and cover the mesh to create a scratch finish. Once set, apply a second coat to achieve a final thickness of approximately 15mm.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDry Lining:\u003c\/strong\u003e Apply bonding plaster dabs with a minimum thickness of 8mm, ensuring at least 50% membrane coverage before fixing plasterboard.\u003c\/p\u003e\n\n\u003cp\u003eOnce dry, surfaces can be decorated immediately using conventional methods such as painting or wallpapering.\u003c\/p\u003e\n\n\u003ch3\u003eAftercare \u0026amp; Ventilation\u003c\/h3\u003e\n\u003cp\u003eThe membrane creates a dry and habitable internal environment; however, effective condensation control remains essential, especially in basements and moisture-prone areas.\u003c\/p\u003e\n\n\u003cp\u003eMechanical ventilation systems are recommended to maintain airflow and reduce condensation build-up.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 10px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color: #f5f5f5;\"\u003e\n      \u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n      \u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n      \u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eTest Standard\u003c\/th\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHDPE\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eUnit Weight\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.505kg\/m²\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eSheet Thickness\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.7mm\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEN 149-2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eStud Height\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e3mm\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWorking Temperature\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-50°C to +80°C\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWater Vapour Resistance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHigh\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS EN 1931:2000\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTensile Strength (MD\/CD)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e416N \/ 488N\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS 12311-2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eResistance to Static Loading\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u0026gt;20kg\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS 12730\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eReaction to Fire\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eClass F\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS EN 13501-1\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eLife Expectancy\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eLifetime of structure\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Size\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2m x 20m – 40m² coverage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose Biokil 8mm Meshed Membrane?\u003c\/h3\u003e\n\u003cp\u003eThis membrane combines high-capacity cavity drainage with a plaster-ready mesh finish, making it ideal for waterproofing projects where traditional dry lining systems may not be suitable.\u003c\/p\u003e\n\n\u003cp\u003eIts flexibility, durability, and ease of finishing make it a professional-grade solution for basements, retaining walls, vaulted soffits, and damp-proofing projects.\u003c\/p\u003e","brand":"BIOKIL.","offers":[{"title":"2m X 20m (40sqm)","offer_id":50785109999953,"sku":"CDMM8220","price":270.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/3903\/0865\/files\/Biokil_8mm-Meshed-Membrane-Clear.webp?v=1755088789"},{"product_id":"8mm-membrane-clear","title":"BIOKIL 8mm Cavity Drain Membrane – Waterproof Tanking Membrane (2m x 20m, 2.4m x 20m)","description":"\u003cp\u003eThe \u003cstrong\u003eBiokil 8mm Cavity Drain Membrane\u003c\/strong\u003e is a highly durable, studded waterproof membrane designed to protect walls and floors from water ingress in below-ground and damp environments. Its high-profile stud design creates an effective drainage cavity, allowing moisture to be controlled and safely managed as part of a \u003cstrong\u003eType C waterproofing system in accordance with BS8102:2009\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSuitable for basements, cellars, and underground structures, this membrane delivers a \u003cstrong\u003eGrade 3 habitable environment\u003c\/strong\u003e when installed as part of a complete waterproofing system. It is resistant to water, water vapour, ground salts, and contaminants, making it ideal for long-term damp-proofing and waterproofing projects.\u003c\/p\u003e\n\u003ca style=\"text-decoration: none;\" href=\"https:\/\/biokilcrown.co.uk\/pages\/%F0%9F%91%89-cellar-tanking-membrane-materials-calculator\"\u003e\n\u003cdiv style=\"height: 50px; display: flex; align-items: center; justify-content: center; text-align: center; border: 1px solid grey; border-radius: 15px; margin: 15px; background-color: #2167ba; color: white;\"\u003e\u003cspan style=\"font-weight: 900;\"\u003eMembrane Usage Calculator. Unsure on How Much You'll Need? Click Here.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8mm studded cavity design\u003c\/strong\u003e – creates an effective drainage void\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType C waterproofing system\u003c\/strong\u003e – compliant with BS8102:2009\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade 3 environment capability\u003c\/strong\u003e – suitable for habitable spaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof and vapour resistant\u003c\/strong\u003e – protects against moisture and humidity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt inhibiting\u003c\/strong\u003e – prevents contamination from masonry salts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoot and contaminant resistant\u003c\/strong\u003e – suitable for aggressive environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick installation\u003c\/strong\u003e – minimal preparation required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo drying time\u003c\/strong\u003e – redecorate immediately after installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable HDPE construction\u003c\/strong\u003e – long-lasting and robust\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide temperature tolerance\u003c\/strong\u003e – performs from -50°C to +80°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBasement and cellar waterproofing\u003c\/li\u003e\n\u003cli\u003eBelow-ground structures\u003c\/li\u003e\n\u003cli\u003eWalls and floors in damp environments\u003c\/li\u003e\n\u003cli\u003eVaults and tunnels\u003c\/li\u003e\n\u003cli\u003eNew build and refurbishment projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow the System Works\u003c\/h3\u003e\n\u003cp\u003eThe studded membrane creates a cavity between the substrate and internal finish, allowing water to pass behind the membrane and be directed into a drainage system. This prevents moisture from reaching internal finishes and ensures a dry, usable internal space.\u003c\/p\u003e\n\u003cp\u003eThis cavity drain approach is preferred over traditional tanking systems, as it manages water rather than resisting it, reducing long-term failure risk.\u003c\/p\u003e\n\u003ch3\u003eInstallation Overview\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eApply membrane with studs facing the wall or floor\u003c\/li\u003e\n\u003cli\u003eApply Biokil Lime Inhibitor to concrete surfaces before installation\u003c\/li\u003e\n\u003cli\u003eDrill through studs and fix using Biokil Brick Plugs (with seals for below ground)\u003c\/li\u003e\n\u003cli\u003eFixings should be spaced at maximum 600mm centres\u003c\/li\u003e\n\u003cli\u003eSeal flanges using Biokil Sealing\/Joining Tape\u003c\/li\u003e\n\u003cli\u003eEnsure correct overlap and positioning of sheets to prevent water ingress\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSurface Preparation\u003c\/h3\u003e\n\u003cp\u003eEnsure all surfaces are sound, clean, and level prior to installation. Remove any loose plaster, render, or screed and repair using a suitable sand-cement mix with additive.\u003c\/p\u003e\n\u003cp\u003eWhere mould or fungal growth is present, treat with a suitable masonry biocide before installation. For above-ground applications, it is recommended to address moisture at source using a damp proof course such as \u003cstrong\u003eBiokil BioDry ProCream\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eFinishing Options\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eStud Wall System:\u003c\/strong\u003e Install battens (minimum 25 x 38mm) aligned with fixing plugs and secure plasterboard to create a dry lining system without puncturing the membrane.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDot and Dab Dry Lining:\u003c\/strong\u003e Apply bonding plaster dabs (minimum 8mm thick) covering at least 50% of the membrane surface. Plasterboard can then be fixed directly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFloor Installation:\u003c\/strong\u003e Overlay with insulation and install tongue-and-groove flooring, leaving a 10mm expansion gap. Alternatively, apply a 65mm sand and cement screed.\u003c\/p\u003e\n\u003ch3\u003eAftercare \u0026amp; Ventilation\u003c\/h3\u003e\n\u003cp\u003eThe membrane creates a dry and habitable environment, but effective condensation control is essential, particularly in basements and high-moisture areas.\u003c\/p\u003e\n\u003cp\u003eMechanical ventilation systems are recommended to ensure airflow and prevent moisture build-up.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f5f5f5;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eTest Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHDPE\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eUnit Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.5kg\/m²\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eSheet Thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.45mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEN 149-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eStud Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e7mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWater Tightness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePass\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEN1928\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWater Vapour Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHigh\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS EN 1931\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTensile Strength (MD\/CD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e416N \/ 488N\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS 12311-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eResistance to Static Loading\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u0026gt;20kg\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS 12730\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eReaction to Fire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eClass F\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS EN 13501-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWorking Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-50°C to +80°C\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eLife Expectancy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eLifetime of structure\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAvailable Sizes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2m x 20m – 40m² coverage\u003c\/li\u003e\n\u003cli\u003e2.4m x 20m – 48m² coverage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose Biokil 8mm Membrane?\u003c\/h3\u003e\n\u003cp\u003eThis high-performance membrane provides a robust and reliable waterproofing solution for demanding environments. Its deeper stud profile improves drainage capacity compared to lower-profile membranes, making it ideal for areas with higher moisture levels or water ingress risk.\u003c\/p\u003e\n\u003cp\u003eWhether you're converting a basement or protecting a structure from damp, the Biokil 8mm Membrane offers a proven, professional-grade system designed for long-term performance.\u003c\/p\u003e","brand":"BIOKIL.","offers":[{"title":"2m x 20m - 40sqm","offer_id":50785120190801,"sku":"CDM8220","price":195.84,"currency_code":"GBP","in_stock":true},{"title":"2.4m x 20m - 48sqm","offer_id":50785120223569,"sku":"CDM82420","price":239.04,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/3903\/0865\/files\/Biokil_8mm-Membrane-Clear.webp?v=1755088767"},{"product_id":"3mm-meshed-membrane-clear","title":"BIOKIL 3mm Meshed Cavity Drain Membrane – Waterproof Plaster-Ready Tanking Membrane (1m x 10m, 1m x 20m, 1.2m x 20m, 2m x 20m)","description":"\u003ch2\u003eBiokil 3mm Meshed Membrane – Waterproof Cavity Drain Membrane for Plastering \u0026amp; Dry Lining\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBiokil 3mm Meshed Membrane\u003c\/strong\u003e is a high-performance waterproof membrane with a bonded mesh surface, specifically designed for use after the installation of a damp proof course (DPC). It provides a reliable barrier against moisture while offering an excellent mechanical key for plastering, rendering, or dot and dab dry lining.\u003c\/p\u003e\n\u003cp\u003eManufactured from durable HDPE with a welded mesh finish, this membrane forms part of a \u003cstrong\u003eType C cavity drain waterproofing system (BS8102:2009 compliant)\u003c\/strong\u003e, allowing water to be controlled and managed safely. It enables immediate application following DPC installation, reducing downtime and accelerating remedial projects.\u003c\/p\u003e\n\u003ca href=\"https:\/\/biokilcrown.co.uk\/pages\/%F0%9F%91%89-cellar-tanking-membrane-materials-calculator\" style=\"text-decoration: none;\"\u003e\n\u003cdiv style=\"height: 50px; display: flex; align-items: center; justify-content: center; text-align: center; border: 1px solid grey; border-radius: 15px; margin: 15px; background-color: #2167ba; color: white;\"\u003e\u003cspan style=\"font-weight: 900;\"\u003eMembrane Usage Calculator. Unsure on How Much You'll Need? Click Here.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBonded mesh surface\u003c\/strong\u003e – provides a strong key for plastering and rendering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for post-DPC applications\u003c\/strong\u003e – ideal after damp proof course installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType C waterproofing system\u003c\/strong\u003e – compliant with BS8102:2009\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof, salt inhibiting\u003c\/strong\u003e – protects against moisture and contamination\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoot and contaminant resistant\u003c\/strong\u003e – suitable for challenging environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick installation\u003c\/strong\u003e – minimal preparation required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo drying time\u003c\/strong\u003e – immediate redecoration possible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible membrane\u003c\/strong\u003e – easily folds around windows, doors, and corners\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction\u003c\/strong\u003e – long-lasting HDPE with welded mesh\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWalls following damp proof course (DPC) installation\u003c\/li\u003e\n\u003cli\u003eBasement and cellar waterproofing systems\u003c\/li\u003e\n\u003cli\u003eAbove and below ground waterproofing\u003c\/li\u003e\n\u003cli\u003eSurface preparation for plastering or rendering\u003c\/li\u003e\n\u003cli\u003eDry lining (dot and dab) systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow the System Works\u003c\/h3\u003e\n\u003cp\u003eThe membrane’s studded design creates a cavity that allows moisture to pass behind the membrane and be safely managed through drainage systems. The bonded mesh surface provides a secure mechanical key, allowing plaster or render to be applied directly.\u003c\/p\u003e\n\u003cp\u003eThis approach ensures both effective waterproofing and a high-quality internal finish, making it ideal for remedial damp-proofing projects.\u003c\/p\u003e\n\u003ch3\u003eInstallation Overview\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall with studs facing the wall\u003c\/li\u003e\n\u003cli\u003eFix using Biokil Plaster Plugs or Brick Plugs\u003c\/li\u003e\n\u003cli\u003eDrill through studs and secure plugs using a mallet\u003c\/li\u003e\n\u003cli\u003eFixings should be spaced at 250–300mm centres\u003c\/li\u003e\n\u003cli\u003eButt-joint membranes and seal using plaster mesh tape (above ground)\u003c\/li\u003e\n\u003cli\u003eEnsure tight fixing around corners and junctions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSurface Preparation\u003c\/h3\u003e\n\u003cp\u003eRemove all unsound plaster, render, or screed and level the surface using a suitable sand-cement mix with additive. Ensure surfaces are clean and dry before installation.\u003c\/p\u003e\n\u003cp\u003eTreat any mould or fungal growth using a suitable masonry biocide prior to installation. Where possible, address the source of moisture by installing a damp proof course such as \u003cstrong\u003eBiokil BioDry ProCream\u003c\/strong\u003e before applying the membrane.\u003c\/p\u003e\n\u003ch3\u003eFinishing Options\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePlastering:\u003c\/strong\u003e Apply plaster directly onto the mesh surface. The first coat should fill the studs and create a scratch finish, followed by a second coat to achieve a total thickness of approximately 15mm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDry Lining:\u003c\/strong\u003e Apply bonding plaster in dabs (minimum 8mm thick) covering at least 50% of the membrane surface before fixing plasterboard.\u003c\/p\u003e\n\u003cp\u003eOnce dry, surfaces can be decorated immediately using standard methods such as painting or wallpapering.\u003c\/p\u003e\n\u003ch3\u003eAftercare \u0026amp; Ventilation\u003c\/h3\u003e\n\u003cp\u003eWhile the membrane provides a dry internal environment, proper condensation control is essential, particularly in areas with limited ventilation.\u003c\/p\u003e\n\u003cp\u003eMechanical ventilation is recommended to maintain airflow and prevent moisture build-up in kitchens, bathrooms, and basement areas.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f5f5f5;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eTest Standard\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHDPE\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eUnit Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.505kg\/m²\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eSheet Thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.7mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEN 149-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eStud Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e3mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWater Tightness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePass\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEN1928\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCompressive Strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e250kN\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS EN ISO 25619-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTensile Strength (MD\/CD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e416N \/ 488N\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS 12311-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWorking Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-50°C to +80°C\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eReaction to Fire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eClass E\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS EN 13501-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eLife Expectancy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eLifetime of structure\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAvailable Sizes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1m x 10m – 10m²\u003c\/li\u003e\n\u003cli\u003e1m x 20m – 20m²\u003c\/li\u003e\n\u003cli\u003e1.2m x 20m – 24m²\u003c\/li\u003e\n\u003cli\u003e2m x 20m – 40m²\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose Biokil 3mm Meshed Membrane?\u003c\/h3\u003e\n\u003cp\u003eThis membrane combines waterproofing performance with a practical finishing solution. By integrating a bonded mesh, it eliminates the need for additional preparation layers, reducing labour time and improving finish quality.\u003c\/p\u003e\n\u003cp\u003eIt is the ideal choice for damp-proofing projects where a reliable waterproof barrier and a plaster-ready surface are both required.\u003c\/p\u003e","brand":"BIOKIL.","offers":[{"title":"1m x 10m - 10sqm","offer_id":50785120256337,"sku":"CDMM3110","price":80.64,"currency_code":"GBP","in_stock":true},{"title":"1m x 20m - 20sqm","offer_id":50785120289105,"sku":"CDMM3120","price":135.36,"currency_code":"GBP","in_stock":true},{"title":"1.2m x 20m - 24sqm","offer_id":50795275157841,"sku":"CDMM31220","price":162.72,"currency_code":"GBP","in_stock":true},{"title":"2m x 20m - 40sqm","offer_id":50785120321873,"sku":"CDMM3220","price":244.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/3903\/0865\/files\/3mm-Meshed-Membrane-DIY.webp?v=1755088767"},{"product_id":"3mm-membrane-black","title":"BIOKIL 3mm Waterproof Membrane Roll – Cavity Drain Tanking System 40m²","description":"\u003cp\u003eThe \u003cstrong\u003eBiokil 3mm Cavity Drain Membrane\u003c\/strong\u003e is a high-performance waterproofing solution designed to protect walls and floors from water ingress. Manufactured from durable HDPE, this studded membrane forms part of a \u003cstrong\u003eType C cavity drain system in accordance with BS8102:2009\u003c\/strong\u003e, allowing water to be controlled and safely managed rather than resisted.\u003c\/p\u003e\n\u003cp\u003eIdeal for basements, cellars, and below-ground environments, this membrane creates a dry, habitable internal space with minimal preparation and no drying time, making it suitable for both professional contractors and DIY waterproofing projects.\u003c\/p\u003e\n\u003ca href=\"https:\/\/biokilcrown.co.uk\/pages\/%F0%9F%91%89-cellar-tanking-membrane-materials-calculator\" style=\"text-decoration: none;\"\u003e\n\u003cdiv style=\"height: 50px; display: flex; align-items: center; justify-content: center; text-align: center; border: 1px solid grey; border-radius: 15px; margin: 15px; background-color: #2167ba; color: white;\"\u003e\u003cspan style=\"font-weight: 900;\"\u003eMembrane Usage Calculator. Unsure on How Much You'll Need? Click Here.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3mm studded cavity design\u003c\/strong\u003e – controls and manages water ingress\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType C waterproofing system\u003c\/strong\u003e – compliant with BS8102:2009\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick and easy installation\u003c\/strong\u003e – minimal surface preparation required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo drying time\u003c\/strong\u003e – decorate immediately after installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible membrane\u003c\/strong\u003e – easily folds around windows, doors, and corners\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable HDPE construction\u003c\/strong\u003e – long-lasting and robust\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt inhibiting\u003c\/strong\u003e – protects against salt contamination\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoot and contaminant resistant\u003c\/strong\u003e – suitable for aggressive environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide temperature tolerance\u003c\/strong\u003e – performs from -50°C to +80°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-invasive system\u003c\/strong\u003e – minimal disruption to existing structures\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBasement and cellar waterproofing\u003c\/li\u003e\n\u003cli\u003eBelow-ground structures\u003c\/li\u003e\n\u003cli\u003eWalls and floors in damp environments\u003c\/li\u003e\n\u003cli\u003eVaults and tunnels\u003c\/li\u003e\n\u003cli\u003eRefurbishment and new-build projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow the System Works\u003c\/h3\u003e\n\u003cp\u003eThe studded design creates a cavity between the membrane and the substrate, allowing water to pass behind the membrane and be directed into a drainage system. This prevents moisture from entering internal finishes and ensures a dry, usable living space.\u003c\/p\u003e\n\u003cp\u003eUnlike traditional tanking systems, which attempt to block water, this cavity drain system manages water safely, reducing long-term risk of failure.\u003c\/p\u003e\n\u003ch3\u003eInstallation Overview\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFix membrane to walls using Biokil Plaster Plugs or Brick Plugs at max 600mm centres\u003c\/li\u003e\n\u003cli\u003eDrill through studs and secure plugs with a rubber mallet\u003c\/li\u003e\n\u003cli\u003eOverlap joints by at least two stud rows (three in severe conditions)\u003c\/li\u003e\n\u003cli\u003eSeal joints using Biokil Sealing Tape and Sealing Rope\u003c\/li\u003e\n\u003cli\u003eInstall on floors beneath insulation or screed systems\u003c\/li\u003e\n\u003cli\u003eFinish with plasterboard, render, or stud wall systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSurface Preparation\u003c\/h3\u003e\n\u003cp\u003eEnsure surfaces are sound, level, and free from loose material. Remove any unsound plaster, render, or screed and repair using a suitable sand-cement mix.\u003c\/p\u003e\n\u003cp\u003eWhere mould or fungal growth is present, treat surfaces with an appropriate masonry biocide before installation. In above-ground applications, it is recommended to address moisture at source using a damp-proof course system prior to installation.\u003c\/p\u003e\n\u003ch3\u003eAftercare \u0026amp; Ventilation\u003c\/h3\u003e\n\u003cp\u003eThe membrane creates a dry internal environment; however, effective \u003cstrong\u003econdensation control\u003c\/strong\u003e is essential, particularly in basements and high-moisture areas.\u003c\/p\u003e\n\u003cp\u003eMechanical ventilation is recommended to ensure proper airflow and prevent moisture build-up.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f5f5f5;\"\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHDPE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eStud Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eSheet Thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eRoll Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e2m x 20m (40m² coverage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eColour\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eClear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWater Tightness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePass (EN1928)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCompressive Strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e250kN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWorking Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-50°C to +80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFire Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eClass E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eLife Expectancy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eLifetime of the structure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhy Choose Biokil 3mm Membrane?\u003c\/h3\u003e\n\u003cp\u003eThis membrane offers a reliable and long-term waterproofing solution by managing water rather than resisting it. Its ease of installation, durability, and compliance with recognised standards make it an ideal choice for both residential and commercial waterproofing projects.\u003c\/p\u003e\n\u003cp\u003eWhether you are converting a basement or protecting a property from damp, the Biokil 3mm Membrane provides a proven, professional-grade system.\u003c\/p\u003e","brand":"BIOKIL.","offers":[{"title":"2m X 20m (40sqm)","offer_id":50785122550097,"sku":"CDM3220C","price":204.48,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/3903\/0865\/files\/3mm_Membrane_CLEAR.png?v=1755088763"},{"product_id":"20mm-stud-membrane-black","title":"BIOKIL 20mm Stud Membrane – High Drainage Waterproof Tanking Membrane (2m x 20m)","description":"\u003cp\u003eThe \u003cstrong\u003eBiokil 20mm Stud Membrane\u003c\/strong\u003e is a heavy-duty waterproof cavity drain membrane designed for demanding basement waterproofing and civil engineering applications where effective seepage control is critical. Its deep 20mm stud profile creates a high-capacity drainage void while forming part of a \u003cstrong\u003eType C waterproofing system compliant with BS8102:2009\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eManufactured from durable HDPE, this membrane provides an impermeable waterproof barrier suitable for floors, walls, vaults, tunnels, and below-ground structures. Its exceptional drainage performance and high void capacity make it ideal for projects exposed to severe water ingress or persistent damp conditions.\u003c\/p\u003e\n\n\u003ca style=\"text-decoration: none;\" href=\"https:\/\/biokilcrown.co.uk\/pages\/%F0%9F%91%89-cellar-tanking-membrane-materials-calculator\"\u003e\n\u003cdiv style=\"height: 50px; display: flex; align-items: center; justify-content: center; text-align: center; border: 1px solid grey; border-radius: 15px; margin: 15px; background-color: #2167ba; color: white;\"\u003e\n\u003cspan style=\"font-weight: 900;\"\u003eMembrane Usage Calculator. Unsure on How Much You'll Need? Click Here.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20mm stud profile\u003c\/strong\u003e – provides exceptional drainage capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh water void volume\u003c\/strong\u003e – 14L\/m² drainage capability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType C waterproofing system\u003c\/strong\u003e – compliant with BS8102:2009\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for severe water ingress\u003c\/strong\u003e – suitable for demanding below-ground environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof and salt inhibiting\u003c\/strong\u003e – protects against moisture and contamination\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoot and contaminant resistant\u003c\/strong\u003e – suitable for civil engineering applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick installation\u003c\/strong\u003e – easy to roll out over floors and slabs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimal structural disruption\u003c\/strong\u003e – little or no damage to existing structures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow and high temperature tolerance\u003c\/strong\u003e – performs from -50°C to +80°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty HDPE construction\u003c\/strong\u003e – long-lasting and highly durable\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBasement floor waterproofing\u003c\/li\u003e\n\u003cli\u003eHigh water ingress environments\u003c\/li\u003e\n\u003cli\u003eWalls and floors in below-ground structures\u003c\/li\u003e\n\u003cli\u003eCivil engineering projects\u003c\/li\u003e\n\u003cli\u003eVaults and tunnels\u003c\/li\u003e\n\u003cli\u003eCommercial and industrial waterproofing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow the System Works\u003c\/h3\u003e\n\u003cp\u003eThe 20mm stud profile creates a large drainage cavity between the substrate and finished surface, allowing water to pass freely behind the membrane and be safely directed into a drainage system.\u003c\/p\u003e\n\n\u003cp\u003eThis cavity drain approach manages water rather than resisting it, significantly reducing the risk of waterproofing failure while creating a dry and habitable internal environment. :contentReference[oaicite:0]{index=0}\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Overview\u003c\/h3\u003e\n\n\u003ch4\u003eFloor Applications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eApply Biokil Lime Inhibitor to concrete slabs before installation\u003c\/li\u003e\n\u003cli\u003eRoll membrane directly across prepared concrete floors\u003c\/li\u003e\n\u003cli\u003eSeal internal and external corners using Biokil Corner Strip Tape\u003c\/li\u003e\n\u003cli\u003eOverlap sheets by at least three studs to interlock the membrane\u003c\/li\u003e\n\u003cli\u003eDo not mechanically fix floor membranes to maintain free drainage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eWall Applications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eInstall membrane with studs facing the wall\u003c\/li\u003e\n\u003cli\u003eDrill through the centre of studs and fix using Biokil Brick Plugs with seals\u003c\/li\u003e\n\u003cli\u003eSeal flanges using Biokil Sealing\/Joining Tape\u003c\/li\u003e\n\u003cli\u003eOverlap joints by at least two stud rows (three in severe wet conditions)\u003c\/li\u003e\n\u003cli\u003eUse Biokil Sealing Rope and Corner Strip Tape for additional protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSurface Preparation\u003c\/h3\u003e\n\u003cp\u003eAll surfaces should be clean, sound, and level prior to installation. Remove any loose plaster, render, or screed and repair uneven areas using a suitable sand-cement mix with additive.\u003c\/p\u003e\n\n\u003cp\u003eWhere mould or fungal growth is present, treat the area with a suitable masonry biocide before installation. In above-ground applications, moisture sources should be addressed using a damp proof course such as \u003cstrong\u003eBiokil BioDry ProCream\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFinishing Options\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFloor Finishes:\u003c\/strong\u003e Basement floors are typically finished with a concrete pour or a minimum 65mm screed over the membrane. Ensure screed moisture content is below 75% RH before applying impermeable floor coverings.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWall Finishes:\u003c\/strong\u003e Stud wall systems can be installed over the membrane. For project-specific finishes and detailing, consult the Biokil Technical Department.\u003c\/p\u003e\n\n\u003ch3\u003eVaulted Ceilings \u0026amp; Special Applications\u003c\/h3\u003e\n\u003cp\u003eThe membrane can be installed on vaulted ceilings and curved structures where required. All mitred joints should be fully sealed using Biokil Sealing Tape, Sealing Rope, and Corner Strip Tape to maintain waterproof integrity.\u003c\/p\u003e\n\n\u003cp\u003eFlat soffits below ground level should not be lined unless a minimum slope of 10% is present.\u003c\/p\u003e\n\n\u003ch3\u003eAftercare \u0026amp; Ventilation\u003c\/h3\u003e\n\u003cp\u003eThe membrane creates a dry and habitable environment in areas previously affected by persistent dampness. However, effective condensation control remains essential in enclosed or poorly ventilated spaces.\u003c\/p\u003e\n\n\u003cp\u003eMechanical ventilation systems are recommended to reduce condensation and maintain healthy airflow.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 10px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color: #f5f5f5;\"\u003e\n      \u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n      \u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n      \u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eTest Standard\u003c\/th\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHDPE\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eUnit Weight\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e1kg\/m²\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eSheet Thickness\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e1mm\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eStud Height\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e20mm\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eColour\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBlack\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWater Tightness\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePass\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEN1928\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCompressive Strength\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e170kN\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS EN ISO 25619-2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTensile Strength (MD\/CD)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e416N \/ 488N\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS 12311-2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eResistance to Static Loading\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u0026gt;20kg\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS 12730\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eReaction to Fire\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eClass E\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS EN 13501-1\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWorking Temperature\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-50°C to +80°C\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eLife Expectancy\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eLifetime of structure\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Size\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2m x 20m – 40m² coverage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose Biokil 20mm Stud Membrane?\u003c\/h3\u003e\n\u003cp\u003eWith its deep stud profile and exceptional drainage capacity, this membrane is specifically designed for challenging waterproofing environments where lower-profile systems may not provide sufficient water management.\u003c\/p\u003e\n\n\u003cp\u003eIdeal for basements, tunnels, civil engineering, and high-risk damp environments, the Biokil 20mm Stud Membrane delivers professional-grade waterproofing performance for long-term protection.\u003c\/p\u003e","brand":"BIOKIL.","offers":[{"title":"2m X 20m (40sqm)","offer_id":50785123205457,"sku":"CDM20220","price":298.08,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/3903\/0865\/files\/20mm_Stud_Membrane.jpg?v=1768586315"},{"product_id":"1mm-slimline-membrane","title":"BIOKIL Slimline Membrane – 1mm Stud Flooring Damp Proof Membrane (2m x 20m)","description":"\u003cp\u003eThe \u003cstrong\u003eBiokil Slimline Membrane\u003c\/strong\u003e is a high-performance 1mm studded flooring membrane designed to isolate moisture-sensitive flooring from damp concrete slabs and contaminated subfloors. Engineered for high-load applications, this slimline damp proof membrane enables floor coverings to be installed over ‘green’ concrete just two days after the slab becomes walkable, helping significantly accelerate project timelines.\u003c\/p\u003e\n\n\u003cp\u003eManufactured from durable HDPP, the membrane offers exceptional compressive strength exceeding \u003cstrong\u003e1000kN\/m²\u003c\/strong\u003e, making it suitable for use as a high-load damp proof course (DPC) within structural block walls as well as demanding flooring applications.\u003c\/p\u003e\n\n\u003cp\u003eThe membrane is highly resistant to water, alkalies, hydrocarbons, saline solutions, organic acids, bacteria, fungi, and mineral exposure, providing long-term protection and reliability in both residential and commercial environments.\u003c\/p\u003e\n\n\u003ca style=\"text-decoration: none;\" href=\"https:\/\/biokilcrown.co.uk\/pages\/%F0%9F%91%89-cellar-tanking-membrane-materials-calculator\"\u003e\n\u003cdiv style=\"height: 50px; display: flex; align-items: center; justify-content: center; text-align: center; border: 1px solid grey; border-radius: 15px; margin: 15px; background-color: #2167ba; color: white;\"\u003e\n\u003cspan style=\"font-weight: 900;\"\u003eMembrane Usage Calculator. Unsure on How Much You'll Need? Click Here.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1mm studded flooring membrane\u003c\/strong\u003e – isolates moisture-sensitive floor coverings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall over green concrete\u003c\/strong\u003e – suitable once slabs are walkable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional compressive strength\u003c\/strong\u003e – exceeds 1000kN\/m²\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan be used as a high-load DPC\u003c\/strong\u003e – suitable within structural block walls\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHighly resistant to chemicals\u003c\/strong\u003e – withstands alkalies, hydrocarbons, and saline solutions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResistant to bacteria and fungi\u003c\/strong\u003e – long-term protection in damp environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable and inert construction\u003c\/strong\u003e – unaffected by mineral exposure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for contaminated floors\u003c\/strong\u003e – ideal for refurbishment projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast installation\u003c\/strong\u003e – reduces downtime and project delays\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong life expectancy\u003c\/strong\u003e – backed by a 30-year guarantee against deterioration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMoisture-sensitive flooring installations\u003c\/li\u003e\n\u003cli\u003eGreen concrete slab applications\u003c\/li\u003e\n\u003cli\u003eHigh-grade damp proof membrane systems\u003c\/li\u003e\n\u003cli\u003eContaminated floor refurbishment\u003c\/li\u003e\n\u003cli\u003eTimber and laminate flooring systems\u003c\/li\u003e\n\u003cli\u003eSports floor installations\u003c\/li\u003e\n\u003cli\u003eScreed and tongue-and-groove flooring systems\u003c\/li\u003e\n\u003cli\u003eBelow-ground waterproof flooring systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSuitable Floor Coverings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eScreed systems\u003c\/li\u003e\n\u003cli\u003e18mm or 22mm tongue-and-groove chipboard\u003c\/li\u003e\n\u003cli\u003eParticle board flooring\u003c\/li\u003e\n\u003cli\u003eLaminate flooring\u003c\/li\u003e\n\u003cli\u003eMoisture-sensitive timber flooring\u003c\/li\u003e\n\u003cli\u003eSports flooring systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow the System Works\u003c\/h3\u003e\n\u003cp\u003eThe low-profile studded design creates a separation layer between the floor slab and final floor covering, isolating moisture-sensitive materials from dampness and residual moisture within the substrate.\u003c\/p\u003e\n\n\u003cp\u003eThis allows delicate floor finishes to be installed significantly earlier than traditional systems while still maintaining long-term moisture protection and structural durability. :contentReference[oaicite:0]{index=0}\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Overview\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrush floors thoroughly to remove dust and debris\u003c\/li\u003e\n\u003cli\u003eRemove all sharp protrusions from the surface\u003c\/li\u003e\n\u003cli\u003eFill non-structural cracks wider than 1mm\u003c\/li\u003e\n\u003cli\u003eRepair structural cracks appropriately before installation\u003c\/li\u003e\n\u003cli\u003eFill holes and indentations to ensure a level substrate\u003c\/li\u003e\n\u003cli\u003eInstall flooring finishes directly over the membrane using suitable systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFinishing Options\u003c\/h3\u003e\n\u003cp\u003eThe membrane can be covered using a variety of flooring systems depending on the application requirements.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreed:\u003c\/strong\u003e Suitable for traditional screed applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTongue-and-Groove Boards:\u003c\/strong\u003e Compatible with 18mm or 22mm T\u0026amp;G chipboard or particle board\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaminate \u0026amp; Timber Flooring:\u003c\/strong\u003e Install over 18mm or 22mm T\u0026amp;G boards for optimal performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDurability \u0026amp; Chemical Resistance\u003c\/h3\u003e\n\u003cp\u003eThe Biokil Slimline Membrane is engineered for long-term performance in demanding environments. It is highly resistant to water, saline solutions, hydrocarbons, organic acids, bacteria, fungi, and mineral exposure.\u003c\/p\u003e\n\n\u003cp\u003eIts inert construction ensures reliable performance beneath sensitive flooring systems even in contaminated or damp environments.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 10px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color: #f5f5f5;\"\u003e\n      \u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n      \u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n      \u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eTest Method\u003c\/th\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHDPP\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eColour\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGrey\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDensity\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e470g\/m²\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e2.08m\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e20m\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCoverage\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e40m²\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eStud Depth\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e1mm\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e2mm\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCompressive Strength\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u0026gt;1000kPa\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSPF VN 2200\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.480W\/mK\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEN 12667\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWater Vapour Resistance (Sd)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e200m\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS EN 1931\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eResistance to Fire\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEuroclass F\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS EN 13501-1\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eChemical Resistance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eExcellent\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEN 1296 \u0026amp; EN 1928 B\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Size\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2m x 20m – 40m² coverage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose Biokil Slimline Membrane?\u003c\/h3\u003e\n\u003cp\u003eThe Biokil Slimline Membrane provides a professional-grade solution for isolating flooring systems from damp concrete and contaminated substrates while significantly reducing waiting times on new construction projects.\u003c\/p\u003e\n\n\u003cp\u003eIts exceptional compressive strength, chemical resistance, and compatibility with sensitive floor coverings make it ideal for both residential and commercial flooring applications.\u003c\/p\u003e","brand":"BIOKIL.","offers":[{"title":"2m x 20m - 40sqm","offer_id":50795275583825,"sku":"CDMSF1220","price":309.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/3903\/0865\/files\/Slimline_Membrane.png?v=1768586268"},{"product_id":"geotextile-membrane","title":"BIOKIL Geotextile Membrane – Twin Layered Cavity Drain Waterproof Membrane (2m x 20m)","description":"\u003cp\u003eThe \u003cstrong\u003eBiokil Geotextile Membrane\u003c\/strong\u003e is a high-performance twin-layered cavity drain membrane designed to manage water and relieve hydrostatic pressure in below-ground and external waterproofing applications. Combining an 8mm studded HDPE membrane with a nonwoven geotextile filtration layer, this advanced system directs water safely towards drainage channels while protecting waterproof coatings from surrounding soil and groundwater.\u003c\/p\u003e\n\n\u003cp\u003eThe geotextile layer is manufactured from UV-stabilised, high-tenacity virgin polypropylene fibres that are mechanically entangled and thermally treated to provide exceptional durability, filtration performance, and resistance to abrasion. The system is ideal for retaining walls, external tanking, podium decks, green roofs, and civil engineering waterproofing projects.\u003c\/p\u003e\n\n\u003ca style=\"text-decoration: none;\" href=\"https:\/\/biokilcrown.co.uk\/pages\/%F0%9F%91%89-cellar-tanking-membrane-materials-calculator\"\u003e\n\u003cdiv style=\"height: 50px; display: flex; align-items: center; justify-content: center; text-align: center; border: 1px solid grey; border-radius: 15px; margin: 15px; background-color: #2167ba; color: white;\"\u003e\n\u003cspan style=\"font-weight: 900;\"\u003eMembrane Usage Calculator. Unsure on How Much You'll Need? Click Here.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwin-layer waterproofing system\u003c\/strong\u003e – combines drainage and protection in one membrane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8mm studded HDPE core\u003c\/strong\u003e – creates an effective drainage cavity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated geotextile filtration layer\u003c\/strong\u003e – prevents silting and maintains drainage performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelieves hydrostatic pressure\u003c\/strong\u003e – directs water towards land drains\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh drainage capacity\u003c\/strong\u003e – suitable for demanding waterproofing environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal Radon barrier\u003c\/strong\u003e – helps reduce radon ingress\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh compressive strength\u003c\/strong\u003e – withstands stress and movement in backfill areas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAllows back-filling with excavated earth\u003c\/strong\u003e – suitable for external applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal insulation benefits\u003c\/strong\u003e – improves protection of waterproof coatings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged and durable construction\u003c\/strong\u003e – long-lasting waterproofing performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRetaining walls\u003c\/li\u003e\n\u003cli\u003eExternal tanking systems\u003c\/li\u003e\n\u003cli\u003eGreen roof systems\u003c\/li\u003e\n\u003cli\u003ePodium decks\u003c\/li\u003e\n\u003cli\u003eBelow-ground waterproofing\u003c\/li\u003e\n\u003cli\u003eHydrostatic pressure relief systems\u003c\/li\u003e\n\u003cli\u003eProtection of external waterproof coatings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow the System Works\u003c\/h3\u003e\n\u003cp\u003eThe studded HDPE membrane creates a drainage cavity that channels water towards perimeter drainage systems, helping reduce hydrostatic pressure against the structure.\u003c\/p\u003e\n\n\u003cp\u003eThe bonded geotextile layer acts as a filtration barrier, preventing surrounding soil particles and debris from clogging the drainage cavity while maintaining water flow. This creates a combined drainage and protection system that improves long-term waterproofing performance. :contentReference[oaicite:0]{index=0}\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Overview\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall membrane externally with the geotextile layer facing outward\u003c\/li\u003e\n\u003cli\u003eApply vertically or horizontally as required\u003c\/li\u003e\n\u003cli\u003eSeal all overlaps using Biokil Corner Strip Tape\u003c\/li\u003e\n\u003cli\u003eExtend membrane to the level of the drainage channels\u003c\/li\u003e\n\u003cli\u003eEnsure drainage channels are encapsulated in granular infill below floor level\u003c\/li\u003e\n\u003cli\u003eSecure tightly around internal and external corners\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSurface Preparation\u003c\/h3\u003e\n\u003cp\u003eBefore installation, assess the soil composition and groundwater conditions to ensure suitability for the project. Consultation with a Geotechnical Engineer is recommended where hydrostatic pressure or complex site conditions exist.\u003c\/p\u003e\n\n\u003cp\u003eAll surfaces should be clean, stable, and free from sharp protrusions. Where necessary, form smooth transitions at wall-to-floor junctions using a suitable mortar fillet to allow seamless membrane installation.\u003c\/p\u003e\n\n\u003ch3\u003eDrainage \u0026amp; Finishing\u003c\/h3\u003e\n\u003cp\u003eDrainage pipes should be installed to carry water safely away from the structure either passively via natural falls or actively using sump and pump systems. Drainage systems should include jetting access points to allow future maintenance and cleaning.\u003c\/p\u003e\n\n\u003cp\u003eWhen back-filling, care should be taken to avoid damaging the membrane or stressing fixing points. Proper installation ensures long-term waterproofing performance and drainage efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eCondensation Control \u0026amp; Ventilation\u003c\/h3\u003e\n\u003cp\u003eWhile the membrane helps create a dry and protected environment, effective condensation control remains important in enclosed or moisture-prone spaces.\u003c\/p\u003e\n\n\u003cp\u003eMechanical ventilation systems are recommended where natural airflow is limited, particularly in basements and below-ground structures.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 10px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color: #f5f5f5;\"\u003e\n      \u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n      \u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n      \u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eTest Standard\u003c\/th\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHDPE \u0026amp; Geotextile Fabric\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTotal Unit Weight\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.61kg\/m²\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eSheet Thickness\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.97mm\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEN 149-2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eStud Height\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e7mm\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eColour\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBlack\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWater Tightness\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003ePass\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEN 1928\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCompressive Strength\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e180kN\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS EN ISO 25619-2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTensile Strength (MD\/CD)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e416N \/ 488N\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS 12311-2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCBR Puncture Resistance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e1.27kN\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEN ISO 12236\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003ePermeability (H50)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e79l\/m²\/s\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eEN ISO 11058\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eReaction to Fire\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eClass F\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eBS EN 13501-1\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWorking Temperature\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-50°C to +80°C\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eLife Expectancy\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eLifetime of structure\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e-\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Size\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2m x 20m – 40m² coverage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose Biokil Geotextile Membrane?\u003c\/h3\u003e\n\u003cp\u003eThis advanced twin-layer membrane combines waterproofing, drainage, filtration, and protection in a single system, making it ideal for challenging external waterproofing and civil engineering applications.\u003c\/p\u003e\n\n\u003cp\u003eIts high drainage capacity, filtration performance, and durability provide long-term protection against hydrostatic pressure and water ingress while protecting the structure and waterproof coatings from surrounding soil conditions.\u003c\/p\u003e","brand":"BIOKIL.","offers":[{"title":"2m x 20m - 40sqm","offer_id":50795275878737,"sku":"CDMGEO220","price":290.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/3903\/0865\/files\/Geotextile_aaaad04b-c524-4853-abe9-752d3b8ed03f.jpg?v=1755088743"},{"product_id":"cavity-drainage-membrane-product-bundle-30m-coverage","title":"BIOKIL Cavity Drainage Membrane Kit - 30m² Coverage","description":"\u003cp\u003e\u003cstrong\u003eMembrane Kit – 30m² Coverage\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3 x 3mm Meshed Membrane 1m x 10m Rolls \u003c\/li\u003e\n\u003cli\u003e1 x 50mm Plaster Plugs (500)\u003c\/li\u003e\n\u003cli\u003e1 x 115mm Plaster Mesh Tape Roll\u003c\/li\u003e\n\u003cli\u003e2 x 8mm SDS Drill Bits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis membrane kit is ideal for creating a dry internal surface after damp treatment. The 3mm meshed membrane provides a secure, render-ready barrier on damp or uneven walls and is part of a BS8102-compliant waterproofing system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCreates an immediate barrier to residual moisture\u003c\/li\u003e\n\u003cli\u003eProvides a robust key for plaster or dot \u0026amp; dab boards\u003c\/li\u003e\n\u003cli\u003eEasy and fast to install, even on uneven surfaces\u003c\/li\u003e\n\u003cli\u003eReduces drying time before decoration\u003c\/li\u003e\n\u003cli\u003eSuitable for both above- and below-ground applications\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BIOKIL.","offers":[{"title":"30m²","offer_id":51357461381457,"sku":"CDMK30","price":287.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/3903\/0865\/files\/MembraneBundlepic.png?v=1755088718"},{"product_id":"geotextile-fabric","title":"BIOKIL Geotextile Fabric - Drainage Membrane - Black","description":"\u003cp\u003eGeotextile Fabric is used to protect landrains as part of the Geotextile Membrane system.\u003c\/p\u003e","brand":"BIOKIL.","offers":[{"title":"Default Title","offer_id":51961713656145,"sku":"GF22510","price":133.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0913\/3903\/0865\/files\/GEOTEXTILEMembranepicture.jpg?v=1758715037"}],"url":"https:\/\/biokilcrown.co.uk\/collections\/membranes.oembed","provider":"BIOKIL.","version":"1.0","type":"link"}