{"product_id":"8mm-membrane-clear-biokil-crown","title":"8mm Membrane - Clear - Biokil Crown","description":"\u003ch2\u003eBiokil Crown 8mm Membrane – Clear\u003c\/h2\u003e\n\u003ch3\u003eHigh-Capacity Cavity Drainage Membrane for Below-Ground Waterproofing\u003c\/h3\u003e\n\n\u003cp\u003e\n  Biokil Crown 8mm Membrane – Clear is a robust, high-capacity cavity drainage membrane designed for internal waterproofing applications in basements, retaining walls, and other below-ground structures. Manufactured from clear high-density polyethylene (HDPE), the membrane features 8mm studs that create an air gap between the substrate and internal finishes, allowing water to drain freely into a perimeter drainage system or sump. The clear construction allows for visual inspection of the substrate during installation, making it ideal for damp-proofing and structural waterproofing.\n\u003c\/p\u003e\n\n\u003ch4\u003eKey Features \u0026amp; Benefits\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e8mm Stud Height:\u003c\/strong\u003e Provides excellent drainage capacity for high-moisture or below-ground environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear HDPE Construction:\u003c\/strong\u003e Enables visibility of substrate for inspection and detailing during installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMoisture Isolation:\u003c\/strong\u003e Prevents moisture and salt transfer from masonry to internal finishes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible with Systems:\u003c\/strong\u003e Works with sump pumps, perimeter channels, and sealing accessories for full cavity drain systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable \u0026amp; Chemically Resistant:\u003c\/strong\u003e Resistant to alkalis, acids, bacteria, and fungi – ideal for long-term installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Details\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-Density Polyethylene (HDPE)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStud Height:\u003c\/strong\u003e 8mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e Approx. 0.6–0.7mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Clear\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRoll Size:\u003c\/strong\u003e Typically 2m x 20m (40m² per roll)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFixing Centres:\u003c\/strong\u003e 250mm with Biokil Crown Brick Plugs or Newton MultiPlugs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e BC8CLR\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eApplication Instructions\u003c\/h4\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrepare Substrate:\u003c\/strong\u003e Ensure wall or floor surface is stable and free from sharp projections or loose materials.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCut \u0026amp; Fit:\u003c\/strong\u003e Trim the membrane to size using a utility knife or shears, ensuring full coverage of the surface.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFixing:\u003c\/strong\u003e Use appropriate fixing plugs with seals at 250mm centres. Seal around plug heads if required using mastic.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSealing \u0026amp; Finishing:\u003c\/strong\u003e Overlap sheets by at least one stud column and seal with jointing tape or overtape. Connect to drainage or sump system as specified.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eLimitations\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNot suitable as a standalone waterproofing system without drainage provision.\u003c\/li\u003e\n  \u003cli\u003eInternal finishes should not be applied directly to the membrane without an appropriate air gap or lining system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eHealth \u0026amp; Safety\u003c\/h4\u003e\n\u003cp\u003e\n  Wear appropriate PPE during handling and installation. Use caution when cutting membrane edges. Refer to the Safety Data Sheet (SDS) for full safety information.\n\u003c\/p\u003e\n","brand":"DIY Refurb","offers":[{"title":"2m x 20m - 40sqm","offer_id":53341492642130,"sku":"CDM8220","price":162.6,"currency_code":"GBP","in_stock":true},{"title":"2.4m x 20m - 48sqm","offer_id":53341492674898,"sku":"CDM82420","price":199.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1060\/4006\/6386\/files\/Biokil_8mm-Membrane-Clear.webp?v=1777965837","url":"https:\/\/glazingsuppliesdirect.com\/products\/8mm-membrane-clear-biokil-crown","provider":"Glazing Supplies Direct","version":"1.0","type":"link"}