{"title":"Waterproofing Membranes","description":"\u003cp\u003eA waterproofing membrane is a continuous, impermeable barrier applied to a structure to prevent water ingress, water vapour transmission and, where required, ground gas infiltration. In below-ground construction, waterproof membranes form the primary line of defence protecting basements, substructures, retaining walls, podium decks and tunnels from groundwater and soil moisture that will otherwise penetrate concrete over time. Without an effective waterproofing membrane, below-ground structures are vulnerable to water ingress that causes structural deterioration, loss of internal environment quality and costly remediation work after construction is complete.\u003c\/p\u003e\n\u003cp\u003eStructural waterproofing membranes are specified under BS 8102:2009, the code of practice for protection of below-ground structures against water ingress. The standard defines three system types. Type A is barrier protection, delivered by an applied waterproof membrane that forms a continuous impermeable layer against the structure. All products in this range are suitable for use in Type A waterproofing systems as defined in BS 8102:2009 and cover the main product types used in basement waterproofing systems across residential and commercial construction.\u003c\/p\u003e\n\u003cp\u003eThe waterproofing membrane type required for any project depends on whether it is being applied to a new structure before the concrete is poured, or to an existing formed concrete structure after the pour. This is the primary specification decision, and choosing the wrong product type for the application is one of the most common and costly errors in structural waterproofing.\u003c\/p\u003e\n\u003ch2\u003ePre-Applied Waterproofing Membranes\u003c\/h2\u003e\n\u003cp\u003ePre-applied waterproofing membranes are positioned on the blinding concrete or against the formwork before the structural concrete is poured. As the concrete is placed, it bonds directly to the membrane, creating a fully bonded system that eliminates the risk of water tracking laterally behind the waterproofing layer if a point of failure occurs. They are the correct specification for new-build basements, raft foundations, ground-bearing slabs, pile caps and tunnels where no access to the external face will be available after the pour.\u003c\/p\u003e\n\u003cp\u003eOur pre-applied range includes bituminous, polyolefin and bentonite geocomposite options from GCP, Sika and Visqueen, covering standard waterproofing applications through to dual-function membranes that provide combined waterproofing and ground gas resistance within a single layer.\u003c\/p\u003e\n\u003ch2\u003ePost-Applied Self-Adhesive Waterproofing Membranes\u003c\/h2\u003e\n\u003cp\u003ePost-applied waterproofing membranes are applied to the formed external face of a concrete structure after the formwork has been struck and the concrete has cured. Self-adhesive sheet membranes bond directly to the prepared substrate without open flame or solvent. Wall waterproofing membrane applications are the primary use case: basement walls, retaining walls and the external faces of substructures where the formed surface is accessible after construction.\u003c\/p\u003e\n\u003cp\u003eOur post-applied range includes self-adhesive bituminous and polyolefin sheet membranes from GCP, Sika, RIW and Fosroc. The Visqueen Gas Resistant Self Adhesive Membrane also sits within this category, providing combined waterproofing and ground gas resistance where both are required within a single post-applied membrane layer.\u003c\/p\u003e\n\u003ch3\u003eInstalling a Structural Waterproofing Membrane\u003c\/h3\u003e\n\u003cp\u003eCorrect installation is as important as correct specification. A waterproofing membrane that is properly selected but poorly installed will fail, and the consequences of failure in a below-ground structure are expensive to remediate once the building is complete and backfilled.\u003c\/p\u003e\n\u003cp\u003eSurface preparation is the most critical stage for post-applied membranes. The concrete substrate must be sound, clean and free from laitance, contamination, sharp protrusions and voids before the waterproof membrane is applied. Any irregularity in the substrate compromises adhesion and creates potential water ingress paths that will not become apparent until the structure is in service.\u003c\/p\u003e\n\u003cp\u003eLaps between adjacent membrane sheets must be fully bonded and taken to the minimum overlap dimension specified by the manufacturer. Inadequate lapping at joints is one of the most common sources of waterproofing membrane failure on site and accounts for a significant proportion of post-construction leaks. The membrane must also be taken up to a minimum of 150mm above the finished external ground level to prevent water bridging the top of the waterproof membrane and entering the structure from above. Before backfilling, a protection board should be installed over the waterproofing membrane to prevent mechanical damage from stones, construction traffic and compaction plant.\u003c\/p\u003e\n\u003cp\u003eCommon waterproof membrane mistakes include inadequate surface preparation before application, poorly bonded laps at sheet joints, insufficient upstand height above ground level, failure to protect the membrane before backfill, and specifying a post-applied membrane for an application that requires a pre-applied system. All are avoidable at the specification and site supervision stage. A correctly specified and installed structural waterproofing membrane is designed to perform for the lifetime of the structure. Failures are almost always the result of installation or specification error rather than product failure.\u003c\/p\u003e\n\u003ch3\u003eChoosing the Right Waterproofing Membrane\u003c\/h3\u003e\n\u003cp\u003eThe first decision when selecting a waterproofing membrane is whether a pre-applied or post-applied product is required. For new-build basement waterproofing systems and other below-ground structures where the membrane must be in place before the concrete is poured and where the external face will not be accessible after the pour, a pre-applied membrane is required. For applications where the concrete is already formed and the external face of the wall or slab is accessible for direct membrane application, a post-applied self-adhesive sheet membrane is the appropriate product type.\u003c\/p\u003e\n\u003cp\u003eWhere a self-healing waterproofing membrane for concrete is specified, or where ground conditions are aggressive or contaminated, the Sika Bentoshield Max LM pre-applied bentonite system is suited to those requirements. Where the application involves both waterproofing and gas resistance on the same structure, the Visqueen Gas Resistant Self Adhesive Membrane covers both within a single post-applied product.\u003c\/p\u003e\n\u003cp\u003eWhich waterproofing membrane is best for a given project depends on the structure type, the stage of construction at which waterproofing is applied, the ground conditions and any secondary performance requirements such as gas resistance.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose Construction Supplies UK for Waterproofing Membranes\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eStructural waterproofing membranes for below-ground applications:\u003c\/strong\u003e From pre-applied systems for new-build basement waterproofing to post-applied self-adhesive membranes for retaining walls and substructures, we stock a range covering the main product types used in Type A barrier waterproofing systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTrusted industry brands:\u003c\/strong\u003e Shop leading manufacturers including Fosroc, GCP, RIW, Sika and Visqueen.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompetitive trade prices:\u003c\/strong\u003e Waterproofing membranes at competitive trade prices with no minimum order value.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFast UK-wide delivery:\u003c\/strong\u003e Reliable nationwide delivery with free shipping on orders over £300.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert support when you need it:\u003c\/strong\u003e Our team can help you choose the right waterproofing membrane for your project. Contact us at \u003cstrong\u003esales@constructionsuppliesuk.co.uk\u003c\/strong\u003e or call \u003cstrong\u003e03300 55 32 02.\u003c\/strong\u003e\u003c\/p\u003e","products":[{"product_id":"gcp-bituthene-8000","title":"GCP Bituthene 8000","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eGCP Bituthene 8000 delivers high-performance post-applied waterproofing for below-ground sub-structures. Its 1.52mm thick light grey HDPE composite film is engineered for superior strength and flexibility, and the light colour makes any accidental damage clearly visible, black compound showing through the grey film, making patch repairs straightforward and quality control easier on site. Printed overlap lines ensure minimum laps are consistently maintained.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe membrane is damp surface tolerant and can be used on green concrete, making it practical in typical below-ground construction conditions. Primer S2 must be applied to all surfaces except below-ground load bearing slabs and Preprufe membrane surfaces. All internal and external corners and penetrations must be detailed with Bituthene LM(E) liquid membrane before the sheet membrane is applied.\u003c\/p\u003e\n\u003cp\u003eBITUTHENE® 8000 Membrane for application to surfaces at ambient temperatures of -5°C to 20ºC \u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePrinted overlap lines for consistent minimum 50mm laps\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eChemically resistant, protects against aggressive soils, contaminated groundwater and hydrocarbons\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eDamp and green concrete tolerant\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eWater \u0026amp; vapour proof\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eGas resistant (BBA 2 points as a gas resistant barrier)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cspan\u003e70m hydrostatic pressure resistance with ultra low moisture transmission rate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cspan\u003eSmooth finish\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrimer S2 must be applied to all surfaces except below ground load bearing slabs\u003c\/li\u003e\n\u003cli\u003eTypical applications; external waterproofing of basement walls, retaining walls and foundations, below-ground sub-structures — BS 8102:2009 compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e \u003c\/p\u003e","brand":"GCP","offers":[{"title":"Default Title","offer_id":57127681032524,"sku":"BM05653","price":387.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/gcp-gcp-bituthene-8000-1232467443.jpg?v=1776263373"},{"product_id":"gcp-bituthene-8000s","title":"GCP Bituthene 8000s","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eGCP Bituthene 8000S delivers high-performance post-applied waterproofing for below-ground sub-structures in warmer site conditions. Its 1.52mm thick light grey HDPE composite film is engineered for superior strength and flexibility, and the light colour makes any accidental damage clearly visible — black compound showing through the grey film — making patch repairs straightforward and quality control easier on site. Printed overlap lines ensure minimum laps are consistently maintained.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe membrane is damp surface tolerant and can be used on green concrete, making it practical in typical below-ground construction conditions. Primer S2 must be applied to all surfaces except below-ground load bearing slabs and Preprufe membrane surfaces. All internal and external corners and penetrations must be detailed with Bituthene LM(E) liquid membrane before the sheet membrane is applied.\u003c\/p\u003e\n\u003cp\u003eBITUTHENE® 8000S Membrane for application to surfaces at ambient temperatures of 15°C to 35ºC\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePrinted overlap lines for consistent minimum 50mm laps\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eChemically resistant, protects against aggressive soils, contaminated groundwater and hydrocarbons\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eDamp and green concrete tolerant\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eWater \u0026amp; vapour proof\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eGas resistant (BBA 2 points as a gas resistant barrier)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cspan\u003e70m hydrostatic pressure resistance with ultra low moisture transmission rate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cspan\u003eSmooth finish\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrimer S2 must be applied to all surfaces except below ground load bearing slabs\u003c\/li\u003e\n\u003cli\u003eTypical applications; external waterproofing of basement walls, retaining walls and foundations, below-ground sub-structures — BS 8102:2009 compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e \u003c\/p\u003e","brand":"GCP","offers":[{"title":"Default Title","offer_id":57127681884492,"sku":"BM05654","price":406.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/gcp-gcp-bituthene-8000s-1232467442.jpg?v=1776263193"},{"product_id":"gcp-bituthene-gp-membrane","title":"GCP Bituthene GP Membrane","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eGCP Bituthene GP is an entry-level post-applied waterproofing membrane for low-risk below-ground situations such as single-skin basement walls and simple tanking details where hydrostatic pressure is minimal. Its self-adhesive rubber\/bitumen compound bonds directly to primed concrete and masonry substrates, with adjacent rolls overlapped a minimum of 50mm and firmly rolled to ensure continuity. Bituthene LM liquid membrane is applied at all corners and penetrations prior to laying the sheet.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eCold applied, self-adhesive, no flame, no heating, no torch-on equipment\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eResists up to 1m hydrostatic head when fully supported\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eResistant to most dilute acids and alkalis\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eFlexible accommodates minor settlement and shrinkage movement \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBBA certified\u003c\/li\u003e\n\u003cli\u003eProtection 03 board must be used immediately to protect the membrane from damage by other trades, backfill or construction materials.\u003c\/li\u003e\n\u003cli\u003eMinimum application temperature: +5°C\u003c\/li\u003e\n\u003cli\u003eTypical applications include; external waterproofing of basement walls and foundations, below-ground concrete and masonry structures with up to 1m hydrostatic head and cold-applied post-applied tanking on clean, dry, primed substrates\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GCP","offers":[{"title":"Default Title","offer_id":57127682867532,"sku":"BM05658","price":211.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/gcp-gcp-bituthene-gp-membrane-1232467455.jpg?v=1776261793"},{"product_id":"gcp-preprufe-300r","title":"GCP Preprufe 300R","description":"\u003cp\u003eGCP Preprufe 300R Plus is a 1.2mm heavy-duty HDPE pre-applied waterproofing membrane designed for horizontal below-slab applications on mud slabs, rafts and pile caps, and for vertical blind-side applications using single-sided formwork. Once concrete is poured directly against the membrane, Advanced Bond Technology™ creates a fully bonded, continuous watertight seal that eliminates lateral water migration — removing the need for compartmentalisation used with unbonded systems.\u003c\/p\u003e\n\u003cp\u003eThe ZipLap™ seam uses colour-coded ZipStrips™ (green and blue) to create a fast adhesive-to-adhesive overlap bond without heat, specialist tools or primers, making it practical year-round including in cold and wet conditions. The UV-resistant surface allows up to 56 days' exposure before concreting, offering useful programme flexibility.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eBenefits \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReduces cost and saves time, fast installation only 2 operators needed.\u003c\/li\u003e\n\u003cli\u003eNo primers sealants fillets or specialist equipment are required \u003c\/li\u003e\n\u003cli\u003eEasy detailing, the membrane is flexible in use but keeps its shape and conforms to corners and other construction details\u003c\/li\u003e\n\u003cli\u003eBecause the Preprufe 300R is a smooth membrane unlike fabric, mesh or fleece membranes, you are able to clean the surface before concreting to ensure a secure bond\u003c\/li\u003e\n\u003cli\u003eCold applied and single layer, no hot works double layers or protection screed\u003c\/li\u003e\n\u003cli\u003ePassive waterproofing – unlike bentonite based systems, does not rely on water exposure activation, is designed to be unaffected by most groundwater contaminants, rain or wet\/dry cycling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWater and vapour proofing for all basement grades to BS 8102:2009.\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGas resistance - PREPRUFE® 300R PLUS LT will restrict the ingress of methane, carbon dioxide and radon gases into buildings from landfill and naturally occurring sources and satisfy the performance criteria for a gas-resistant membrane, as defined in BS 8485:2015+A1:2019, Table 7. Independent test results available upon request\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003ePREPRUFE® 300R Plus membrane heavy-duty 1.2mm grade can be used in horizontal applications below concrete slabs and on rafts (i.e. mud slabs) and can be applied to vertical concrete substrates poured using blind side single sided formwork systems. PREPRUFE® 300R Plus Membrane is designed to accept the placing of heavy reinforcement using conventional concrete spacers.\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GCP","offers":[{"title":"Default Title","offer_id":57127687422284,"sku":"BM05668","price":1383.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/gcp-gcp-preprufe-300r-1232467461.png?v=1776260271"},{"product_id":"riw-gr-sheetseal","title":"RIW GR Sheetseal","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eRIW Sheetseal GR is a cold-applied sheet membrane combining a high density polyethylene film bonded to aluminium foil with a bitumen\/rubber self-adhesive layer and a removable reinforced silicone release paper. This multi-layer construction delivers both a robust waterproof membrane and a tested barrier against methane and carbon dioxide gas — making it the product of choice where ground gas is a concern alongside water ingress.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe product has been independently tested by Wimpey Laboratories for methane gas resistance, with results documented in the product data sheet. When correctly applied, Sheetseal GR provides Type A (barrier) protection capable of meeting the requirements for Grade 1, 2 and 3 basements as classified in BS8102:2009.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e \u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eFactory controlled thickness ensures consistent performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eSelvedge strip to improve lap sealing\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eElastic and flexible\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eWater and water vapour barrier\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eMethane and carbon dioxide barrier\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eSelf healing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSubject to normal conditions of use Sheetseal GR will provide an effective barrier to methane gas, water and water vapour for the life of the structure\u003c\/li\u003e\n\u003cli\u003eNo drying time\u003c\/li\u003e\n\u003cli\u003eSulphate resistant\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RIW","offers":[{"title":"Default Title","offer_id":57127693451596,"sku":"BM05733","price":497.65,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/riw-riw-gr-sheetseal-1232467508.jpg?v=1776259230"},{"product_id":"riw-sheetseal-9000-dpc-flexible-polymeric-damp-proof-course","title":"RIW Sheetseal 9000 DPC","description":"\u003cp\u003eRIW Sheetseal 9000 DPC is a high-performance flexible polymeric damp proof course sheet membrane, manufactured from a carefully formulated blend of thermoplastic polymers and additives. It delivers factory-controlled thickness, excellent tensile strength and outstanding elongation at break, combined with excellent low temperature flexibility — making it a dependable choice across a wide range of DPC applications in all seasons and conditions.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eSuitable for use in both solid and cavity wall construction, Sheetseal 9000 DPC provides reliable horizontal and vertical moisture control, including stepped configurations. Its flexibility and workability make it well suited for forming cavity trays, lintel trays, sill trays and parapet trays, where precise shaping and reliable water management are essential.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eSheetseal 9000 DPC is fully compatible with the wider RIW waterproofing system range and is BBA certified. A full range of accessories and tailored products is available to support complete and compliant DPC installations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eFactory controlled thickness\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eQuick \u0026amp; easy to install\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eGood tensile strength\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eexcellent low temperature flexibility\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eFully compatible with RIW waterproofing systems\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eExcellent mortar bond strength\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eFlexible and easy to handle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFully recycable\u003c\/li\u003e\n\u003cli\u003eDoesnt contain pitch, tar or bitumen\u003c\/li\u003e\n\u003cli\u003eDurable puncture resistant\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnaffected by extremes of temperature\u003c\/li\u003e\n\u003cli\u003eAll DPC's should be bedded onto fresh mortar, never dry bedded\u003c\/li\u003e\n\u003cli\u003eThe masonry laid over the dpc should also be bedded onto fresh mortar so that the DPC is approximately halfway through the thickness of the mortar joint. \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGround floor level DPC’s in external walls should be laid a minimum of 150mm above the adjacent ground level\u003c\/li\u003e\n\u003cli\u003eThe DPC must be at least as wide as the thickness of the wall. If the DPC is narrower, full protection cannot be achieved and moisture may track up the wall and past the\u003cbr\u003eDPC\u003c\/li\u003e\n\u003cli\u003eIf joints are required within the material, they must be lapped by a minimum of 100mm, including onto any accessories, and all laps sealed using jointing tape.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e \u003c\/p\u003e","brand":"RIW","offers":[{"title":"100mm","offer_id":57127698334028,"sku":"BM05751","price":34.8,"currency_code":"GBP","in_stock":true},{"title":"150mm","offer_id":57127698366796,"sku":"BM05752","price":52.25,"currency_code":"GBP","in_stock":true},{"title":"225mm","offer_id":57127698399564,"sku":"BM05753","price":78.33,"currency_code":"GBP","in_stock":true},{"title":"300mm","offer_id":57127698432332,"sku":"BM05754","price":104.5,"currency_code":"GBP","in_stock":true},{"title":"450mm","offer_id":57127698465100,"sku":"BM05755","price":157.65,"currency_code":"GBP","in_stock":true},{"title":"600mm","offer_id":57127698497868,"sku":"BM05756","price":208.24,"currency_code":"GBP","in_stock":true},{"title":"1000mm","offer_id":57127698530636,"sku":"BM012374","price":348.24,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/riw-riw-sheetseal-9000-dpc-1232467543.jpg?v=1776258589"},{"product_id":"riw-sheetseal-226","title":"RIW Sheetseal 226","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eSheetseal 226 is a cold-applied, self-adhesive sheet waterproofing membrane consisting of a high-density cross-orientated polyethylene film coated with a bitumen\/rubber adhesive layer and a removable reinforced silicone release paper. It provides a durable water and water vapour barrier for a wide range of below-ground and ground-level applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eTypically used for external and internal basement tanking, retaining walls, ground floor damp proof membranes and reservoirs, the membrane is particularly well suited to large unobstructed areas. Applied correctly, it is capable of providing the levels of protection required for Grade 1, 2 and 3 basements as classified under BS 8102:2009 (Type A barrier protection). It is suitable for application to concrete, masonry, steel and insulation board\/ICF systems.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe membrane is 1.6mm thick overall, with 300% elongation and a puncture resistance of 230N, providing a robust and flexible barrier that will perform for the life of the structure when correctly protected. A selvedge strip on each roll ensures clean, reliable lap sealing. Sheetseal 226 holds BBA Certificate No. 92\/2817 covering use for waterproofing above, at and below ground level.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eProvides a reliable water and water vapour barrier for basement tanking, retaining walls and ground floor DPM applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eCold-applied with no drying time required — installation can proceed immediately after laying\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eElastic and flexible with 300% elongation, accommodating minor substrate movement without compromising the waterproof seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eSelf-healing properties help maintain integrity if the membrane is punctured or damaged during installation\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eFactory-controlled thickness ensures consistent performance across the whole installation\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eSulphate resistant, making it suitable for use in aggressive ground conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e Do not attempt to apply the membrane at temperatures below +5°C — this applies to both the membrane and the primer\u003c\/li\u003e\n\u003cli\u003eA primer (Sheetseal Primer) must be applied to all vertical or inclined surfaces before laying — allow 2 to 4 hours drying time before overcoating, and do not leave the primed surface exposed for more than 7 days. Note: do not use Sheetseal Primer on insulation boards or ICF systems\u003c\/li\u003e\n\u003cli\u003eTo apply, progressively remove the release paper from one end of the roll and press the adhesive face firmly onto the prepared substrate, smoothing from the centre outwards to remove air pockets\u003c\/li\u003e\n\u003cli\u003eSide laps should be a minimum of 50mm and end laps a minimum of 100mm — all laps should be rolled with a hard roller to ensure good adhesion\u003c\/li\u003e\n\u003cli\u003eThe membrane must be protected from UV light within 28 days of application — it is not designed to be left permanently exposed\u003c\/li\u003e\n\u003cli\u003eRolls are available in three widths: 1050mm x 19.05m, 300mm x 20m and 150mm x 20m, the narrower rolls are particularly useful for angles, corners and projections\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RIW","offers":[{"title":"Default Title","offer_id":57127704232268,"sku":"BM003482","price":248.24,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/riw-riw-sheetseal-226-1232467557.jpg?v=1776257712"},{"product_id":"sika-bentoshield-max-lm","title":"Sika Bentoshield Max LM","description":"\u003cp\u003eSika BentoShield Max LM is a factory pre-hydrated, needle-punched polyethylene (PE) flexible membrane that uses the unique self-healing properties of sodium bentonite clay to provide robust, long-term waterproofing for below-ground structures.\u003c\/p\u003e\n\u003cp\u003eThe membrane is fully bonded to the concrete structure through a combination of the bentonite clay activating in contact with water and the PE fleece integrating with the concrete. The pre-hydration of the bentonite means it activates and seals immediately without requiring the ingress of groundwater — providing waterproofing protection from day one.\u003c\/p\u003e\n\u003cp\u003eSika BentoShield Max LM is suitable for basement slabs, walls, and retaining structures, and can act as a barrier to radon and ground gases when correctly installed. It is a Type A external barrier system in accordance with BS 8102:2009.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSelf-healing — pre-hydrated sodium bentonite at ≥5,000 g\/m² swells on contact with water to automatically re-seal minor punctures and damage up to 2 mm in size\u003c\/li\u003e\n\u003cli\u003eQualified waterproofing tanking membrane in accordance with BS8102:2022\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWater tightness of the laps tested to BS EN 1928\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eDesigned to offer protection in areas subject to changing geological conditions such as flood plains, areas of soil settlement and brown field constructions.\u003c\/li\u003e\n\u003cli\u003eAn effective barrier against ground water in saline environments.\u003c\/li\u003e\n\u003cli\u003eEasy to install, no primers or protection boards required.\u003c\/li\u003e\n\u003cli\u003eCan be applied in temperatures below 0°C\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCan be applied during conditions of high humidity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e0.3mm PE backing gives effective Radon barrier in accordance with BRE211.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know \u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCan be placed within the formwork.\u003c\/li\u003e\n\u003cli\u003eCan be used in below structural reinforced concrete slabs and below ground reinforced concrete structures.\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSika® BentoShield® Max LM should only be applied after the successful preparation of the substrate is completed\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eWhen placing Sika® BentoShield® Max LM inside the formwork, the formwork must be removable \u0026amp; not the stay in-situ variety.\u003c\/li\u003e\n\u003cli\u003eSika® BentoShield® Max LM products are not designed to be installed over ice or in standing water. Should the ground water contain strong acids, alkalies, or has a conductivity of 2,500 μmhos\/cm or greater, water samples should be tested for compatibility.\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRolls may compress slightly during storage. Membrane can be shaken once unrolled to return to their full length.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlways check the BentoShield  Method Statement - available in the Technical Information section on this page.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sika","offers":[{"title":"Default Title","offer_id":57127706984780,"sku":"BM05894","price":114.44,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/sika-building-consumables-sika-bentoshield-max-lm-1232467130.webp?v=1776262575"},{"product_id":"sikaproof-p-12","title":"SikaProof P-12 Waterproofing Membrane","description":"\u003cp\u003eSikaProof P-12 is a 1.2mm thick flexible polyolefin (FPO) waterproofing membrane for below-ground applications including basements, tunnels, and underground car parks. Unlike the A+ range, SikaProof P-12 is a looser-laid or mechanically fastened sheet rather than a fully bonded system.\u003c\/p\u003e\n\u003cp\u003eThe membrane is CE marked to EN 13967 and provides reliable long-term waterproofing protection as a Type A barrier in accordance with BS 8102:2009. It is suitable for use against positive water pressure on new-build below-ground structures.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePost applied fully bonded FPO membrane, specifically designed for application to existing hardened reinforced concrete structures.\u003c\/li\u003e\n\u003cli\u003ePeel \u0026amp; stick self adhesive installation\u003c\/li\u003e\n\u003cli\u003eNo lateral water migration, fully bonded to the substrate prevents water tracking between the membrane and structure\u003c\/li\u003e\n\u003cli\u003e1.2mm membrane thickness, robust and durable for below ground applications\u003c\/li\u003e\n\u003cli\u003eHigh flexibility and crack bridging capability, accommodates minor substrate movement.\u003c\/li\u003e\n\u003cli\u003eGround gas and radon resistant, restricts the ingress of radon into buildings from naturally occurring sources\u003c\/li\u003e\n\u003cli\u003eCold applied, no heat required\u003c\/li\u003e\n\u003cli\u003edurable and resistant to ageing validated water tightness (WISSBAU Test Report No. 2013-253)\u003c\/li\u003e\n\u003cli\u003eResistant to aggressive elements in natural groundwater and soil\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConcrete substrate must be sound with a minimum compressive strength of 25 N\/mm² and minimum tensile strength of 1.5 N\/mm²\u003c\/li\u003e\n\u003cli\u003eSubstrate must be even level clean and dry\u003c\/li\u003e\n\u003cli\u003eSubstrate temperature must be 3°C above dew point to avoid condensation\u003c\/li\u003e\n\u003cli\u003eSikaProof primer must be used.\u003c\/li\u003e\n\u003cli\u003eP-12 is not permanently UV \u0026amp; weather resistant.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Sika","offers":[{"title":"Default Title","offer_id":57127709901132,"sku":"BM05845","price":1176.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/sika-sikaproof-p-12-waterproofing-membrane-1232467140.webp?v=1776257609"},{"product_id":"sikaproof-a-12-ro-1m-x-20m","title":"SikaProof A+ 12  | 1m x 20m","description":"\u003cp\u003eSikaProof A+ 12 is the heavy-duty 1.2mm version of Sika's A+ membrane system, providing a total system thickness of 1.75mm. It is designed for below-ground waterproofing where higher physical resistance is required — such as beneath heavily loaded raft foundations or in areas with aggressive ground conditions.\u003c\/p\u003e\n\u003cp\u003eLike the A+ 08 grade, the membrane forms a full and permanent dual bond with the structural concrete, preventing lateral water migration between the membrane and the structure. It can be applied pre-cast (laid before reinforcement and concrete) or post-cast to existing concrete surfaces.\u003c\/p\u003e\n\u003cp\u003eThe product is suitable for use as a methane, carbon dioxide, and radon resistant membrane when installed in accordance with BS 8485:2015+A1:2019. It is CE marked to EN 13967 and holds a BBA Agrément Certificate, making it suitable for specification on projects requiring third-party certified waterproofing.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1.2mm membrane thickness for greater physical resistance and durability\u003c\/li\u003e\n\u003cli\u003eFull dual bond (mechanical + chemical) prevents lateral water underflow\u003c\/li\u003e\n\u003cli\u003ePre- or post-applicable for programme flexibility\u003c\/li\u003e\n\u003cli\u003eGround gas (methane, CO₂) and radon resistant per BS 8485:2015+A1:2019\u003c\/li\u003e\n\u003cli\u003eCold-applied installation — no naked flame required\u003c\/li\u003e\n\u003cli\u003eBBA Agrément certified and CE marked to EN 13967\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFast \u0026amp; easy installation reducing labour costs and time\u003c\/li\u003e\n\u003cli\u003eGood resistance to aggressive conditions in natural ground water and soil\u003c\/li\u003e\n\u003cli\u003eCan be combined with other Sika waterproofing and joint sealing systems\u003c\/li\u003e\n\u003cli\u003eSuitable for horizontal and vertical below-ground applications.\u003c\/li\u003e\n\u003cli\u003e Joints are thermally welded or sealed with SikaProof A+ tape.\u003c\/li\u003e\n\u003cli\u003e Apply to a stable, smooth substrate; ponding water must be avoided\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sika","offers":[{"title":"Default Title","offer_id":57127720550732,"sku":"BM05771","price":788.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/sika-sikaproof-a-12-1m-x-20m-1232467223.webp?v=1776256189"},{"product_id":"sikaproof-a-08-2m-x-25m","title":"SikaProof A+ 08 | 2m x 25m","description":"\u003cp\u003eSikaProof A+ 08 is a 0.8mm thick polyolefin (FPO) based sheet membrane designed for below-ground waterproofing of reinforced concrete structures. A special hybrid bonding layer on the membrane forms a full and permanent dual bond — both mechanical and chemical — with the concrete structure, preventing lateral water migration beneath the membrane even in the event of local damage.\u003c\/p\u003e\n\u003cp\u003eThe membrane can be pre-applied (laid before concrete is poured) or post-applied to existing concrete, offering flexibility to suit project programme. Joints are sealed using cold-applied self-adhesive tapes or by thermal jointing with appropriate heating equipment. The total system thickness is 1.35mm.\u003c\/p\u003e\n\u003cp\u003eSikaProof A+ 08 can be used as a ground gas resistant barrier when installed in accordance with BS 8485:2015+A1:2019, and will also restrict the ingress of radon from naturally occurring sources. It is suitable for use on basement slabs, walls, raft foundations, and other below-ground concrete structures.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDual bond, giving a full and permanent mechanical and chemical bond with the concrete structure \u003c\/li\u003e\n\u003cli\u003eCan be used in a pre \u0026amp; post applied system \u003c\/li\u003e\n\u003cli\u003eNo lateral water migration between concrete and membrane\u003c\/li\u003e\n\u003cli\u003eHighly flexible and crack-bridging capabilities\u003c\/li\u003e\n\u003cli\u003eHigh water tightness\u003c\/li\u003e\n\u003cli\u003eCan be used as a ground resistant membrane when installed as a waterproofing \u003c\/li\u003e\n\u003cli\u003eWill restrict the ingress of radon into buildings from naturally occurring sources\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFast \u0026amp; easy installation reducing labour costs and time\u003c\/li\u003e\n\u003cli\u003eGood resistance to aggressive conditions in natural ground water and soil\u003c\/li\u003e\n\u003cli\u003eCan be combined with other Sika waterproofing and joint sealing systems\u003c\/li\u003e\n\u003cli\u003eApply to a smooth, clean substrate free from sharp protrusions\u003c\/li\u003e\n\u003cli\u003eLaps are sealed with self-adhesive SikaProof Tape A+ N or by thermal jointing.\u003c\/li\u003e\n\u003cli\u003eMinimum application temperature +5°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is an FPO sheet membrane for pre and post applied fully bonded below ground waterproofing. The polyolefin or FPO is designed for below ground reinforced concrete structures.  A special hybrid bonding layer on the membrane forms a full and permanent dual bond with the concrete structure. \u003c\/p\u003e\n\u003cp\u003eOffers damp proofing, waterproofing and concrete protection for basements and other below ground concrete structures.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDual bond, giving a full and permanent mechanical and chemical bond with the concrete structure \u003c\/li\u003e\n\u003cli\u003eCan be used in a pre \u0026amp; post applied system \u003c\/li\u003e\n\u003cli\u003eNo lateral water migration between concrete and membrane\u003c\/li\u003e\n\u003cli\u003eHighly flexible and crack-bridging capabilities\u003c\/li\u003e\n\u003cli\u003eHigh water tightness\u003c\/li\u003e\n\u003cli\u003eCan be used as a ground resistant membrane when installed as a waterproofing \u003c\/li\u003e\n\u003cli\u003eWill restrict the ingress of radon into buildings from naturally occurring sources\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFast \u0026amp; easy installation reducing labour costs and time\u003c\/li\u003e\n\u003cli\u003eGood resistance to aggressive conditions in natural ground water and soil\u003c\/li\u003e\n\u003cli\u003eCan be combined with other Sika waterproofing and joint sealing systems\u003c\/li\u003e\n\u003cli\u003ePre-applied system SikaProof® A+ 08, SikaProof® Tape A+ SikaProof® Sandwich Tape\u003c\/li\u003e\n\u003cli\u003ePost applied system SikaProof® Primer-02 SikaProof® Adhesive-02 SikaProof® A+ 08 SikaProof® ExTape-100\u003c\/li\u003e\n\u003cli\u003eFind out more about the science behind \u003ca href=\"https:\/\/youtu.be\/k0KKoPYK1bU?si=kMggr60h0EylxC1R\" title=\"Youtube video for SikaProof A +\"\u003eSikaProof A+\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sika","offers":[{"title":"Default Title","offer_id":57127720583500,"sku":"BM05770","price":1467.12,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/sika-sikaproof-a-08-2m-x-25m-1232467224.webp?v=1776256153"},{"product_id":"sikaproof-a-08-1m-x-25m","title":"SikaProof A+ 08 | 1m x 25m","description":"\u003cp\u003eSikaProof A+ 08 is a 0.8mm thick polyolefin (FPO) based sheet membrane designed for below-ground waterproofing of reinforced concrete structures. A special hybrid bonding layer on the membrane forms a full and permanent dual bond — both mechanical and chemical — with the concrete structure, preventing lateral water migration beneath the membrane even in the event of local damage.\u003c\/p\u003e\n\u003cp\u003eThe membrane can be pre-applied (laid before concrete is poured) or post-applied to existing concrete, offering flexibility to suit project programme. Joints are sealed using cold-applied self-adhesive tapes or by thermal jointing with appropriate heating equipment. The total system thickness is 1.35mm.\u003c\/p\u003e\n\u003cp\u003eSikaProof A+ 08 can be used as a ground gas resistant barrier when installed in accordance with BS 8485:2015+A1:2019, and will also restrict the ingress of radon from naturally occurring sources. It is suitable for use on basement slabs, walls, raft foundations, and other below-ground concrete structures.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDual bond, giving a full and permanent mechanical and chemical bond with the concrete structure \u003c\/li\u003e\n\u003cli\u003eCan be used in a pre \u0026amp; post applied system \u003c\/li\u003e\n\u003cli\u003eNo lateral water migration between concrete and membrane\u003c\/li\u003e\n\u003cli\u003eHighly flexible and crack-bridging capabilities\u003c\/li\u003e\n\u003cli\u003eHigh water tightness\u003c\/li\u003e\n\u003cli\u003eCan be used as a ground resistant membrane when installed as a waterproofing \u003c\/li\u003e\n\u003cli\u003eWill restrict the ingress of radon into buildings from naturally occurring sources\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFast \u0026amp; easy installation reducing labour costs and time\u003c\/li\u003e\n\u003cli\u003eGood resistance to aggressive conditions in natural ground water and soil\u003c\/li\u003e\n\u003cli\u003eCan be combined with other Sika waterproofing and joint sealing systems\u003c\/li\u003e\n\u003cli\u003eApply to a smooth, clean substrate free from sharp protrusions\u003c\/li\u003e\n\u003cli\u003eLaps are sealed with self-adhesive SikaProof Tape A+ N or by thermal jointing.\u003c\/li\u003e\n\u003cli\u003eMinimum application temperature +5°C\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sika","offers":[{"title":"Default Title","offer_id":57127720649036,"sku":"BM05769","price":762.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/sika-sikaproof-a-08-1m-x-25m-1232467225.webp?v=1776256093"},{"product_id":"fosroc-proofex-engage","title":"Fosroc Proofex Engage","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eFosroc Proofex Engage comprises a blended polyethylene\/polypropylene membrane with a cell mesh bonded to one face. When concrete is poured onto the membrane, it flows into the cell mesh and locks permanently to the membrane — creating a fully bonded, anti-tracking system that cannot delaminate or allow water to migrate laterally between the membrane and the structure, even in the event of ground settlement.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe membrane is supplied with a self-adhesive selvedge along one edge to provide sealed laps, and requires no primer or protection board. Blinding concrete may be eliminated, simplifying the construction sequence. The product is inert and will not react with ponded water prior to the concrete pour. For cold weather working below +5°C, additional measures are required — contact Fosroc for guidance. Once exposed, the membrane should not be left unprotected for more than 6 to 8 weeks in high temperature or high humidity conditions.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eUnique cell mesh system, concrete interlocks to form a permanent mechanical bond\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eAnti-tracking design,  prevents lateral water migration between membrane and structure\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNo primer or protection board required, blinding concrete may be eliminated\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eInert, no reaction risk with ponded water prior to concrete pour\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eWatertight at 6m head\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eRoot resistant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWaterproofing to BS 8102:2009 Grades 1, 2 and 3\u003c\/li\u003e\n\u003cli\u003eType A (Barrier) waterproofing protection\u003c\/li\u003e\n\u003cli\u003eBBA Certificate No. 03\/4042\u003c\/li\u003e\n\u003cli\u003eMethane and CO2 protection to BRE Report 212\u003c\/li\u003e\n\u003cli\u003eRadon protection to BRE Report 211\u003c\/li\u003e\n\u003cli\u003eCrack bridging up to 5mm (100 cycles) ASTM C1305 modified\u003c\/li\u003e\n\u003cli\u003eStore flat, cool and dry, away from sunlight\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fosroc","offers":[{"title":"Default Title","offer_id":57145936970060,"sku":"BM05960","price":976.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/fosroc-fosroc-proofex-engage-1232467358.png?v=1776256011"},{"product_id":"newton-402-hydrobond-external-waterproofing-membrane","title":"Newton 402 HydroBond External Waterproofing Membrane","description":"\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"markdown markdown-main-panel stronger enable-updated-hr-color\" id=\"model-response-message-contentr_935ab606bcd817b7\" aria-live=\"polite\" aria-busy=\"false\" dir=\"ltr\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNewton 402 HydroBond is a high-performance, cold-applied waterproof membrane specifically engineered for the external protection of basement walls and retaining structures. This \"Type A\" waterproofing solution consists of a thick, highly elastic polymer-modified bitumen layer bonded to a tough, cross-laminated polyethylene film. Unlike pre-applied systems, the 402 is designed for post-application to the exterior of the structure, providing a seamless and flexible barrier that can bridge shrinkage cracks in the concrete. Its self-adhesive backing ensures a secure bond to the substrate, preventing water tracking and protecting the building from groundwater pressure and moisture penetration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"7,0,0\"\u003eFully bonded seamless barrier prevents water from tracking between the membrane and the wall\u003c\/li\u003e\n\u003cli data-path-to-node=\"7,1,0\"\u003eExceptional flexibility and elasticity allows the membrane to bridge minor cracks in the concrete\u003c\/li\u003e\n\u003cli data-path-to-node=\"7,2,0\"\u003eCold-applied and self-adhesive for a safer and faster installation without the need for torches\u003c\/li\u003e\n\u003cli data-path-to-node=\"7,3,0\"\u003eTough cross-laminated carrier film provides high resistance to impact and puncture during backfilling\u003c\/li\u003e\n\u003cli data-path-to-node=\"7,4,0\"\u003eProvides immediate protection against groundwater and aggressive chemicals found in the soil\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"9,0,0\"\u003eSpecifically designed for vertical application to the external face of foundation walls\u003c\/li\u003e\n\u003cli data-path-to-node=\"9,1,0\"\u003eSubstrate should be primed with Newton 401 Rubberbond Primer for maximum adhesion\u003c\/li\u003e\n\u003cli data-path-to-node=\"9,2,0\"\u003eShould be protected with a drainage layer or protection board before backfilling the soil\u003c\/li\u003e\n\u003cli data-path-to-node=\"9,3,0\"\u003eAvailable in easy-to-handle rolls for efficient application on site\u003c\/li\u003e\n\u003cli data-path-to-node=\"9,4,0\"\u003eSuitable for use in high water table areas and various ground conditions\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Newton Waterproofing","offers":[{"title":"Default Title","offer_id":57210732347724,"sku":"BM06075","price":292.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/newton-waterproofing-newton-402-hydrobond-external-waterproofing-membrane-1232467337.png?v=1776255731"},{"product_id":"newton-403-hydrobond-pre-applied-waterproofing-membrane","title":"Newton 403 HydroBond Pre-Applied Waterproofing Membrane","description":"\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"markdown markdown-main-panel stronger enable-updated-hr-color\" id=\"model-response-message-contentr_935ab606bcd817b7\" aria-live=\"polite\" aria-busy=\"false\" dir=\"ltr\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNewton 403 HydroBond is a high-performance, self-healing waterproofing membrane designed for pre-applied use beneath concrete foundation slabs and against permanent formwork. This Type A waterproofing solution features a unique hydrophilic core that swells slightly on contact with water, ensuring any minor punctures or small cracks in the concrete are automatically sealed. The membrane is engineered to provide a mechanical bond to the poured concrete, preventing water from tracking between the membrane and the structure. It is highly resistant to ground gases, including radon and methane, making it an essential barrier for new-build basements, foundation rafts, and civil engineering projects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"3,0,0\"\u003eSelf-healing properties automatically seal small punctures and cracks to maintain a watertight barrier\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,1,0\"\u003eMechanical bond to poured concrete prevents water tracking between the membrane and the structure\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,2,0\"\u003eProvides a robust barrier against harmful ground gases including Radon and Methane\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,3,0\"\u003eHigh resistance to hydrostatic pressure ensures reliable performance in deep foundations\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,4,0\"\u003eFlexible and durable construction allows for easy installation around complex corners and detailing\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"5,0,0\"\u003eSupplied in various roll sizes to suit specific project requirements and layout needs\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,1,0\"\u003eShould be installed on a prepared sub-base or permanent formwork before concrete is poured\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,2,0\"\u003eCan be used in conjunction with HydroBond 402 for comprehensive system performance\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,3,0\"\u003eSuitable for use in all types of ground conditions and water tables\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,4,0\"\u003eRequires specific HydroBond sealing tapes and accessories for jointing and detailing\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Newton Waterproofing","offers":[{"title":"Default Title","offer_id":57210817151308,"sku":"BM06076","price":464.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/newton-waterproofing-newton-403-hydrobond-pre-applied-waterproofing-membrane-1232467336.jpg?v=1776255709"},{"product_id":"newton-hydrobond-sa-external-waterproofing-membrane","title":"Newton HydroBond SA External Waterproofing Membrane","description":"\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"markdown markdown-main-panel stronger enable-updated-hr-color\" id=\"model-response-message-contentr_935ab606bcd817b7\" aria-live=\"polite\" aria-busy=\"false\" dir=\"ltr\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNewton HydroBond SA is a high-performance, self-adhesive \"Type A\" waterproofing membrane designed for the external protection of below-ground structures such as basements, retaining walls, and water-holding tanks. This robust sheet membrane is a composite of cross-oriented HDPE film and a thick bitumen-polymer adhesive, providing a tough and impact-resistant barrier. It is specifically engineered for post-application to concrete, blockwork, or Insulated Concrete Formwork (ICF) once the walls are built. The advanced adhesive formula ensures a high-strength, fully-bonded seal even in temperatures as low as 5°C, effectively preventing water from tracking between the membrane and the structure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"8,0,0\"\u003eFully-bonded system prevents water migration behind the membrane in the event of a puncture\u003c\/li\u003e\n\u003cli data-path-to-node=\"8,1,0\"\u003eHigh flexibility and elongation allow the membrane to bridge minor cracks and settlement in the structure\u003c\/li\u003e\n\u003cli data-path-to-node=\"8,2,0\"\u003eCold-applied and self-adhesive for a safe and fast installation without the need for heat or torches\u003c\/li\u003e\n\u003cli data-path-to-node=\"8,3,0\"\u003eTough cross-oriented HDPE carrier film provides excellent resistance to site impact and punctures\u003c\/li\u003e\n\u003cli data-path-to-node=\"8,4,0\"\u003eAdvanced adhesive achieves a reliable, high-strength bond at temperatures as low as 5°C\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"10,0,0\"\u003eSupplied in 1.05m x 19.05m rolls providing approximately 20 square metres of coverage\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,1,0\"\u003eAll substrates should be primed with Newton HydroBond SA Primer LT (401P) to ensure maximum adhesion\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,2,0\"\u003eCompatible with HydroBond 403 pre-applied membranes to create a continuous waterproof envelope\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,3,0\"\u003eHighly resistant to aggressive groundwater chemicals typically found in urban and brownfield sites\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,4,0\"\u003eOverlaps are designed to be self-sealing, meaning no additional jointing tapes are required for standard laps\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Newton Waterproofing","offers":[{"title":"Default Title","offer_id":57211026309452,"sku":"BM06077","price":229.91,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/newton-waterproofing-newton-hydrobond-sa-external-waterproofing-membrane-1232467335.jpg?v=1776255690"},{"product_id":"newton-hydrobond-sagm-external-waterproofing-gas-membrane","title":"Newton HydroBond SAGM External Waterproofing \u0026 Gas Membrane","description":"\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"markdown markdown-main-panel stronger enable-updated-hr-color\" id=\"model-response-message-contentr_935ab606bcd817b7\" aria-live=\"polite\" aria-busy=\"false\" dir=\"ltr\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNewton HydroBond SAGM is a high-performance, self-adhesive \"Type A\" membrane specifically designed to provide both external waterproofing and robust gas proofing for below-ground structures. This versatile sheet membrane is a composite of cross-oriented HDPE film and a thick bitumen-polymer adhesive, engineered for post-application to concrete, blockwork, or Insulated Concrete Formwork (ICF) walls. In addition to preventing water ingress, the SAGM version provides a certified barrier against harmful ground gases, including Radon, Methane, and Carbon Dioxide. Its advanced adhesive formula ensures a high-strength, fully-bonded seal even in temperatures as low as 5°C, effectively eliminating the risk of water or gas tracking between the membrane and the structure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"3,0,0\"\u003eDual-action protection provides a reliable barrier against both groundwater and hazardous ground gases\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,1,0\"\u003eFully-bonded system prevents water or gas migration behind the membrane in the case of a puncture\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,2,0\"\u003eHigh flexibility and elongation allow the membrane to bridge minor cracks and settlement in the structure\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,3,0\"\u003eCold-applied and self-adhesive for a safe, fast installation without the need for specialist heat equipment\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,4,0\"\u003eAdvanced adhesive achieves a high-strength bond at temperatures as low as 5°C for year-round application\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"5,0,0\"\u003eSupplied in 1.00m x 20.00m rolls providing 20 square metres of coverage\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,1,0\"\u003eProduct code 401-GM\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,2,0\"\u003eSubstrates must be prepared with Newton HydroBond SA Primer LT to ensure maximum adhesion\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,3,0\"\u003eCompatible with HydroBond SAGM Detail Strip for reinforcing wall-to-foundation joints and corners\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,4,0\"\u003eHighly resistant to aggressive groundwater chemicals and soil contaminants\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Newton Waterproofing","offers":[{"title":"Default Title","offer_id":57211599716684,"sku":"BM06078","price":296.44,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/newton-waterproofing-newton-hydrobond-sagm-external-waterproofing-gas-membrane-1232467334.jpg?v=1776255674"},{"product_id":"newton-hydrobond-410-geodrain","title":"Newton HydroBond 410 GeoDrain","description":"\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"markdown markdown-main-panel stronger enable-updated-hr-color\" id=\"model-response-message-contentr_935ab606bcd817b7\" aria-live=\"polite\" aria-busy=\"false\" dir=\"ltr\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNewton HydroBond 410 GeoDrain is a two-core external drainage membrane designed to manage groundwater and relieve hydrostatic pressure on earth-retained structures. It consists of a water-impermeable HDPE (High-Density Polyethylene) drainage core with a non-woven geotextile filter layer thermally welded to the face. The geotextile layer filters out suspended soil particles, preventing the drainage core from clogging, while the HDPE core allows water to flow freely to a suitable land drain or collector pipe. When used as part of a \"Type A\" waterproofing system, it acts as both a drainage layer and a slip membrane, protecting the primary waterproofing layer from stresses during backfilling.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"3,0,0\"\u003eSignificantly reduces hydrostatic pressure by directing groundwater away from the structure\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,1,0\"\u003eHigh compressive strength (420 kPa) ensures the drainage channel remains open even under heavy soil loads\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,2,0\"\u003eIntegrated geotextile filter prevents soil fines from entering and blocking the drainage system\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,3,0\"\u003eFunctions as a slip membrane to protect primary waterproofing coatings during backfilling and soil settlement\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,4,0\"\u003eExtremely durable and resistant to all chemicals commonly found in groundwater and soil\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"5,0,0\"\u003eSupplied in rolls of 2.0m x 12.5m (Product Code: M18)\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,1,0\"\u003eTotal roll area is 25m²\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,2,0\"\u003eFeatures a total thickness of 11.3mm (at 2kPa pressure)\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,3,0\"\u003eShould be used in conjunction with a primary waterproofing membrane like HydroBond 403 Plus or HydroBond 109-LM\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,4,0\"\u003eQuick and easy to install; can be capped at the top edge using the HydroBond 410 Geo Profile (Code: A15)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Newton Waterproofing","offers":[{"title":"Default Title","offer_id":57213242573132,"sku":"BM06083","price":191.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/newton-waterproofing-newton-hydrobond-410-geodrain-1232467329.jpg?v=1776255569"},{"product_id":"newton-dampsafe-603-loose-laid-flooring-membrane","title":"Newton DampSafe 603 Loose Laid Flooring Membrane","description":"\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"markdown markdown-main-panel stronger enable-updated-hr-color\" id=\"model-response-message-contentr_935ab606bcd817b7\" aria-live=\"polite\" aria-busy=\"false\" dir=\"ltr\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNewton DampSafe 603 is a high-quality, 3mm-stud flooring membrane designed for use over both new and existing floors. The 3mm studs create a small air gap that allows for the pressure equalization of dampness within the substrate. This moisture is then able to dissipate at the room perimeter, facilitating the gradual drying of the floor. It is particularly effective at isolating floor finishes from substrate movement and dampness, making it a versatile choice for residential and commercial applications, including performance sports floors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"3,0,0\"\u003eAllows for the dissipation of moisture at room perimeters to aid floor drying\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,1,0\"\u003eHigh compressive stability makes it suitable for heavy pedestrian traffic and sports flooring\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,2,0\"\u003eEffectively isolates the floor finish from any movement in the substrate below\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,3,0\"\u003eHighly resistant to water, alkalines, saline solutions, and organic acids\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,4,0\"\u003eInert and rot-proof, providing long-term protection against biological growth\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"5,0,0\"\u003eSupplied in rolls of 2.0m x 20m (40m² coverage)\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,1,0\"\u003eProduct Code: M23\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,2,0\"\u003eFeatures a transparent\/white finish\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,3,0\"\u003eCan be used as the floor membrane within a Newton CDM system if specified by a specialist\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,4,0\"\u003eIdeally suited for use alongside Newton damp proofing wall membranes for a complete room solution\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Newton Waterproofing","offers":[{"title":"Default Title","offer_id":57222492094796,"sku":"BM06098","price":140.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/newton-waterproofing-newton-dampsafe-603-loose-laid-flooring-membrane-1232467321.jpg?v=1776255390"},{"product_id":"newton-dampsafe-601-slimline-flooring-membrane","title":"Newton DampSafe 601 Slimline Flooring Membrane","description":"\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"markdown markdown-main-panel stronger enable-updated-hr-color\" id=\"model-response-message-contentr_935ab606bcd817b7\" aria-live=\"polite\" aria-busy=\"false\" dir=\"ltr\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNewton DampSafe 601 Slimline is a high-grade, flat, loose-laid flooring membrane designed to isolate moisture-sensitive floor finishes from dampness in the substrate. Unlike studded membranes, DampSafe 601 is flat, making it exceptionally thin while remaining incredibly strong. It is specifically engineered to be installed over \"green\" or uncured concrete slabs as soon as they are walkable, significantly accelerating construction timelines. Its extreme compressive strength (over 1000 kPa) also allows it to be used as a high-load damp proof course (DPC) within structural block walls, providing a versatile solution for both floor and wall applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"3,0,0\"\u003eAccelerated construction: can be laid over uncured concrete as soon as it is walkable\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,1,0\"\u003eExceptional load-bearing capacity, exceeding 1000kN\/m², suitable for heavy industrial use\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,2,0\"\u003eEffectively isolates sensitive flooring from moisture and alkalinity in the slab\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,3,0\"\u003eMulti-functional: serves as both a high-performance DPM and a high-load structural DPC\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,4,0\"\u003eHighly resistant to chemicals, salts, and biological growth (bacteria and fungi)\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"5,0,0\"\u003eSupplied in rolls of 2.08m x 20m (covering approx. 40m²)\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,1,0\"\u003eProduct Code: M6\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,2,0\"\u003eDistinctive grey color for easy identification on site\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,3,0\"\u003eCan be used as the floor membrane within the Newton CDM System if no hydrostatic pressure is expected through the slab\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,4,0\"\u003eIdeal for refurbishment projects over contaminated or damp existing floors\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Newton Waterproofing","offers":[{"title":"Default Title","offer_id":57223424868684,"sku":"BM06100","price":207.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/newton-waterproofing-newton-dampsafe-601-slimline-flooring-membrane-1232467319.jpg?v=1776255409"},{"product_id":"newton-cdm-508-mesh-membrane","title":"Newton CDM 508 Mesh Membrane","description":"\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"markdown markdown-main-panel stronger enable-updated-hr-color\" id=\"model-response-message-contentr_935ab606bcd817b7\" aria-live=\"polite\" aria-busy=\"false\" dir=\"ltr\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eNewton CDM 508 Mesh Membrane is a high-quality, 8mm stud cavity drain waterproofing membrane featuring a thermally welded polyethylene mesh on its face. This mesh provides an excellent mechanical key for plasters, renders, or dot-and-dab plasterboard, making it the ideal choice for waterproofing walls where a direct internal finish is required. As a core component of the Newton CDM System, it works by allowing water to depressurize behind the membrane and manage it safely to a drainage point. It is highly durable, rot-proof, and resistant to the various chemicals and minerals typically found in groundwater.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"3,0,0\"\u003eIntegrated mesh surface provides a strong key for direct application of plasters and renders\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,1,0\"\u003eRequires minimal surface preparation compared to traditional tanking methods\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,2,0\"\u003eQuick and easy to install, significantly reducing project timelines\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,3,0\"\u003eCapable of delivering a Grade 3 dry environment in accordance with BS 8102:2022\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,4,0\"\u003eBacked by a BBA Agrément Certificate and a 30-year guarantee against deterioration\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"5,0,0\"\u003e2.0m wide x 20m long (40m² per roll)\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,2,0\"\u003eColour in White\/Translucent\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,3,0\"\u003eStud height is 7mm (often referred to as an 8mm membrane)\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,4,0\"\u003eLife expectancy is designed to last the lifetime of the structure\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,5,0\"\u003eSuitable for use on concrete, brick, concrete block, and ICF (with special fixings)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Newton Waterproofing","offers":[{"title":"Default Title","offer_id":57286957367628,"sku":"BM06196","price":207.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/newton-waterproofing-newton-cdm-508-mesh-membrane-1232467103.jpg?v=1776262852"},{"product_id":"newton-cdm-508-eco-floor-membrane","title":"Newton CDM 508 Eco Floor Membrane","description":"\u003cdiv class=\"container\"\u003e\n\u003cdiv dir=\"ltr\" aria-busy=\"false\" aria-live=\"polite\" id=\"model-response-message-contentr_935ab606bcd817b7\" class=\"markdown markdown-main-panel stronger enable-updated-hr-color\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eNewton CDM 508 Eco Floor Membrane is a high-performance, 8mm recycled cavity drain membrane specifically designed for floor applications within the Newton CDM System. Manufactured from 100% recycled HDPE, it features a higher density of studs per square metre than standard membranes, providing superior compressive resistance. This design ensures that the membrane can support significant floor loads while maintaining a continuous drainage void. In addition to its waterproofing capabilities, it is independently certified as an effective barrier against radon ground gases, making it a versatile choice for sustainable and safe structural protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"3,0,0\"\u003eEnhanced compressive strength specifically engineered for high-load floor installations\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,1,0\"\u003eSustainable construction choice made from 100% recycled materials\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,2,0\"\u003eDual-action protection acts as both a waterproofing membrane and a radon gas barrier\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,3,0\"\u003eHigh chemical resistance against alkalines, hydrocarbons, and aggressive groundwater\u003c\/li\u003e\n\u003cli data-path-to-node=\"3,4,0\"\u003eBBA certified and backed by a 30-year guarantee against deterioration\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"5,0,0\"\u003e2.5m wide x 20m long (50m² per roll)\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,2,0\"\u003eBlack in colour\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,3,0\"\u003eStud Height is 8mm\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,4,0\"\u003eIndependently tested and certified for radon and hydrocarbon gas protection\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,5,0\"\u003eIdeal for use over concrete rafts, slabs, or Newton Fibran XPS insulation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Newton Waterproofing","offers":[{"title":"Default Title","offer_id":57287314768204,"sku":"BM06403","price":222.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/newton-waterproofing-newton-cdm-508-eco-floor-membrane-1232467102.jpg?v=1776262831"},{"product_id":"visqueen-gr-self-adhesive-membrane-1m-x-20m","title":"Visqueen Gas Resistant Self Adhesive Membrane","description":"\u003cp\u003eVisqueen Gas Resistant Self Adhesive Membrane is a foil lined modified bitumen rubber membrane with a self-adhesive coating protected by a removable polyethylene release film. The upper surface is silver and the membrane is supplied in rolls of 1m x 20m.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType A waterproofing to BS 8102:2022\u003c\/li\u003e\n\u003cli\u003eMethane and CO2 protection to BS 8485:2015+A1:2019\u003c\/li\u003e\n\u003cli\u003eAlso provides radon and DPM protection\u003c\/li\u003e\n\u003cli\u003eBBA Agrement certified\u003c\/li\u003e\n\u003cli\u003eA multi-functional solution for sites where both waterproofing and gas protection are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSilver upper surface\u003c\/li\u003e\n\u003cli\u003eSelf adhesive - no need for jointing tape\u003c\/li\u003e\n\u003cli\u003eEPD available\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Visqueen","offers":[{"title":"Default Title","offer_id":57301787017548,"sku":"BM008772","price":332.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/visqueen-visqueen-gas-resistant-self-adhesive-membrane-1233883891.jpg?v=1776865693"},{"product_id":"visqueen-ultimate-geoseal-2-44m-x-20-5m-x-1mm","title":"Visqueen Ultimate Geoseal","description":"\u003cp\u003eVisqueen Ultimate GeoSeal is a robust 1mm thick pre-applied waterproofing barrier membrane for below-ground reinforced concrete structures. The membrane is grey on the upper surface, with a textured finish to aid adhesion to cast in-situ concrete, and black on the reverse. Supplied in single wound rolls measuring 2.44m x 20.5m.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType A waterproofing to BS 8102:2022, resistant to groundwater\u003c\/li\u003e\n\u003cli\u003eMethane and CO2 protection to BS 8485:2015+A1:2019\u003c\/li\u003e\n\u003cli\u003eVOC protection to CIRIA C748:2014\u003c\/li\u003e\n\u003cli\u003eAlso provides radon and DPM protection\u003c\/li\u003e\n\u003cli\u003eNHBC NF94 compliant\u003c\/li\u003e\n\u003cli\u003eBBA Agrement certified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood to know \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTextured grey upper surface aids adhesion to cast concrete\u003c\/li\u003e\n\u003cli\u003eLap joints can be taped or heat welded\u003c\/li\u003e\n\u003cli\u003eSupplied as single wound rolls 2.44m x 20.5m\u003c\/li\u003e\n\u003cli\u003e1mm thick\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Visqueen","offers":[{"title":"Default Title","offer_id":57301787214156,"sku":"BM008763","price":1261.65,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/files\/visqueen-visqueen-ultimate-geoseal-1233883896.jpg?v=1776865646"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/6715\/2716\/collections\/uk-SikaProof-A-plus-Roll-01496377_1-1_834fd4b9-99a0-41a7-8d4b-bcf9c656e64c.webp?v=1776159551","url":"https:\/\/www.constructionsuppliesuk.co.uk\/collections\/waterproofing-membranes.oembed","provider":"Construction Supplies UK","version":"1.0","type":"link"}