{"title":"Wall Membranes","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eWall membranes help protect building structures from moisture, wind and weather exposure while supporting the management of water vapour within the wall construction. Choosing the right membrane depends on the wall type, cladding system and required levels of breathability, airtightness and fire performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur range includes wall membranes from Novia, Tyvek, Kingspan, suitable for different wall constructions and applications. Options include wall breather membranes that help protect external walls from moisture while allowing water vapour to escape, building wraps for timber frame and other compatible wall systems, and rainscreen and façade membranes for use behind external cladding, including options for open-jointed façades.\u003c\/p\u003e\n\u003cp\u003eWe also offer fire-rated wall membranes for projects with specific fire-performance requirements, subject to the specification and requirements of the complete wall system.\u003c\/p\u003e","products":[{"product_id":"novia-black-ultra-roof-wall-breather","title":"Novia Black \u0026 Ultra 102GSM Roof \u0026 Wall Breather - 1.5m x 50m","description":"\u003cp\u003eNovia® Black+ Ultra Roof and Wall Breather Membrane is a lightweight, versatile option suitable for both \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/pitched-roof-insulation\" title=\"pitched roof insulation\"\u003epitched\u003c\/a\u003e cold and warm roofs, as well as insulated \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/wall-insulation\" title=\"wall insulation\"\u003ewall \u003c\/a\u003eapplications. It meets the EN 13859-1 standard for pitched roofs and EN 13859-2 for walls, providing excellent water resistance while maintaining high breathability. It also complies with fire classification grade E under EN 13501-1. The membrane is black on one side, grey on the other, and features a 150mm overlap line with no additional text or images.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"Default Title","offer_id":48970209034587,"sku":"48970209034587","price":49.85,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/Black_Ultimate2.jpg?v=1725615415"},{"product_id":"tyvek-uv-facade","title":"Tyvek UV Facade Membrane - 1.5m x 50m","description":"\u003cp\u003eDuPont™ Tyvek® UV Facade is an advanced, lightweight protective membrane designed for this purpose. It offers exceptional moisture control, high vapour permeability, and durability, making it an ideal choice for protecting rainscreen cladding. Tyvek® UV Facade is water-resistant, vapour-permeable, and windtight, ensuring long-term performance. It also comes with a 10-year warranty from DuPont for joint widths up to 3 cm.\u003c\/p\u003e","brand":"Tyvek","offers":[{"title":"Default Title","offer_id":48971451957595,"sku":"48971451957595","price":314.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/tyvek-uv-facade.jpg?v=1725628862"},{"product_id":"tyvek-housewrap-breather-membrane-1-4m-x-100","title":"Tyvek HouseWrap Breather Membrane - 1.4m x 100m","description":"\u003cp\u003eDuPont™ Tyvek® Housewrap is a high-performance breathable membrane ideal for timber frame wall systems and can also be used with steel frame and concrete wall constructions. It is surface-applied directly to sheathing ply\/OSB, insulation, or blockwork, offering long-term protection from the elements. Made from high-density polyethylene fibres, this durable and lightweight membrane is both windtight and water-resistant. Tyvek® Housewrap is suitable for new builds, refurbishments, or extensions, providing effective protection against moisture while allowing the structure to breathe.\u003c\/p\u003e","brand":"Tyvek","offers":[{"title":"Default Title","offer_id":49004468797787,"sku":"49004468797787","price":123.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/dupont-tyvek-housewrap--100m-x-1-4m-roll_c9cfd3bf-ac97-4bac-ad0b-82a44eeff2b4.jpg?v=1726134572"},{"product_id":"novia-reflex-roof-and-wall-breather-1-5m-x-50m","title":"Novia Reflex Roof and Wall Breather - 1.5m x 50m","description":"\u003cp\u003eNovia® Reflex Roof and Wall Breather is a high-quality, durable, and versatile reflective breather membrane designed for use in both \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/pitched-roof-insulation\" title=\"pitched roof insulation\"\u003epitched\u003c\/a\u003e cold and warm roofs, as well as insulated \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/wall-insulation\" title=\"wall insulation\"\u003ewall\u003c\/a\u003e applications.\u003c\/p\u003e\n\u003cp\u003eWith an aged reflectivity of 81%, Novia® Reflex helps improve the U-value of a structure. When installed correctly, it can add an additional R-value of up to 0.45 m²K\/W in an unventilated wall cavity or 0.17 m²K\/W in an insulated sloping roof. Its reflective surface also helps keep buildings cooler in the summer and warmer in the winter.\u003c\/p\u003e\n\u003cp\u003eThe membrane offers tensile and nail tear strength, improving its durability during handling and installation, and minimising the risk of damage. Novia® Reflex has a reflective surface on one side and a plain white reverse side, featuring only a 150mm overlap line.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"Default Title","offer_id":49023718850907,"sku":"49023718850907","price":130.09,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/Reflexroofandwallbreather.jpg?v=1726481040"},{"product_id":"novia-black-2-7m-construction-wrap-wall-breather","title":"Novia Black+ 2.7m Construction Wrap Wall Breather - 2.7m x 100mm","description":"\u003cp\u003eNovia® Black+ Construction Wrap Breather Membrane is a lightweight, versatile membrane designed for use in insulated wall applications, measuring 2.7m x 100m. It complies with EN 13859-1 for\u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/pitched-roof-insulation\" title=\"pitched roof insulation\"\u003e pitched roofing\u003c\/a\u003e and EN 13859-2 for \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/wall-insulation\" title=\"wall insulation\"\u003ewalls\u003c\/a\u003e, although it is not recommended for roofing due to its roll size. The membrane offers efficient water resistance while maintaining high breathability and meets EN 13501-1 fire classification grade E. It features a black surface on one side and grey on the reverse, with a 150mm overlap line but no additional text or markings.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"Default Title","offer_id":49023765348699,"sku":"49023765348699","price":197.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/constructionwrap.jpg?v=1726481174"},{"product_id":"novia-2-7m-building-wrap-wall-breather","title":"Novia 2.7m Building Wrap Wall Breather - 2.7m x 100m","description":"\u003cp\u003eNovia® Building Wrap Breather Membrane is a 2.7m x 100m wall breather membrane designed for use in insulated \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/wall-insulation\" title=\"wall insulation\"\u003ewall\u003c\/a\u003e applications. This lightweight membrane is classified as W2 for water resistance and complies with EN 13859-2 for walls, offering high air and vapour breathability. It meets EN 13501-1 fire classification grade E. The membrane is fully black on both sides, featuring only a 150mm overlap line. Other colours are available, subject to minimum order quantities and extended lead times.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"Default Title","offer_id":49025030455643,"sku":"49025030455643","price":150.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/buildingwrap.jpg?v=1726483667"},{"product_id":"novia-black-supreme-125gsm-roof-and-wall-breather","title":"Novia Black+ Supreme 125gsm Roof and Wall Breather - All Sizes","description":"\u003cp\u003eNovia® Black+ Supreme Roof and Wall Breather Membrane is a durable and versatile membrane suitable for both \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/pitched-roof-insulation\" title=\"pitched roof insulation\"\u003epitched\u003c\/a\u003e roofs and insulated \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/wall-insulation\" title=\"wall insulation\"\u003ewall\u003c\/a\u003e applications. It meets the standards of EN 13859-1 for pitched roofing and EN 13859-2 for walls. The membrane offers excellent water resistance while maintaining high breathability. It is also classified as Fire Rating Class E under EN 13501-1. The membrane features a black side and a grey reverse, with a 150mm overlap line and no additional text or images.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"1m x 50m = 1 roll","offer_id":49025519944027,"sku":"49025519944027","price":41.57,"currency_code":"GBP","in_stock":true},{"title":"1.5m x 50m = 1 roll","offer_id":49025519976795,"sku":"49025519976795","price":58.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/supreme.jpg?v=1726485334"},{"product_id":"novia-black-pro-150gsm-roof-and-wall-breather","title":"Novia Black+ Pro 150GSM Roof and Wall Breather - All Sizes","description":"\u003cp\u003eNovia® Black+ Pro Roof and Wall Breather Membrane is a premium quality, heavy weight, strong and versatile breather membrane for all \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/pitched-roof-insulation\" title=\"pitched roof insulation\"\u003epitched \u003c\/a\u003ecold and warm roofs, as well as insulated \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/wall-insulation\" title=\"wall insulation\"\u003ewall\u003c\/a\u003e applications. The material meets EN 13859-1 for pitched roofing and EN 13859-2 for walls. Novia® Black+ Pro has excellent water resistance but still provides high breathability. It also complies with EN 13501-1 Fire Classification E. The product is completely black on one side, grey on the reverse, with no text or images, except for a 150mm overlap line.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"1m x 50m = 1 roll","offer_id":49025635877211,"sku":"49025635877211","price":47.02,"currency_code":"GBP","in_stock":true},{"title":"1.5m x 50m = 1 roll","offer_id":49025635942747,"sku":"49025635942747","price":73.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/constructionwrap_9b67aca4-2847-47de-8500-33b12ba2b17e.jpg?v=1726494212"},{"product_id":"novia-mirrorwrap-w1-reflective-wall-breather","title":"Novia MirrorWrap W1 Reflective Wall Breather - 2.7m x 100mm","description":"\u003cp\u003eNovia® MirrorWrap W1 is a premium 4-layer laminate wall breather membrane designed for insulated \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/wall-insulation\" title=\"wall insulation\"\u003ewall\u003c\/a\u003e applications. It offers Class W1 water resistance and reflective properties. The product is CE certified and complies with EN 13859-2 for wall use, ensuring excellent water resistance (EN 1928 Class W1) while maintaining high breathability.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"Default Title","offer_id":49026759852379,"sku":"49026759852379","price":404.12,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/mirrorwrap.jpg?v=1726494437"},{"product_id":"kingspan-nilvent-breather-membrane-50m-x-1-5m","title":"Kingspan Nilvent Breather Membrane - 50m x 1.5m","description":"\u003cp\u003eNilvent is a breathable membrane designed for use in unventilated \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/pitched-roof-insulation\" title=\"pitched roof insulation\"\u003epitched roof \u003c\/a\u003eand timber frame wall applications. It is fully waterproof, airtight under normal building pressures, and non-tenting, making it a reliable solution for protecting building envelopes while allowing moisture vapour to escape.\u003c\/p\u003e","brand":"Kingspan","offers":[{"title":"Default Title","offer_id":51034531365211,"sku":"51034531365211","price":130.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/nilvent.png?v=1753356056"},{"product_id":"novia®-black-essential-roof-and-wall-breather-membrane-1-5m-x-50m","title":"Novia® Black+ Essential Roof and Wall Breather Membrane - 1.5m x 50m","description":"\u003cp\u003eNovia® Black+ Essential Roof and Wall Breather Membrane is a lightweight, cost-effective breather membrane designed for general use in insulated wall constructions. It is fully compliant with EN 13859-2 for wall applications and also meets EN 13859-1 for \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/pitched-roof-insulation\" title=\"pitched roof insulation\"\u003epitched roofing\u003c\/a\u003e, making it suitable for a broad range of standard building projects.\u003c\/p\u003e\n\u003cp\u003eThe membrane provides W1-level water resistance while maintaining high breathability, helping to manage moisture effectively within the building envelope. It also achieves EN 13501-1 Class E fire performance.\u003c\/p\u003e\n\u003cp\u003eNovia® Black+ Essential is supplied black on one side and grey on the reverse, with a clean, unprinted finish.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"Default Title","offer_id":51805931700571,"sku":"51805931700571","price":39.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/NoviaEssentialBreather-use.png?v=1764160676"},{"product_id":"novia-black-construction-wrap-light-2-7m-x-100m","title":"Novia® Black+ Construction Wrap Light Breather Membrane - 2.7m x 100m","description":"\u003cp\u003eNovia® Black+ Construction Wrap Light Breather Membrane is a lightweight, three-layer wall breather membrane supplied in 2.7m x 100m rolls. It is designed for use in all insulated \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/wall-insulation\" title=\"wall insulation\"\u003ewall\u003c\/a\u003e applications, offering a balance of durability, breathability and ease of installation.\u003c\/p\u003e\n\u003cp\u003eThe membrane delivers Class W1 water resistance while maintaining high vapour permeability to help manage moisture within the building envelope. It is manufactured to meet EN 13859-2 for wall applications and also conforms to EN 13859-1 for \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/pitched-roof-insulation\" title=\"pitched roof insulation\"\u003epitched roofing\u003c\/a\u003e, although the large roll width means it is intended primarily for wall use. The product also achieves EN 13501-1 Class E fire classification.\u003c\/p\u003e\n\u003cp\u003eNovia® Black+ Construction Wrap Light is supplied black on one side and grey on the reverse, presented in a clean, unprinted finish.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"Default Title","offer_id":51835199848795,"sku":"51835199848795","price":172.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/NoviaBlack_ConstructionWrapLight-use.png?v=1764679812"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/collections\/tyvek-uv-facade_e775818b-67e3-42a9-aa83-6d420bc2fd5d.jpg?v=1793635790","url":"https:\/\/www.nationalinsulationsupplies.com\/collections\/wall-membranes.oembed","provider":"National Insulation Supplies","version":"1.0","type":"link"}