{"title":"Novia Breather Membranes","description":"\u003cp data-start=\"354\" data-end=\"837\"\u003eThe \u003ca href=\"https:\/\/www.nationalinsulationsupplies.com\/collections\/novia\" title=\"Novia\"\u003eNovia\u003c\/a\u003e Breather Membranes collection comprises weather-resistant, breathable membranes designed to protect insulated building structures from external moisture while allowing internal water vapour to escape. Installed on the cold side of insulation beneath cladding, tiles, or external facings, breather membranes prevent wind-driven rain and external contaminants from entering the building fabric while maintaining high vapour permeability. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"839\" data-end=\"1220\"\u003eNovia breather membranes are suitable for use in both \u003cstrong data-start=\"893\" data-end=\"923\"\u003eroof and wall applications\u003c\/strong\u003e, with products that meet UKCA and CE marking requirements and comply with relevant standards such as EN 13859-1 and EN 13859-2 for pitched roofs and walls. Some variants also offer fire classification and enhanced performance for specific construction needs. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1222\" data-end=\"1616\"\u003eTypical applications include pitched cold and warm roof structures as well as insulated wall build-ups, where effective vapour management and weather resistance are required. These membranes are lightweight, durable, and engineered to support long-term moisture management when installed correctly and paired with appropriate tapes and sealing accessories. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1618\" data-end=\"1898\"\u003eProducts in this collection may include high-specification roof and wall breather membranes, reflective breather variants that can improve thermal performance, and fire-rated breather membranes for use in compliance with building regulations.\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":51.45,"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":"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":205.8,"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-class-b-s1-d0-fr-breather-membrane","title":"Novia Class B-s1,d0 FR Breather Membrane - 1.5m x 50m","description":"\u003cp\u003eNovia® FR Roof and Wall Breather Membrane is a Class B-s1,d0* fire-rated, lightweight breather membrane designed for use in \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 is CE marked and complies with EN 13859-1 for pitched roofing and EN 13859-2 for walls, including high-rise buildings. The membrane offers Class W1 water resistance while maintaining high breathability. Made from 2-layer TPU, it also provides enhanced UV resistance. The Novia® FR Breather is black on one side, white on the reverse, and features a 150mm overlap line, with no additional text or images.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"Default Title","offer_id":49024820609371,"sku":"49024820609371","price":199.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/FRroofandbreathermembrane.jpg?v=1726480067"},{"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":43.57,"currency_code":"GBP","in_stock":true},{"title":"1.5m x 50m = 1 roll","offer_id":49025519976795,"sku":"49025519976795","price":61.95,"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":53.02,"currency_code":"GBP","in_stock":true},{"title":"1.5m x 50m = 1 roll","offer_id":49025635942747,"sku":"49025635942747","price":77.17,"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-class-b-s1-d0-uv-facade-fr-breather-membrane","title":"Novia Class B-s1,d0 UV Facade FR Breather Membrane - 1.5m x 50m","description":"\u003cp\u003eNovia® FR Roof and Wall Breather Membrane is a high-performance, lightweight, and versatile breather membrane with a Class B-s1,d0* fire rating. It is suitable for all \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. CE marked, it complies with EN 13859-1 for pitched roofing and EN 13859-2 for walls, including high-rise buildings. The membrane features excellent Class W1 water resistance and high breathability. Constructed from a 2-layer TPU, it offers enhanced UV resistance. The membrane is black on one side and white on the reverse, with no text or images apart from a 150mm overlap line.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"Default Title","offer_id":49026338324827,"sku":"49026338324827","price":176.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/constructionwrap_7d3bfffb-f82e-4828-93d4-a6767860a28b.jpg?v=1726494316"},{"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":"novia-breather-membrane-lap-tape","title":"Novia Breather Membrane Lap Tape - All Sizes","description":"\u003cp\u003eNovia® Breather Membrane Lap Tape (BMLT) is a sealing and bonding tape featuring a high-strength acrylic dispersion adhesive with a non-woven polypropylene backing. It can be applied in temperatures as low as -10°C with appropriate care. Designed for use in both roof and wall applications, this tape is ideal for securing overlaps and joints on breather membranes. By sealing these overlaps, it helps to protect against external environmental conditions and enhances airtightness.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"50mm x 25m = 1 roll","offer_id":49031150829915,"sku":"49031150829915","price":19.0,"currency_code":"GBP","in_stock":true},{"title":"75mm x 25m = 1 roll","offer_id":49031150895451,"sku":"49031150895451","price":23.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/breatherlaptape.jpg?v=1726565091"},{"product_id":"novia-double-sided-lap-tape","title":"Novia Double Sided Lap Tape - 50mm x 25m","description":"\u003cp\u003eNovia® Double Sided Lap Tape (DSLT) is a double-sided sealing and bonding tape that offers excellent adhesion due to its specialised adhesive system. It features a polyester scrim carrier with an acrylic dispersion adhesive, backed by a silicone-coated brown release paper. Novia® DSLT is suitable for installation in temperatures as low as -10°C (with care), though an optimal temperature of +5°C is recommended for best results. This tape is ideal for sealing overlaps and joints on breather membranes in both roof and wall applications, providing protection against external environmental conditions and enhancing airtightness.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"Default Title","offer_id":49032875966811,"sku":"49032875966811","price":12.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/NoviaDoubleSidedLapTapeRollLogoLR.jpg?v=1726582127"},{"product_id":"novia-ultraviolet-lap-tape","title":"Novia Ultraviolet Lap Tape - 75mm x 25m","description":"\u003cp\u003eNovia® Ultraviolet Lap Tape (UVLT) is a sealing and bonding tape featuring a high-strength acrylic dispersion adhesive, with an elastic LDPE-film carrier reinforced by scrim. It is particularly suited for open façade UV breather membrane applications in walls, offering excellent UV resistance. Novia® UVLT provides 24 months** of UV stability in open rainscreen applications with joint widths up to 30mm, where no more than 40% of the membrane’s total area is exposed. It is also suitable for sealing overlaps and joints in breather membranes for standard roof applications where added UV protection is beneficial. Novia® UVLT helps secure membrane overlaps, providing protection from external environmental conditions and improving airtightness.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"Default Title","offer_id":49033256665435,"sku":"49033256665435","price":24.04,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/ultraviolettape.jpg?v=1726582299"},{"product_id":"novia-reflective-membrane-lap-tape-60mm-x-50m","title":"Novia Reflective Membrane Lap Tape - 60mm x 50m","description":"\u003cp\u003eNovia® Reflective Membrane Lap Tape (RMLT) is a metallised polyester jointing tape designed for sealing edge and lap joints in Novia® MirrorWrap W1 reflective breather membrane installations. Coated with a high-performance cold-weather solvent acrylic adhesive, it is self-wound and does not require a release liner. As a low emissivity tape, Novia® RMLT should be used alongside Novia® Double Sided Lap Tape (DSLT) to achieve a high-specification, fully reflective finish.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"Default Title","offer_id":50789769609563,"sku":"50789769609563","price":11.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/RMLT.jpg?v=1749815132"},{"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":41.6,"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":177.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/NoviaBlack_ConstructionWrapLight-use.png?v=1764679812"},{"product_id":"novia-black-fc125-breather-membrane-floor-cassette-breather-membrane-50m-x-1m-50m","title":"Novia Black+ FC125 Breather Membrane Floor Cassette Breather Membrane - 50m x 1m (50m²)","description":"\u003cp data-start=\"265\" data-end=\"540\"\u003eNovia® Black+ FC125 is a 3-layer floor cassette membrane designed for use in timber frame wall constructions. It is installed around the floor cassette at junctions and connected to the internal Air \u0026amp; Vapour Control Layer (AVCL) to maintain airtightness at floor connections.\u003c\/p\u003e\n\u003cp data-start=\"542\" data-end=\"838\"\u003eThe membrane incorporates a microporous core and provides Class W1 resistance to water penetration in accordance with EN 1928. It is airtight while remaining vapour permeable, with an Sd value of 0.029m (EN ISO 12572), allowing moisture vapour to pass through while limiting unwanted air leakage.\u003c\/p\u003e\n\u003cp data-start=\"840\" data-end=\"1086\"\u003eNovia® Black+ FC125 is used to reduce the risk of interstitial condensation at wall panel and floor junction details. The membrane is black on one side and grey on the reverse, with no printed text or images other than a 150mm overlap guide line.\u003c\/p\u003e\n\u003cp data-start=\"1088\" data-end=\"1144\"\u003eThe product is UKCA marked to EN 13859-1 and EN 13859-2.\u003c\/p\u003e","brand":"Novia","offers":[{"title":"Default Title","offer_id":52341823603035,"sku":"52341823603035","price":44.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/files\/Black_FC125.jpg?v=1770826774"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7763\/0299\/collections\/NoviaEssentialBreather-use.png?v=1771607377","url":"https:\/\/www.nationalinsulationsupplies.com\/collections\/novia-breather-membranes.oembed","provider":"National Insulation Supplies","version":"1.0","type":"link"}