{"title":"Envirograf","description":"","products":[{"product_id":"envirograf-flexible-strip-cavity-barrier-2m-x-30mm-x-6mm","title":"ENVIROGRAF CV30\/6 Flexible Strip Cavity Barrier - 2m x 30mm x 6mm (50-60mm Gap)","description":"\u003cp\u003e\u003cstrong\u003eENVIROGRAF Flexible Strip Cavity Barrier \u003c\/strong\u003eis a flexible, PVC and foil-clad intumescent strip with self-adhesive backing to adhere to walls. Designed especially for timber frame buildings. High expansion intumescent locks against the external side of the internal wall in a fire without affecting the outer wall. Blue plastic sleeve robust enough to prevent damage by water or pests. 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Under heat the intumescent creates a fire seal, thus providing full fire protection.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eProtects 30 - 45mm Cavity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eProvides a minimum of 2 hours protection\u003c\/p\u003e\n\u003cp\u003eStrip barriers are ideal for modular buildings where space is limited, due to their small profile\u003c\/p\u003e\n\u003cp\u003eEasy to install with adhesive strip, but can be fixed down with screws or nails to provide additional fixing\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThickness: \u003c\/strong\u003e4mm\u003cbr\u003e\u003cstrong\u003eWidth:\u003c\/strong\u003e\u003cspan\u003e 30mm\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eLength:\u003c\/strong\u003e\u003cspan\u003e 2 Linear Metres\u003cbr\u003e\u003cstrong\u003eGap Size: \u003c\/strong\u003e30\/45mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCertification:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStrip barrier tested to BS476 parts 20, 22 and BS EN 1363-1 (1999), giving fire protection from 60 to 120 minutes.\u003c\/p\u003e","brand":"Envirograf","offers":[{"title":"Default Title","offer_id":41751739302046,"sku":"ENV\/CV30-24","price":19.61,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0024\/1270\/7886\/files\/ENVIROGRAF_CV30_4_Flexible_Strip_Cavity_Barrier_-_2m_x_30mm_x_4mm_30-45mm_Gap_Insulation_Merchant.png?v=1737640880"},{"product_id":"envirograf-cv30-8-flexible-strip-cavity-barrier-2m-x-30mm-x-8mm","title":"ENVIROGRAF CV30\/8 v Flexible Strip Cavity Barrier (with brackets) - 2m x 30mm x 8mm (60-70mm Gap)","description":"\u003cp\u003e\u003cstrong\u003eENVIROGRAF Flexible Strip Cavity Barrier \u003c\/strong\u003eis a flexible, PVC and foil-clad intumescent strip with self-adhesive backing to adhere to walls. Designed especially for timber frame buildings. High expansion intumescent locks against the external side of the internal wall in a fire without affecting the outer wall. Blue plastic sleeve robust enough to prevent damage by water or pests. Under heat the intumescent creates a fire seal, thus providing full fire protection.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eProtects 60 - 70mm Cavity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eProvides a minimum of 2 hours protection\u003c\/p\u003e\n\u003cp\u003eStrip barriers are ideal for modular buildings where space is limited, due to their small profile\u003c\/p\u003e\n\u003cp\u003eEasy to install with adhesive strip, but can be fixed down with screws or nails to provide additional fixing\u003c\/p\u003e\n\u003cp\u003eSupplied with fixing brackets\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThickness: \u003c\/strong\u003e8mm\u003cbr\u003e\u003cstrong\u003eWidth:\u003c\/strong\u003e\u003cspan\u003e 30mm\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eLength:\u003c\/strong\u003e\u003cspan\u003e 2 Linear Metres\u003cbr\u003e\u003cstrong\u003eGap Size: \u003c\/strong\u003e60\/70mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCertification:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStrip barrier tested to BS476 parts 20, 22 and BS EN 1363-1 (1999), giving fire protection from 60 to 120 minutes.\u003c\/p\u003e","brand":"Envirograf","offers":[{"title":"Default Title","offer_id":41751825580190,"sku":"ENV\/CV30-28V","price":30.57,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0024\/1270\/7886\/files\/ENVIROGRAF_CV30_8_v_Flexible_Strip_Cavity_Barrier_with_brackets_-_2m_x_30mm_x_8mm_60-70mm_Gap_Insulation_Merchant.png?v=1737641028"},{"product_id":"envirograf-cv30-10-v-flexible-strip-cavity-barrier-with-brackets-2m-x-30mm-x-10mm","title":"ENVIROGRAF CV30\/10 Flexible Strip Cavity Barrier (with brackets) - 2m x 30mm x 10mm (80\/90mm Gap)","description":"\u003cp\u003e\u003cstrong\u003eENVIROGRAF Flexible Strip Cavity Barrier \u003c\/strong\u003eis a flexible, PVC and foil-clad intumescent strip with self-adhesive backing to adhere to walls. Designed especially for timber frame buildings. High expansion intumescent locks against the external side of the internal wall in a fire without affecting the outer wall. Blue plastic sleeve robust enough to prevent damage by water or pests. Under heat the intumescent creates a fire seal, thus providing full fire protection.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eProtects 80 - 90mm Cavity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eProvides a minimum of 2 hours protection\u003c\/p\u003e\n\u003cp\u003eStrip barriers are ideal for modular buildings where space is limited, due to their small profile\u003c\/p\u003e\n\u003cp\u003eEasy to install with adhesive strip, but can be fixed down with screws or nails to provide additional fixing\u003c\/p\u003e\n\u003cp\u003eSupplied with fixing brackets\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThickness: \u003c\/strong\u003e10mm\u003cbr\u003e\u003cstrong\u003eWidth:\u003c\/strong\u003e\u003cspan\u003e 30mm\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eLength:\u003c\/strong\u003e\u003cspan\u003e 2 Linear Metres\u003cbr\u003e\u003cstrong\u003eGap Size: \u003c\/strong\u003e80\/90mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCertification:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStrip barrier tested to BS476 parts 20, 22 and BS EN 1363-1 (1999), giving fire protection from 60 to 120 minutes.\u003c\/p\u003e","brand":"Envirograf","offers":[{"title":"Default Title","offer_id":41751837606046,"sku":"ENV\/CV30-210V","price":40.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0024\/1270\/7886\/files\/ENVIROGRAF_CV30_10_Flexible_Strip_Cavity_Barrier_with_brackets_-_2m_x_30mm_x_10mm_80_90mm_Gap_Insulation_Merchant.png?v=1737640627"},{"product_id":"envirograf-cv30-12-v-flexible-strip-cavity-barrier-with-brackets-2m-x-30mm-x-12mm","title":"ENVIROGRAF CV30\/12 v Flexible Strip Cavity Barrier (with brackets) - 2m x 30mm x 12mm (95-105mm Gap)","description":"\u003cp\u003e\u003cstrong\u003eENVIROGRAF Flexible Strip Cavity Barrier \u003c\/strong\u003eis a flexible, PVC and foil-clad intumescent strip with self-adhesive backing to adhere to walls. 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Designed especially for timber frame buildings. High expansion intumescent locks against the external side of the internal wall in a fire without affecting the outer wall. Blue plastic sleeve robust enough to prevent damage by water or pests. Under heat the intumescent creates a fire seal, thus providing full fire protection.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eProtects 100 - 120mm Cavity\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eProvides a minimum of 2 hours protection\u003c\/p\u003e\n\u003cp\u003eStrip barriers are ideal for modular buildings where space is limited, due to their small profile\u003c\/p\u003e\n\u003cp\u003eEasy to install with adhesive strip, but can be fixed down with screws or nails to provide additional fixing\u003c\/p\u003e\n\u003cp\u003eSupplied with fixing brackets\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThickness: \u003c\/strong\u003e12mm\u003cbr\u003e\u003cstrong\u003eWidth:\u003c\/strong\u003e\u003cspan\u003e 30mm\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eLength:\u003c\/strong\u003e\u003cspan\u003e 2 Linear Metres\u003cbr\u003e\u003cstrong\u003eGap Size: \u003c\/strong\u003e100\/120mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCertification:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStrip barrier tested to BS476 parts 20, 22 and BS EN 1363-1 (1999), giving fire protection from 60 to 120 minutes.\u003c\/p\u003e","brand":"Envirograf","offers":[{"title":"Default Title","offer_id":41751863066782,"sku":"ENV\/CV30-215V","price":47.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0024\/1270\/7886\/files\/ENVIROGRAF_CV30_15_Flexible_Strip_Cavity_Barrier_with_brackets_-_2m_x_30mm_x_15mm_100-120mm_Gap_Insulation_Merchant.png?v=1737640775"},{"product_id":"envirograf-ffcb-rainscreen-fast-fix-cavity-barrier-1220mm-x-130mm-x-60mm-170mm-cavity","title":"ENVIROGRAF FFCB Rainscreen Fast Fix Cavity Barrier - 1220mm x 130mm x 60mm (170mm cavity)","description":"\u003cp\u003eRainscreen fast fix ventilated cavity barrier, an effective solution for ventilated rainscreen cavities. Suitable for both horizontal and vertical application. Supplied in 1220mm lengths with 4 fixing brackets per length. In addition, achieves 2 hours of fire protection for cavities from 75mm to 315mm.\u003cbr\u003e\u003cbr\u003eMechanically fix the cavity barrier to the substrate at a maximum of 500mm centres with non-combustible fixings. Ensure there are no gaps between the substrate and the barrier when attached to the wall.\u003cbr\u003e\u003cbr\u003eCavity Barriers are pieces of fire-stopping material. They fit within the cavity of a building on each floor horizontally and the party wall in a vertical position. The material provides compartmentation. Both the flames and heat cannot be transferred to other compartmental areas. Throughout the life of the building, the Cavity Barrier will remain fixed in place. In the event of a fire, the intumescent material expands and seals off the gaps. Additionally, the horizontal barriers allow for a ventilation gap within the cavity. Subsequently closing when the intumescent expands.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e– Effective solution for ventilated rain screen cavities\u003cbr\u003e– Suitable for both horizontal and vertical application\u003cbr\u003e– Maximum air gap up to 40mm\u003cbr\u003e– Very simple installation process\u003cbr\u003e– Supplied in 1220 mm lengths with 4 fixing brackets\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e- Length: 1220mm\u003cbr\u003e- Width: 130mm\u003cbr\u003e- Thickness: 60mm\u003cbr\u003e- Cavity Width: 170mm\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eApplication:\u003cbr\u003e- The barrier must be mechanically fixed to the substrate at a maximum of 500mm centres with non-combustible fixings. 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Suitable for both horizontal and vertical application. Supplied in 1220mm lengths with 4 fixing brackets per length. In addition, achieves 2 hours of fire protection for cavities from 75mm to 315mm.\u003cbr\u003e\u003cbr\u003eMechanically fix the cavity barrier to the substrate at a maximum of 500mm centres with non-combustible fixings. Ensure there are no gaps between the substrate and the barrier when attached to the wall.\u003cbr\u003e\u003cbr\u003eCavity Barriers are pieces of fire-stopping material. They fit within the cavity of a building on each floor horizontally and the party wall in a vertical position. The material provides compartmentation. Both the flames and heat cannot be transferred to other compartmental areas. Throughout the life of the building, the Cavity Barrier will remain fixed in place. In the event of a fire, the intumescent material expands and seals off the gaps. Additionally, the horizontal barriers allow for a ventilation gap within the cavity. Subsequently closing when the intumescent expands.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eEffective solution for ventilated rain screen cavities\u003c\/p\u003e\n\u003cp\u003eSuitable for both horizontal and vertical application\u003c\/p\u003e\n\u003cp\u003eMaximum air gap up to 40mm\u003c\/p\u003e\n\u003cp\u003eVery simple installation process\u003c\/p\u003e\n\u003cp\u003eSupplied in 1220 mm lengths with 4 fixing brackets\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eLength: 1220mm\u003cbr\u003eWidth: Various\u003cbr\u003eThickness: 60mm\u003cbr\u003eAirflow: 40mm\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eApplication:\u003cbr\u003e- The barrier must be mechanically fixed to the substrate at a maximum of 500mm centres with non-combustible fixings. When fixing the brackets into the barrier, ensure they are fully pushed and centred in the middle.\u003cbr data-mce-fragment=\"1\"\u003eWhen attaching to the wall, ensure there are no gaps between the substrate and the barrier.\u003c\/p\u003e\n\u003cp\u003eCertifications:\u003cbr\u003e\u003cspan data-mce-fragment=\"1\"\u003e– Fire test performance according to the BS EN 1363-1:1999, achieving 2 hours of fire protection.\u003c\/span\u003e\u003c\/p\u003e","brand":"Envirograf","offers":[{"title":"50mm (90mm cavity)","offer_id":42263783866526,"sku":"ENV\/FFCB40-50","price":17.41,"currency_code":"GBP","in_stock":true},{"title":"60mm (100mm cavity)","offer_id":42263783899294,"sku":"ENV\/FFCB40-60","price":19.63,"currency_code":"GBP","in_stock":true},{"title":"75mm (115mm cavity)","offer_id":42263783932062,"sku":"ENV\/FFCB40-75","price":21.02,"currency_code":"GBP","in_stock":true},{"title":"100mm (140mm cavity)","offer_id":42263783964830,"sku":"ENV\/FFCB40-100","price":25.6,"currency_code":"GBP","in_stock":true},{"title":"150mm (190mm cavity)","offer_id":42263783997598,"sku":"ENV\/FFCB40-150","price":31.33,"currency_code":"GBP","in_stock":true},{"title":"175mm (215mm cavity)","offer_id":42263784030366,"sku":"ENV\/FFCB40-175","price":34.54,"currency_code":"GBP","in_stock":true},{"title":"200mm (240mm cavity)","offer_id":42263784063134,"sku":"ENV\/FFCB40-200","price":38.41,"currency_code":"GBP","in_stock":true},{"title":"225mm (265mm cavity)","offer_id":42263784095902,"sku":"ENV\/FFCB40-225","price":41.83,"currency_code":"GBP","in_stock":true},{"title":"250mm (290mm cavity)","offer_id":42263784128670,"sku":"ENV\/FFCB40-250","price":45.72,"currency_code":"GBP","in_stock":true},{"title":"275mm (315mm cavity)","offer_id":42263784161438,"sku":"ENV\/FFCB40-275","price":47.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0024\/1270\/7886\/products\/ENVIROGRAF_FFCB_Rainscreen_Fast_Fix_Cavity_Barrier_-_40mm_airflow_-_ALL_SIZES_Insulation_Merchant.jpg?v=1737641294"},{"product_id":"envirograf-rsm-cavity-barrier-non-venit","title":"ENVIROGRAF RSM Cavity Barrier - ALL SIZES","description":"\u003cp\u003eFireproof rain screen cavity barrier range, specially designed to offer excellent passive fire protection for rain-screen and other types of cladding. Using fireproof sponge instead of mineral wool, this range offers many advantages:\u003cbr\u003e- The barrier is much thinner, additionally offering a better fire rating.\u003cbr\u003e- Easy to fix and no masks required.\u003cbr\u003e- Fixing brackets already in place, fix with screws, nails, or spit nails.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eMade in 1-metre lengths, with 4 fitting brackets for horizontal application or 3 brackets for vertical. Cut with a sharp knife to fit around metalwork. The cover is made from a strong, intumescent-coated material, completely water-resistant.\u003cbr\u003e\u003cbr\u003eThe RSM range is the same as the RSF, however, the RSF comes with a foiled reinforced covering which is water-resistant.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e– Barriers have a slim profile without compromising fire rating – will still protect for up to 2 hours\u003cbr\u003e– Non-fibrous, dust-free and easy to install with washers or brackets\u003cbr\u003e– The entire RS range can be fitted vertically or horizontally\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e- Length: 1m\u003cbr\u003e- Width: Various\u003cbr\u003e- Thickness: 40\/50mm\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eCertification:\u003cbr\u003e– Tested to BS EN 1363-1 (1999), achieving up to 132 minutes protection.\u003cbr data-mce-fragment=\"1\"\u003e– Tested to BS476 Part 20, achieving up to 66 minutes of protection.\u003c\/span\u003e\u003c\/p\u003e","brand":"Envirograf","offers":[{"title":"Non-Ventilated \/ 40mm \/ 100mm","offer_id":56415129796994,"sku":null,"price":18.9,"currency_code":"GBP","in_stock":true},{"title":"Non-Ventilated \/ 40mm \/ 150mm","offer_id":42264093163678,"sku":"ENV\/RSM-15040","price":24.99,"currency_code":"GBP","in_stock":true},{"title":"Non-Ventilated \/ 40mm \/ 180mm","offer_id":42264093196446,"sku":"ENV\/RSM-180","price":28.38,"currency_code":"GBP","in_stock":true},{"title":"Non-Ventilated \/ 40mm \/ 200mm","offer_id":42264093229214,"sku":"","price":30.95,"currency_code":"GBP","in_stock":true},{"title":"Non-Ventilated \/ 40mm \/ 250mm","offer_id":42264093261982,"sku":"","price":35.19,"currency_code":"GBP","in_stock":true},{"title":"Non-Ventilated \/ 40mm \/ 300mm","offer_id":42264093294750,"sku":"","price":41.86,"currency_code":"GBP","in_stock":true},{"title":"Non-Ventilated \/ 50mm \/ 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180mm","offer_id":42264094015646,"sku":"","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"With Ventilation Holes \/ 50mm \/ 200mm","offer_id":42264094048414,"sku":"","price":44.47,"currency_code":"GBP","in_stock":true},{"title":"With Ventilation Holes \/ 50mm \/ 250mm","offer_id":42264094081182,"sku":"","price":55.36,"currency_code":"GBP","in_stock":true},{"title":"With Ventilation Holes \/ 50mm \/ 300mm","offer_id":42264094113950,"sku":"","price":66.01,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0024\/1270\/7886\/products\/ENVIROGRAF_RSM_Cavity_Barrier_-_ALL_SIZES_Insulation_Merchant.jpg?v=1737641950"},{"product_id":"envirograf-flexible-sponge-rainscreen-cavity-barrier-rsf-all-sizes","title":"ENVIROGRAF Flexible Sponge Rainscreen Cavity Barrier (RSF)","description":"\u003cp\u003eFlexible sponge rain-screen moisture-resistant cavity barrier range, specially designed to offer excellent passive fire protection for rain-screen and other types of cladding. Using fireproof sponge instead of mineral wool, this range offers many advantages:\u003cbr\u003e\u003cbr\u003e- The barrier is much thinner, additionally offering a better fire rating.\u003cbr\u003e- Easy to fix and no masks required.\u003cbr\u003e- Fixing brackets already in place, fix with screws, nails, or spit nails.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eMade in 1-metre lengths, with 4 fitting brackets for horizontal application or 3 brackets for vertical. Cut with a sharp knife to fit around metalwork. The cover is made from a strong, intumescent-coated material, completely water-resistant.\u003cbr\u003e\u003cbr\u003eThe RSF range is the same as the RSM but with a foiled reinforced covering which is water-resistant.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e– Barriers have a slim profile without compromising fire rating – will still protect for up to 2 hours\u003cbr\u003e– Non-fibrous, dust-free and easy to install with washers or brackets\u003cbr\u003e– The entire RS range can be fitted vertically or horizontally\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e- Length: 1m\u003cbr\u003e- Width: Various\u003cbr data-mce-fragment=\"1\"\u003e- Thickness: 40\/50mm\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eCertifications:\u003cbr\u003e\u003cspan data-mce-fragment=\"1\"\u003e– Tested to BS EN 1363-1 (1999), achieving up to 132 minutes protection.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan 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150mm","offer_id":42265198559390,"sku":"ENV\/RSF-50150","price":19.16,"currency_code":"GBP","in_stock":true},{"title":"Non-Ventilated \/ 50mm \/ 180mm","offer_id":42265198592158,"sku":"ENV\/RSF-50180","price":20.9,"currency_code":"GBP","in_stock":true},{"title":"Non-Ventilated \/ 50mm \/ 200mm","offer_id":42265198624926,"sku":"ENV\/RSF-50200","price":22.34,"currency_code":"GBP","in_stock":true},{"title":"Non-Ventilated \/ 50mm \/ 250mm","offer_id":42265198657694,"sku":"ENV\/RSF-50250","price":36.8,"currency_code":"GBP","in_stock":true},{"title":"Non-Ventilated \/ 50mm \/ 300mm","offer_id":42265198690462,"sku":"ENV\/RSF-50300","price":30.26,"currency_code":"GBP","in_stock":true},{"title":"With Intumescent \/ 40mm \/ 150mm","offer_id":42265198723230,"sku":"ENV\/RSFI-40150","price":24.36,"currency_code":"GBP","in_stock":true},{"title":"With Intumescent \/ 40mm \/ 180mm","offer_id":42265198755998,"sku":"ENV\/RSFI-40180","price":26.05,"currency_code":"GBP","in_stock":true},{"title":"With 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300mm","offer_id":42265199378590,"sku":"ENV\/RSFA-50300","price":45.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0024\/1270\/7886\/products\/ENVIROGRAF_Flexible_Sponge_Rainscreen_Cavity_Barrier_RSF_-_ALL_SIZES_Insulation_Merchant.jpg?v=1737641655"},{"product_id":"envirograf-flexible-foiled-cavity-barrier-wb-vwb-all-sizes","title":"ENVIROGRAF Flexible Foiled Cavity Barrier (WB \u0026 VWB) - ALL SIZES","description":"\u003cp\u003eThe flexible foiled barrier for the brick cavity consists of an intumescent strip faced with high tensile foil, ensuring optimum durability and moisture protection. The powerful intumescent seal, in the event of a fire, expands to create a powerful fire and smoke seal, thus providing effective fire protection. Additionally, a flexible mesh structure offers enhanced robust strength and flexibility to the barrier section.\u003cbr\u003e\u003cbr\u003e- WB Cavity Barrier – thin flexible foil-faced intumescent strip. Fixed in a horizontal position in a brick\/ block cavity. Fixed with mortar.\u003cbr\u003e- VWB Cavity Barrier – supplied with airflow system, either one, two, or three rows of holes. Depends on the width of the barrier.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e– All barriers in the range are designed to fix the gap between the inner and outer course of brick-to-block or block-to-block walls\u003cbr\u003e– The WB foiled cavity barrier range is designed to be fitted horizontally between brick or block walls, expanding to form a complete fire and smoke barrier in a fire\u003cbr\u003e– Foiled cavity barriers are designed to allow insulation material to be installed both above and below the barrier\u003cbr\u003e– VWBG barrier is self-draining – ideal for allowing free airflow in and out of cavities where smoke sealing is required\u003cbr\u003e– The WBS flexible sponge barriers can be fitted horizontally or vertically between brick or block walls, resisting fire and smoke. The ventilated version, which must be fitted horizontally, is also fitted with an intumescent strip which expands to fill ventilation holes in a fire\u003cbr\u003e– Sponge cavity barriers provide their own thermal insulation, but also allow for insulation material to be installed above and below the barrier\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Length: 1\/2m\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Width: Various\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication:\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eBRICK AND BLOCK CAVITIES\u003c\/strong\u003e\u003cbr\u003eThe barrier is held into the horizontal position by sandwiching it between the bricks and mortar at the\u003cbr\u003ebuild stage. 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