{"product_id":"permo-forte-breathable-felt","title":"Permo Forte Breathable Felt","description":"\u003ch2\u003eKlober Permo Forte 145 Breathable Roof Membrane\u003c\/h2\u003e\n\nThe Klober Permo Forte 145 is the strongest breathable roofing membrane in Klober’s specialist range, designed to provide superior protection for pitched roofs while allowing moisture to escape. Ideal for both cold and warm roof applications, this four-layer, vapour-permeable membrane features a built-in reinforced safety grid, offering added strength and reliability during installation and throughout the roof’s life.\n\n\u003ch3\u003eAdvanced Breathable Technology\u003c\/h3\u003e\n\nPermo Forte 145 is engineered to control condensation effectively, ensuring that moisture vapour can escape while preventing water ingress. Its low resistance (LR) design conforms to BS 5250, making it a reliable solution for pitched roof ventilation and moisture management.\n\n\u003ch3\u003eDurable and High-Performance\u003c\/h3\u003e\n\nFour-layer, reinforced membrane with built-in safety grid\n\nTear-resistant, lightweight, and flexible for easy installation\n\nWater penetration resistance: W1\n\nTensile strength: 430\/370 N\/50mm (MD\/CD)\n\nNail tear strength: 320\/340 N (MD\/CD)\n\nElongation: 20\/15% (MD\/CD)\n\nFire rating: EN 13501-1: E\n\nTemperature resistance: -40°C to +80°C\n\n\u003ch3\u003ePractical Applications\u003c\/h3\u003e\n\nPermo Forte 145 can be installed in both fully supported and unsupported roof systems, making it suitable for a wide range of pitched roof projects. It is effective in all wind zones (with appropriate headlap and batten gauge) and is compatible with battened or taped headlaps, providing versatility for both new builds and refurbishments.\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\nBrand: Klober\n\nColour: Light grey\n\nWeight: 145 g\/m²\n\nWidth \u0026amp; Length: 1.5m x 50m (75 m²) or 1.1m x 55m (60.5 m²)\n\nPackaging: Pallet quantities – 20 rolls (1.5m x 50m), 24 rolls (1.1m x 55m)\n\nGuarantee: 10-year manufacturer guarantee against defects\n\n\u003ch3\u003eApprovals \u0026amp; Standards\u003c\/h3\u003e\n\nBBA approved (cold vented \/ warm non-vented \/ cold non-vented)\n\nNSAI approved\n\nCE \u0026amp; UKCA marked\n\nManufactured to BS EN 13859-1:2010\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e \u003ch4\u003e1. What makes Permo Forte 145 different from standard breathable membranes?\u003c\/h4\u003e Permo Forte 145 features a **four-layer construction with a built-in reinforced safety grid**, making it stronger, more tear-resistant, and safer to handle than standard membranes. \u003ch4\u003e2. Can this membrane be used for both cold and warm roof systems?\u003c\/h4\u003e Yes. Permo Forte 145 is suitable for **cold, warm, vented, and non-vented roof applications**, offering versatile performance for a variety of roof types. \u003ch4\u003e3. How does it help with condensation?\u003c\/h4\u003e Its **vapour-permeable design** allows moisture to escape from the roof structure while preventing water ingress, effectively reducing the risk of condensation build-up and protecting timber and tiles. \u003ch4\u003e4. Is Permo Forte 145 compliant with building standards?\u003c\/h4\u003e Yes. It is **BBA approved, NSAI approved**, CE\/UKCA marked, and manufactured to **BS EN 13859-1:2010**, ensuring compliance with UK and European roofing regulations.\u003cbr\u003e\u003cp\u003eCheck out our full range of \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/roofing-supplies\"\u003eroofing supplies\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eBrowse more \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/breathable-felts\"\u003ebreathable felts\u003c\/a\u003e available online.\u003c\/p\u003e","brand":"Klober","offers":[{"title":"Default Title","offer_id":51570094080342,"sku":"284","price":245.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/4509\/4998\/files\/permo-forte-breathable-felt-5415314.jpg?v=1772656464","url":"https:\/\/jjbuildingmaterials.co.uk\/products\/permo-forte-breathable-felt","provider":"JJ Building Materials","version":"1.0","type":"link"}