{"title":"Loft Insulation | Insulation","description":"\u003cp data-start=\"430\" data-end=\"845\"\u003eKeep your home warmer, quieter, and more energy-efficient with premium \u003cstrong data-start=\"501\" data-end=\"520\"\u003eloft insulation\u003c\/strong\u003e from \u003cstrong data-start=\"526\" data-end=\"551\"\u003eJJ Building Materials\u003c\/strong\u003e. Designed to reduce heat loss and lower energy bills, our insulation range includes high-performance rolls and boards suitable for both domestic and commercial projects. Whether you’re topping up existing insulation or insulating a new build, our materials deliver lasting comfort and value.\u003c\/p\u003e\n\u003ch3 data-start=\"847\" data-end=\"898\"\u003eRoof Insulation for Better Energy Performance\u003c\/h3\u003e\n\u003cp data-start=\"900\" data-end=\"1306\"\u003eOur \u003ca href=\"\/products\/volcalis-44-easy-light-loft-roll-insulation\" title=\"roof insulation\"\u003e\u003cstrong data-start=\"904\" data-end=\"923\"\u003eroof insulation\u003c\/strong\u003e\u003c\/a\u003e products provide excellent thermal resistance, helping to retain heat in winter and keep your property cool in summer. Suitable for pitched or flat roofs, they are easy to fit between rafters or joists and meet current UK building regulations. Investing in quality \u003cstrong data-start=\"1189\" data-end=\"1208\"\u003einsulation loft\u003c\/strong\u003e materials can significantly improve your property’s EPC rating and long-term energy efficiency.\u003c\/p\u003e\n\u003ch3 data-start=\"1308\" data-end=\"1371\"\u003eKnauf Loft Roll for Trusted Quality and Easy Installation\u003c\/h3\u003e\n\u003cp data-start=\"1373\" data-end=\"1828\"\u003eWe proudly supply \u003ca href=\"\/products\/knauf-loft-roll-44-insulation-combi-cut\" title=\"Knauf loft roll\"\u003e\u003cstrong data-start=\"1391\" data-end=\"1410\"\u003eKnauf loft roll\u003c\/strong\u003e\u003c\/a\u003e, one of the UK’s leading insulation solutions. Lightweight, flexible, and simple to cut to size, these rolls are perfect for quick installation between ceiling joists. Made from non-combustible glass mineral wool, \u003cstrong data-start=\"1625\" data-end=\"1644\"\u003eKnauf loft roll\u003c\/strong\u003e provides excellent fire safety, sound absorption, and long-term thermal performance. It’s a reliable option for anyone looking to upgrade their \u003cstrong data-start=\"1789\" data-end=\"1813\"\u003eloft roll insulation\u003c\/strong\u003e efficiently.\u003c\/p\u003e\n\u003ch3 data-start=\"1830\" data-end=\"1893\"\u003eLoft Roll Insulation for Domestic and Commercial Projects\u003c\/h3\u003e\n\u003cp data-start=\"1895\" data-end=\"2246\"\u003eOur \u003ca href=\"\/products\/superglass-44-multi-roll-loft-insulation\" title=\"loft roll insulation\"\u003e\u003cstrong data-start=\"1899\" data-end=\"1923\"\u003eloft roll insulation\u003c\/strong\u003e\u003c\/a\u003e range is designed for versatility. It’s ideal for houses, extensions, and commercial spaces where improved thermal efficiency and comfort are a priority. With a range of thicknesses available, you can meet or exceed building regulations while reducing heat loss and improving the overall sustainability of your property.\u003c\/p\u003e\n\u003ch3 data-start=\"2248\" data-end=\"2307\"\u003eWhy Choose Loft Insulation from JJ Building Materials\u003c\/h3\u003e\n\u003cp data-start=\"2309\" data-end=\"2547\"\u003eHigh-performance \u003cstrong data-start=\"2326\" data-end=\"2345\"\u003eloft insulation\u003c\/strong\u003e suitable for all roof types\u003cbr data-start=\"2373\" data-end=\"2376\"\u003eTrusted brands including \u003cstrong data-start=\"2401\" data-end=\"2420\"\u003eKnauf loft roll\u003c\/strong\u003e\u003cbr data-start=\"2420\" data-end=\"2423\"\u003eCompliant with UK building standards\u003cbr data-start=\"2459\" data-end=\"2462\"\u003eExcellent thermal and acoustic performance\u003cbr data-start=\"2504\" data-end=\"2507\"\u003eNationwide delivery and expert support\u003c\/p\u003e\n\u003ch3 data-start=\"2549\" data-end=\"2559\"\u003eFAQs\u003c\/h3\u003e\n\u003ch4 data-start=\"2561\" data-end=\"2604\"\u003eHow thick should loft insulation be?\u003c\/h4\u003e\n\u003cp data-start=\"2605\" data-end=\"2778\"\u003eMost UK homes require \u003cstrong data-start=\"2627\" data-end=\"2646\"\u003eloft insulation\u003c\/strong\u003e between 270 mm and 400 mm thick to meet current energy-efficiency standards. Adding more insulation can further reduce heat loss.\u003c\/p\u003e\n\u003ch4 data-start=\"2780\" data-end=\"2853\"\u003eWhat’s the difference between loft insulation and roof insulation?\u003c\/h4\u003e\n\u003cp data-start=\"2854\" data-end=\"3141\"\u003e\u003cstrong data-start=\"2854\" data-end=\"2873\"\u003eRoof insulation\u003c\/strong\u003e is fitted between rafters or on the underside of the roof, while \u003cstrong data-start=\"2939\" data-end=\"2958\"\u003eloft insulation\u003c\/strong\u003e (or \u003cstrong data-start=\"2963\" data-end=\"2982\"\u003einsulation loft\u003c\/strong\u003e) sits on the loft floor. Both improve thermal performance, but roof insulation keeps the loft warm while loft-floor insulation keeps the rooms below warmer.\u003c\/p\u003e\n\u003ch4 data-start=\"3143\" data-end=\"3177\"\u003eWhy choose Knauf loft roll?\u003c\/h4\u003e\n\u003cp data-start=\"3178\" data-end=\"3422\"\u003e\u003cstrong data-start=\"3178\" data-end=\"3197\"\u003eKnauf loft roll\u003c\/strong\u003e is a trusted, easy-to-install product made from sustainable glass mineral wool. It delivers exceptional fire, acoustic, and thermal performance, making it one of the most popular \u003cstrong data-start=\"3377\" data-end=\"3401\"\u003eloft roll insulation\u003c\/strong\u003e options in the UK.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'Arial',sans-serif;\"\u003eCheck out our other \u003ca href=\"\/collections\/insulation\" title=\"Insulation\"\u003e\u003cb\u003eInsulation\u003c\/b\u003e\u003c\/a\u003e range at JJ Building Materials.\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"superglass-44-multi-roll-loft-insulation","title":"Superglass 44 Multi-Roll Loft Insulation","description":"Superglass Multi-Roll 44 is a high-quality, non-combustible glass mineral wool insulation roll designed to provide excellent thermal performance in loft spaces. It comes partially perforated, so you can easily use it between standard joist widths or lay it as a continuous full-width layer over the top of joists—reducing cutting, waste, and installation time.\n\nThis flexible roll format is particularly useful for both professional installers and DIY homeowners looking to improve the energy efficiency of new or existing homes.\n\n\u003ch3\u003eIdeal for Loft and Cold Roof Applications\u003c\/h3\u003e\nSuperglass Multi-Roll 44 is specifically made for thermal insulation in lofts and cold pitched roofs. It can be installed between timber joists to insulate the ceiling of the space below or laid over joists to reduce heat loss through the roof structure.\n\nThanks to its user-friendly design, you’ll find it quick to fit, and the flexibility of the roll means it can adapt easily to most spaces without leaving gaps that can reduce thermal performance.\n\n\u003ch3\u003eReliable Thermal and Fire Safety Performance\u003c\/h3\u003e\nThis insulation roll provides a declared thermal conductivity of 0.044W\/mK, helping to reduce energy bills by keeping more warmth inside the home during colder months.\n\nWhen it comes to fire safety, Superglass Multi-Roll 44 is Euroclass A1-rated, meaning it’s non-combustible and meets the highest possible standard when tested to BS EN 13501-1:2018. It’s a reassuring choice for any residential or commercial insulation project.\n\nSuperglass Multi-Roll 44 also holds a CCPI (Code for Construction Product Information) assessment, with certificate number 005800129\/0227, confirming its reliable, transparent performance data.\n\n\u003ch3\u003eAvailable Sizes and Coverage\u003c\/h3\u003e\nSuperglass 44 Multi-Roll is available in a range of thicknesses and roll sizes to suit various insulation needs:\n\n100mm x 1200mm x 10,100mm – covers 12.12m²\n\n150mm x 1160mm x 6,650mm – covers 7.71m²\n\n170mm x 1160mm x 5,800mm – covers 6.73m²\n\n200mm x 1160mm x 4,850mm – covers 5.63m²\n\nChoose the right thickness depending on your insulation targets and how much loft space you have available.\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e \u003ch4\u003e1. Can I install Superglass 44 Multi-Roll myself?\u003c\/h4\u003e Yes! The rolls are **lightweight, flexible, and partially perforated**, making them easy to handle and fit between or over joists. If you follow the proper safety guidance and wear protective gear, this is a very **DIY-friendly insulation option**. \u003ch4\u003e2. Is this insulation safe in case of fire?\u003c\/h4\u003e Absolutely. Superglass 44 is rated **Euroclass A1** under BS EN 13501-1:2018, which is the **highest fire safety classification** for building materials. It’s considered non-combustible, making it a very safe choice for residential and commercial properties. \u003ch4\u003e3. What’s the difference between the thickness options?\u003c\/h4\u003e The main difference is **thermal performance**. Thicker rolls provide more insulation, helping to retain more heat. For example, a 200mm roll will generally offer **better thermal resistance** than a 100mm roll. Choose based on your energy efficiency goals and loft depth.\u003cbr\u003e\u003cp\u003eCheck out our full range of \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/insulation\"\u003einsulation\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eBrowse more \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/loft-insulation\"\u003eloft insulation\u003c\/a\u003e available online.\u003c\/p\u003e","brand":"Superglass","offers":[{"title":"100mmx1200x10100 (12.12m2)","offer_id":51553819525462,"sku":"151912","price":42.13,"currency_code":"GBP","in_stock":true},{"title":"150mmx1160x6650 (7.71m2)","offer_id":51553819558230,"sku":"151913","price":39.6,"currency_code":"GBP","in_stock":true},{"title":"170mmx1160x5800 (6.73m2)","offer_id":51553819590998,"sku":"151914","price":38.8,"currency_code":"GBP","in_stock":true},{"title":"200mmx1160x4850 (5.63m2)","offer_id":51553819623766,"sku":"151915","price":37.77,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/4509\/4998\/files\/superglass-44-multi-roll-loft-insulation-9875041.jpg?v=1772656580"},{"product_id":"knauf-loft-roll-44-insulation-combi-cut","title":"Knauf Loft Roll 44 Insulation Combi Cut","description":"Knauf Insulation Loft Roll 44 is a high-performance glass mineral wool insulation roll, ideal for use in cold lofts where pitched roofs are insulated at ceiling level. Designed to deliver excellent thermal performance, it’s a trusted solution for improving energy efficiency in homes and buildings.\n\nMade using ECOSE® Technology, Knauf’s bio-based binder, this insulation is kinder to the environment and safer to handle — with no added formaldehyde and less dust or odour. It’s also completely non-combustible, carrying the highest possible Euroclass A1 fire rating, offering extra peace of mind in any residential or commercial setting.\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\nKnauf Loft Roll 44 is available in two formats:\n\nCombi-cut rolls, which are partially perforated for flexible installation between joists or as full-width coverage\n\nReady-cut rolls, pre-slit to specific widths for quick placement between standard joist spacings\n\nAll rolls are supplied in long lengths, making them fast and easy to install — perfect for speeding up insulation jobs. Lightweight and compression-packed, they’re also convenient to carry and store, whether you’re working on a single property or across a larger site.\n\n\u003ch3\u003eThermal and Fire Performance\u003c\/h3\u003e\nThermal conductivity: 0.044 W\/m·K\n\nFire rating: Euroclass A1 – the highest level of non-combustibility under EN 13501-1\n\nSustainable production: Made using recycled materials and ECOSE® binder for improved indoor air quality\n\n\u003ch3\u003eAvailable Thicknesses \u0026amp; Coverage\u003c\/h3\u003e\n100mm: 13.89m² per roll\n\n150mm: 9.18m² per roll\n\n170mm: 8.01m² per roll\n\n200mm: 5.93m² per roll\n\nWhether you're topping up existing insulation or starting from scratch, there’s a size to suit every loft project.\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e \u003ch4\u003e1. Can I install Loft Roll 44 myself, or do I need a professional?\u003c\/h4\u003e Loft Roll 44 is designed to be DIY-friendly. Its combi-cut format makes it easy to fit between joists without extra cutting. Just remember to wear gloves and a mask for comfort and safety. \u003ch4\u003e2. What makes ECOSE® Technology better than traditional insulation binders?\u003c\/h4\u003e ECOSE® Technology uses a natural, formaldehyde-free binder made from rapidly renewable materials. It produces less dust, has a softer feel, and improves indoor air quality — all while offering strong performance and durability. \u003ch4\u003e3. Is 200mm insulation enough for building regulations?\u003c\/h4\u003e Generally, 270mm total depth is recommended to meet current **Part L** UK building regulations for loft insulation. You can achieve this by layering, for example: 100mm between joists and 170mm across joists.\u003cbr\u003e\u003cp\u003eCheck out our full range of \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/insulation\"\u003einsulation\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eBrowse more \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/loft-insulation\"\u003eloft insulation\u003c\/a\u003e available online.\u003c\/p\u003e","brand":"Knauf","offers":[{"title":"100mmn (13.89m2)","offer_id":51553820410198,"sku":"125834","price":48.43,"currency_code":"GBP","in_stock":true},{"title":"150mm (9.18m2)","offer_id":51553820442966,"sku":"110507","price":46.93,"currency_code":"GBP","in_stock":true},{"title":"170mm (8.01m2)","offer_id":51553820475734,"sku":"110506","price":46.42,"currency_code":"GBP","in_stock":true},{"title":"200mm (5.93m2)","offer_id":51553820508502,"sku":"112123","price":40.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/4509\/4998\/files\/knauf-loft-roll-44-insulation-combi-cut-5860159.jpg?v=1772656581"},{"product_id":"volcalis-44-easy-light-loft-roll-insulation","title":"Volcalis 44 Easy Light Loft Roll Insulation","description":"Volcalis EASY Light Loft Roll 44 is a high-performance mineral wool insulation designed to provide excellent thermal and acoustic efficiency. Lightweight and simple to install, it's a great choice for homeowners, contractors, and builders working on both new constructions and renovation projects. Whether you're insulating ceilings, pitched roofs, or metal roof systems, this insulation roll delivers reliable performance that helps maintain warmth in winter and coolness in summer.\n\n\u003ch3\u003eComfort Meets Efficiency\u003c\/h3\u003e\nThanks to its carefully developed structure, Volcalis EASY not only improves thermal insulation but also significantly reduces sound transmission. It enhances indoor comfort by dampening external noise, making it an ideal solution for lofts, attics, and living spaces. The roll is soft to the touch, making installation comfortable and less physically demanding—even for first-time users.\n\n\u003ch3\u003eEnvironmentally Responsible \u0026amp; Safe\u003c\/h3\u003e\nVolcalis EASY is manufactured using sustainable raw materials, making it a 100% recyclable and eco-conscious insulation solution. In addition to being environmentally friendly, it's non-combustible and does not conduct heat, offering peace of mind when it comes to fire safety. It’s a smart, safe, and sustainable choice for anyone looking to boost their building’s efficiency and environmental credentials.\n\n\u003ch3\u003eProduct Highlights\u003c\/h3\u003e\nLightweight and easy to carry, cut, and install\n\nDelivers excellent thermal insulation for improved energy efficiency\n\nExceptional acoustic performance helps reduce noise\n\nSoft texture enhances installer comfort\n\nNon-combustible and thermally safe\n\nIdeal for use in ceilings, pitched roofs, and façades\n\nMade from sustainable materials and 100% recyclable\n\nSuitable for both new build and renovation projects\n\n\u003ch3\u003eAvailable Sizes\u003c\/h3\u003e\n100mm x 1200mm x 9000mm (10.8m² coverage)\n\n150mm x 1200mm x 8000mm (9.6m² coverage)\n\n200mm x 1200mm x 6000mm (7.2m² coverage)\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e \u003ch4\u003eCan Volcalis EASY be used for soundproofing?\u003c\/h4\u003e Yes, Volcalis EASY provides **superior acoustic insulation**, making it great for reducing noise between rooms or floors in residential or commercial spaces. \u003ch4\u003eIs this insulation safe to work with?\u003c\/h4\u003e Absolutely. The product has a **soft touch and is low-irritant**, making it comfortable and safe for installers to handle without needing specialist PPE. \u003ch4\u003eIs Volcalis EASY suitable for eco-friendly construction?\u003c\/h4\u003e Yes, it's made from **sustainable raw materials**, is **100% recyclable**, and supports green building practices by improving energy efficiency and reducing environmental impact.\u003cbr\u003e\u003cp\u003eCheck out our full range of \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/insulation\"\u003einsulation\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eBrowse more \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/loft-insulation\"\u003eloft insulation\u003c\/a\u003e available online.\u003c\/p\u003e","brand":"Volcalis","offers":[{"title":"100x1200x9000mm (10.8m2)","offer_id":51553824571734,"sku":"152036","price":31.71,"currency_code":"GBP","in_stock":true},{"title":"150x1200x8000mm (9.6m2)","offer_id":51553824604502,"sku":"152037","price":40.96,"currency_code":"GBP","in_stock":true},{"title":"200x1200x6000mm  (7.2m2)","offer_id":51553824637270,"sku":"152038","price":40.91,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/4509\/4998\/files\/volcalis-44-easy-light-loft-roll-insulation-4816051.jpg?v=1772656520"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/4509\/4998\/collections\/loft-insulation-9937933.webp?v=1772638502","url":"https:\/\/jjbuildingmaterials.co.uk\/collections\/loft-insulation.oembed","provider":"JJ Building Materials","version":"1.0","type":"link"}