{"title":"Loft Insulation","description":"","products":[{"product_id":"100mm-knauf-earthwool-loft-roll-44-insulation-combi-cut-pallet-of-24-rolls-333-24m2-pallet","title":"100mm Knauf Loft Roll 44 Insulation Combi-Cut - Pallet of 24 Rolls (333.24m2\/Pallet)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eInsulation pallets ensure you can complete large construction projects with ultimate efficiency. When you purchase in bulk;\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThe cost per unit decreases, allowing for a greater return on your investment.\u003c\/li\u003e\n\u003cli\u003eYou won’t have to worry about your insulation getting damaged in transit.\u003c\/li\u003e\n\u003cli\u003eBuying smaller quantities more regularly is a pricier route as you will have to factor in surcharges every time - so it makes sense to stock up.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximises efficiency \u0026amp; productivity: \u003c\/strong\u003eReduces the time workers spend waiting for materials to arrive onsite.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnsures uniformity in all your projects:\u003c\/strong\u003e Maintained consistency of product.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEradicates lead time issues: \u003c\/strong\u003eBy having a ready supply of inventory for your work, you can crack on with no holdbacks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfitable: \u003c\/strong\u003eBulk buying offers better prices than purchasing in smaller batches, making it an advantageous investment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSaves time:\u003c\/strong\u003e Having supplies readily available at the site fosters a faster completion of the project. Moreover, it makes life much more comfortable for those on-site!\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Knauf Insulation","offers":[{"title":"100mm","offer_id":53771520278639,"sku":"3003102","price":890.27,"currency_code":"GBP","in_stock":true},{"title":"150mm","offer_id":53771520311407,"sku":"3003103","price":905.47,"currency_code":"GBP","in_stock":true},{"title":"170mm","offer_id":53771520344175,"sku":"3003104","price":905.47,"currency_code":"GBP","in_stock":true},{"title":"200mm","offer_id":53771520376943,"sku":"3003105","price":905.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/multiple_packs_of_knauf_loft_roll_44.jpg?v=1783758592"},{"product_id":"100mm-knauf-earthwool-loft-roll-44-insulation-combi-cut-13-89m2-roll","title":"100mm Knauf Loft Roll 44 Insulation Combi-Cut (13.89m2\/Roll)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eGlass mineral wool insulation roll, measuring 100mm in thickness and supplied in a combi-cut format for loft applications.\u003cbr\u003e\u003cbr\u003eManufactured using ECOSE® Technology with a high recycled content, the roll combines effective thermal insulation with a reduced environmental impact.\u003cbr\u003e\u003cbr\u003eCombi-cut part-splits allow installation as either 2 × 570mm or 3 × 380mm widths, aligning with both 400mm and 600mm joist centres for straightforward fitting and minimal waste.\u003cbr\u003e\u003cbr\u003eThe flexible composition adapts to minor surface irregularities and knits together at joins, helping to maintain continuous coverage without gaps.\u003cbr\u003e\u003cbr\u003eWith a thermal conductivity of 0.044 W\/mK and a Euroclass A1 non-combustible rating, the roll delivers dependable thermal performance and the highest level of fire safety.\u003cbr\u003e\u003cbr\u003eAt 100mm thick, it is most commonly used as a top-up layer over existing insulation to help boost overall loft performance.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass mineral wool composition:\u003c\/strong\u003e Provides dependable acoustic absorption alongside strong thermal insulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade from recycled glass:\u003c\/strong\u003e High recycled content supports sustainability and reduces environmental impact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECOSE® Technology:\u003c\/strong\u003e Uses a formaldehyde-free binder for improved indoor air quality and lower embodied energy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombi-Cut flexibility:\u003c\/strong\u003e Pre-split to suit both 400mm and 600mm joist centres, reducing waste and speeding up installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResilient quilt form:\u003c\/strong\u003e Recovers thickness after compression, ensuring consistent thermal performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdapts to surfaces:\u003c\/strong\u003e Conforms to slight irregularities in the substrate to improve coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnits together in place:\u003c\/strong\u003e Quilts interlock to minimise air gaps, maintaining reliable performance across the loft area.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEuroclass A1 fire rating:\u003c\/strong\u003e Non-combustible for maximum fire safety within the building fabric.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal conductivity 0.044 W\/mK:\u003c\/strong\u003e Ensures effective heat retention, supporting energy savings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight and flexible:\u003c\/strong\u003e Easy to handle, carry, and fit in confined loft spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100mm thickness:\u003c\/strong\u003e Ideal for increasing overall loft performance by supplementing existing insulation.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoft top-up insulation:\u003c\/strong\u003e Commonly used as an additional layer over existing insulation to bring total depth closer to current Building Regulation standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBetween joists (first layer):\u003c\/strong\u003e Can be installed between timber joists at ceiling level, though usually combined with further layers to achieve full thermal performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-layering:\u003c\/strong\u003e Suitable for cross-laying above joists to reduce thermal bridging when used with a thicker base layer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuspended timber floors:\u003c\/strong\u003e Can provide thermal and acoustic insulation between joists where a shallower depth is required.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall between joists as first layer:\u003c\/strong\u003e Creates base thermal coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLay second layer at right angles:\u003c\/strong\u003e Enhances performance by reducing gaps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnsure tight fit with no voids:\u003c\/strong\u003e Maintains insulation continuity.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBS EN 13162 certified:\u003c\/strong\u003e Meets requirements for mineral wool insulation products.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEuroclass A1 fire rating:\u003c\/strong\u003e Fully non-combustible material.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneric BRE Green Guide rating A+:\u003c\/strong\u003e Recognised as environmentally preferable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero ODP and Zero GWP:\u003c\/strong\u003e Contains no ozone-depleting or greenhouse gas substances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDECLARE Red List Free label:\u003c\/strong\u003e Free from formaldehyde, phenol, and other restricted substances.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Knauf Insulation","offers":[{"title":"100mm","offer_id":53771533320303,"sku":"3003046","price":38.64,"currency_code":"GBP","in_stock":false},{"title":"150mm","offer_id":53771533353071,"sku":"3003047","price":39.3,"currency_code":"GBP","in_stock":false},{"title":"170mm","offer_id":53771533385839,"sku":"3003048","price":39.3,"currency_code":"GBP","in_stock":false},{"title":"200mm","offer_id":53771533418607,"sku":"3003049","price":39.3,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/100mm_knauf_loft_roll_44_unwrapping.jpg?v=1783758668"},{"product_id":"100mm-celotex-ga4100-pir-insulation-board-2400mm-x-1200mm","title":"100mm Celotex GA4100 PIR Insulation Board 2400mm x 1200mm","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eFoil-faced PIR insulation board, measuring 100mm in thickness for use in floors, walls, and roofs. \u003cbr\u003e\u003cbr\u003eManufactured as part of the GA4000 range, it is intended for general application, meaning it can be confidently specified across a broad spectrum of build-ups without the need for specialist products.\u003cbr\u003e\u003cbr\u003eThe board consists of a rigid polyisocyanurate (PIR) core faced with low-emissivity foil on both sides. This construction provides excellent thermal resistance, helping to reduce heat loss through the building fabric while also acting as a vapour control layer. \u003cbr\u003e\u003cbr\u003eAt 100mm thick, the most widely used thickness in the GA range, it is sized to fit most standard cavities and joist depths, making it straightforward to integrate into typical construction details.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal conductivity (0.022 W\/m·K):\u003c\/strong\u003e Reduces the thickness required to meet U-value targets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-emissivity foil facings:\u003c\/strong\u003e Reflect radiant heat across cavity air spaces, improving overall efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGA4000 range (general application):\u003c\/strong\u003e Suitable for versatile use across roofs, walls, and floors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid PIR core:\u003c\/strong\u003e Lightweight yet robust, easy to cut and install with standard tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture resistance:\u003c\/strong\u003e Closed-cell core prevents water uptake and preserves thermal performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental credentials:\u003c\/strong\u003e Zero ODP, low GWP blowing agent, and BRE Green Guide Rating A.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBBA certified (17\/5405, 16\/5352):\u003c\/strong\u003e Independent assurance of performance across roofs, walls, and floors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoard size 2400 × 1200mm:\u003c\/strong\u003e Supplied in the industry-standard sheet size for insulation, ensuring compatibility across typical build-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness 100mm:\u003c\/strong\u003e Popular and practical size for achieving strong thermal performance in standard build-ups.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral insulation:\u003c\/strong\u003e Versatile board suitable for a wide range of domestic and commercial applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBeam and block flooring\u003c\/strong\u003e: Maximum efficiency 100mm PIR boards are installed over the structural floor to provide a continuous thermal barrier beneath sand and cement or liquid screeds. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConcrete slab and oversite floors\u003c\/strong\u003e: High compressive strength enables boards to be laid directly over or under ground-bearing slabs to ensure the lowest possible U-values in new-build construction. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuspended timber floors\u003c\/strong\u003e: Rigid boards are cut-to-fit and friction-supported between floor joists to significantly reduce heat loss through ventilated sub-floor voids. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConcrete slab overlays\u003c\/strong\u003e: Standard 100mm thickness allows for the upgrade of existing concrete floors to provide a thermal barrier equivalent to modern new-build specifications. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnderfloor heating systems\u003c\/strong\u003e: Reflective foil facers on both sides of the board enhance the efficiency of underfloor heating by reflecting heat upwards into the living space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTimber frame wall insulation\u003c\/strong\u003e: Maximum efficiency 100mm PIR boards are friction-fitted between timber studs to ensure the highest possible thermal ratings in wall assemblies. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMasonry wall dry-lining\u003c\/strong\u003e: Flagship 100mm boards are fixed to the internal face of solid or cavity masonry walls to provide a thermal barrier equivalent to modern new-build specifications. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitched roof insulation\u003c\/strong\u003e: Full-thickness 100mm boards are installed between or over rafters to create a high-specification, regulation-compliant thermal envelope. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat roof insulation\u003c\/strong\u003e: High compressive strength allows for installation beneath a waterproof membrane or over a structural deck to provide the ultimate thermal solution for the roof covering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSummerhouse and garden room insulation\u003c\/strong\u003e: High-performance 0.022 W\/mK thermal conductivity provides maximum heat retention within timber stud walls and roof rafters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConservatory warm-roof conversions\u003c\/strong\u003e: Optimum 100mm thickness enables roof structures to meet or exceed Part L U-value requirements during solid-roof upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasuring and cutting\u003c\/strong\u003e: Measure the aperture accurately and cut the board using a fine-toothed saw or sharp knife for a tight friction fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositioning and fixing\u003c\/strong\u003e: Place the board securely against the substrate or between structural members, ensuring no gaps are left between adjacent boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealing joints\u003c\/strong\u003e: Apply high-quality aluminium foil tape to all board joints to maintain the integrity of the vapour control layer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical attachment\u003c\/strong\u003e: Use appropriate insulation fixings or adhesive as specified by the project requirements to secure boards to walls or ceilings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire lining (wall applications)\u003c\/strong\u003e: Ensure the insulation used in wall applications is covered with a fire-rated lining, such as 12.5mm plasterboard, to meet safety requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal conductivity\u003c\/strong\u003e: Achieves a declared Lambda value of 0.022 W\/mK in accordance with BS EN 13165. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressive strength\u003c\/strong\u003e: Rated at ≥140 kPa when tested to BS EN 826, making it suitable for floor applications subject to light loads. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUK Building Regulations Part L\u003c\/strong\u003e: Helps meet Part L (Fuel and Power) requirements; however, 100mm may require additional layers to meet specific new-build U-value targets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUK Building Regulations Part B\u003c\/strong\u003e: Rated as Euroclass E in accordance with BS EN 13501-1; this material is combustible and must be installed behind a fire-rated lining in wall applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUK Building Regulations Part C\u003c\/strong\u003e: Requires the use of a separate Vapour Control Layer (VCL) and taped joints in many applications to prevent interstitial condensation as per Part C (Site preparation and resistance to contaminants and moisture). \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental impact\u003c\/strong\u003e: Zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP) during the manufacturing process. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note\u003c\/strong\u003e: UK Building Regulations vary by project and location; always consult a Building Control Officer or Architect to confirm this thickness meets the legal U-value requirements for your specific build.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eWhat Customers Are Saying\u003c\/h2\u003e\u003cp\u003eCustomers consistently praise the Celotex GA4100 for its ease of cutting and fitting, particularly in summerhouse, loft conversion and extension projects. Several reviewers highlight how cleanly the boards slot between studs and rafters with minimal waste. Delivery speed and condition on arrival are frequently mentioned, with buyers noting boards arrived undamaged and on schedule. Trade professionals and DIYers alike rate the thermal performance highly, with multiple customers reporting noticeable improvements in room temperature. The competitive pricing compared to other PIR boards is a recurring positive, with several repeat buyers citing Materials Market as their preferred supplier.\u003cbr\u003e\u003cbr\u003e\u003cem\u003eSummarised by AI from customer reviews.\u003c\/em\u003e\u003c\/p\u003e","brand":"Celotex","offers":[{"title":"100mm","offer_id":53771588206703,"sku":"3001017","price":50.39,"currency_code":"GBP","in_stock":true},{"title":"110mm","offer_id":53771588239471,"sku":"3001018","price":58.98,"currency_code":"GBP","in_stock":true},{"title":"120mm","offer_id":53771588272239,"sku":"3001019","price":63.6,"currency_code":"GBP","in_stock":true},{"title":"125mm","offer_id":53771588305007,"sku":"3001153","price":74.03,"currency_code":"GBP","in_stock":true},{"title":"130mm","offer_id":53771588337775,"sku":"3001020","price":73.28,"currency_code":"GBP","in_stock":true},{"title":"140mm","offer_id":53771588370543,"sku":"3001021","price":73.08,"currency_code":"GBP","in_stock":true},{"title":"150mm","offer_id":53771588403311,"sku":"3001022","price":75.59,"currency_code":"GBP","in_stock":true},{"title":"165mm","offer_id":53771588436079,"sku":"3001308","price":108.6,"currency_code":"GBP","in_stock":true},{"title":"200mm","offer_id":53771588468847,"sku":"3001309","price":140.95,"currency_code":"GBP","in_stock":true},{"title":"20mm","offer_id":53771588501615,"sku":"3001023","price":21.36,"currency_code":"GBP","in_stock":true},{"title":"25mm","offer_id":53771588534383,"sku":"3001024","price":19.98,"currency_code":"GBP","in_stock":true},{"title":"30mm","offer_id":53771588567151,"sku":"3001025","price":21.94,"currency_code":"GBP","in_stock":true},{"title":"40mm","offer_id":53771588599919,"sku":"3001026","price":26.88,"currency_code":"GBP","in_stock":true},{"title":"50mm","offer_id":53771588632687,"sku":"3001027","price":28.08,"currency_code":"GBP","in_stock":true},{"title":"60mm","offer_id":53771588665455,"sku":"3001028","price":36.06,"currency_code":"GBP","in_stock":true},{"title":"70mm","offer_id":53771588698223,"sku":"3001029","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"75mm","offer_id":53771588730991,"sku":"3001030","price":41.99,"currency_code":"GBP","in_stock":true},{"title":"80mm","offer_id":53771588763759,"sku":"3001031","price":44.04,"currency_code":"GBP","in_stock":true},{"title":"90mm","offer_id":53771588796527,"sku":"3001032","price":48.48,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/100mm_celotex_sheet_logo.jpg?v=1783758935"}],"url":"https:\/\/supplyyard.co.uk\/collections\/loft-insulation.oembed","provider":"Supply Yard","version":"1.0","type":"link"}