{"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","url":"https:\/\/supplyyard.co.uk\/products\/100mm-knauf-earthwool-loft-roll-44-insulation-combi-cut-13-89m2-roll","provider":"Supply Yard","version":"1.0","type":"link"}