{"product_id":"celotex-xr4000-pir-insulation-board","title":"Celotex XR4000 General Purpose PIR Insulation Board","description":"\u003ch1 data-start=\"3990\" data-end=\"4059\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"3990\" data-end=\"4059\"\u003eHigh-Performance PIR Insulation Board for Walls, Floors and Roofs\u003c\/strong\u003e\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp data-start=\"4061\" data-end=\"4316\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"4061\" data-end=\"4079\"\u003eCelotex XR4000\u003c\/strong\u003e is a high-performance rigid PIR insulation board designed for projects that need stronger thermal performance in a single board layer. It is suitable for use in floors, walls and roofs across domestic and commercial insulation projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"4318\" data-end=\"4567\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEach board measures \u003cstrong data-start=\"4338\" data-end=\"4357\"\u003e2400mm x 1200mm\u003c\/strong\u003e and covers \u003cstrong data-start=\"4369\" data-end=\"4379\"\u003e2.88m²\u003c\/strong\u003e. The XR4000\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"4318\" data-end=\"4567\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e range is available in thicker insulation options from \u003cstrong data-start=\"4446\" data-end=\"4464\"\u003e110mm to 200mm\u003c\/strong\u003e, making it suitable where lower U-values are required or where a higher insulation depth is specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"4569\" data-end=\"4852\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe board has a rigid PIR insulation core with low-emissivity foil facings on both sides. It offers a thermal conductivity of \u003cstrong data-start=\"4695\" data-end=\"4709\"\u003e0.022 W\/mK\u003c\/strong\u003e, helping reduce heat loss while keeping the insulation board lightweight, rigid and easy to cut on site. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-start=\"4854\" data-end=\"4869\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eKey features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"4871\" data-end=\"5226\"\u003e\n\u003cli data-start=\"4871\" data-end=\"4910\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHigh-performance PIR insulation board\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-start=\"4911\" data-end=\"4949\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSuitable for walls, floors and roofs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-start=\"4950\" data-end=\"4994\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIdeal where thicker insulation is required\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-start=\"4995\" data-end=\"5023\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e2400mm x 1200mm board size\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-start=\"5024\" data-end=\"5051\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e2.88m² coverage per board\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-start=\"5052\" data-end=\"5096\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eLow thermal conductivity of \u003cstrong data-start=\"5082\" data-end=\"5096\"\u003e0.022 W\/mK\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-start=\"5097\" data-end=\"5123\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFoil-faced on both sides\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-start=\"5124\" data-end=\"5160\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eLightweight, rigid and easy to cut\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-start=\"5161\" data-end=\"5226\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAvailable in 110mm, 120mm, 130mm, 140mm, 150mm, 165mm and 200mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"5228\" data-end=\"5255\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTechnical specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"5257\" data-end=\"5632\" class=\"w-fit min-w-(--thread-content-width)\" style=\"width: 100%; height: 195.938px;\"\u003e\n\u003cthead data-start=\"5257\" data-end=\"5283\"\u003e\n\u003ctr data-start=\"5257\" data-end=\"5283\" style=\"height: 19.5938px;\"\u003e\n\u003cth data-start=\"5257\" data-end=\"5273\" data-col-size=\"sm\" class=\"last:pe-10\" style=\"width: 25.6863%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth data-start=\"5273\" data-end=\"5283\" data-col-size=\"md\" class=\"last:pe-10\" style=\"width: 73.9216%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDetail\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"5294\" data-end=\"5632\"\u003e\n\u003ctr data-start=\"5294\" data-end=\"5343\" style=\"height: 19.5938px;\"\u003e\n\u003ctd data-start=\"5294\" data-end=\"5304\" data-col-size=\"sm\" style=\"width: 25.6863%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eProduct\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5304\" data-end=\"5343\" data-col-size=\"md\" style=\"width: 73.9216%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCelotex XR4000 PIR Insulation Board\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5344\" data-end=\"5376\" style=\"height: 19.5938px;\"\u003e\n\u003ctd data-start=\"5344\" data-end=\"5357\" data-col-size=\"sm\" style=\"width: 25.6863%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eBoard size\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5357\" data-end=\"5376\" data-col-size=\"md\" style=\"width: 73.9216%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e2400mm x 1200mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5377\" data-end=\"5408\" style=\"height: 19.5938px;\"\u003e\n\u003ctd data-start=\"5377\" data-end=\"5388\" data-col-size=\"sm\" style=\"width: 25.6863%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCoverage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5388\" data-end=\"5408\" data-col-size=\"md\" style=\"width: 73.9216%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e2.88m² per board\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5409\" data-end=\"5445\" style=\"height: 19.5938px;\"\u003e\n\u003ctd data-start=\"5409\" data-end=\"5427\" data-col-size=\"sm\" style=\"width: 25.6863%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThickness range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5427\" data-end=\"5445\" data-col-size=\"md\" style=\"width: 73.9216%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e110mm to 200mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5446\" data-end=\"5471\" style=\"height: 19.5938px;\"\u003e\n\u003ctd data-start=\"5446\" data-end=\"5464\" data-col-size=\"sm\" style=\"width: 25.6863%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eInsulation type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5464\" data-end=\"5471\" data-col-size=\"md\" style=\"width: 73.9216%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePIR\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5472\" data-end=\"5515\" style=\"height: 19.5938px;\"\u003e\n\u003ctd data-start=\"5472\" data-end=\"5481\" data-col-size=\"sm\" style=\"width: 25.6863%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFacing\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5481\" data-end=\"5515\" data-col-size=\"md\" style=\"width: 73.9216%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eLow-emissivity foil both sides\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5516\" data-end=\"5553\" style=\"height: 39.1875px;\"\u003e\n\u003ctd data-start=\"5516\" data-end=\"5539\" data-col-size=\"sm\" style=\"width: 25.6863%; height: 39.1875px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThermal conductivity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5539\" data-end=\"5553\" data-col-size=\"md\" style=\"width: 73.9216%; height: 39.1875px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e0.022 W\/mK\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5554\" data-end=\"5632\" style=\"height: 19.5938px;\"\u003e\n\u003ctd data-start=\"5554\" data-end=\"5568\" data-col-size=\"sm\" style=\"width: 25.6863%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eApplication\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"5568\" data-end=\"5632\" style=\"width: 73.9216%; height: 19.5938px;\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWalls, floors, roofs and high-performance thermal insulation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"text-base my-auto mx-auto [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"4e1cda5a-686c-4ead-84c8-c67071576683\" dir=\"auto\" data-message-model-slug=\"gpt-5-5-thinking\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003ch1 data-start=\"6495\" data-end=\"6500\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFAQ\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp data-start=\"6502\" data-end=\"6663\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"6502\" data-end=\"6538\"\u003eWhat is Celotex XR4000 used for?\u003c\/strong\u003e\u003c\/span\u003e\u003cbr data-start=\"6538\" data-end=\"6541\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCelotex XR4000 is used for thermal insulation in walls, floors and roofs where higher insulation thicknesses are required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"6665\" data-end=\"6752\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"6665\" data-end=\"6693\"\u003eWhat size is each board?\u003c\/strong\u003e\u003c\/span\u003e\u003cbr data-start=\"6693\" data-end=\"6696\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEach board is \u003cstrong data-start=\"6710\" data-end=\"6729\"\u003e2400mm x 1200mm\u003c\/strong\u003e and covers \u003cstrong data-start=\"6741\" data-end=\"6751\"\u003e2.88m²\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"6754\" data-end=\"6876\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"6754\" data-end=\"6789\"\u003eWhat thicknesses are available?\u003c\/strong\u003e\u003c\/span\u003e\u003cbr data-start=\"6789\" data-end=\"6792\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThis product is available in \u003cstrong data-start=\"6821\" data-end=\"6875\"\u003e110mm, 120mm, 130mm, 140mm, 150mm, 165mm and 200mm\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"6878\" data-end=\"7051\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"6878\" data-end=\"6914\"\u003eIs XR4000 different from GA4000?\u003c\/strong\u003e\u003c\/span\u003e\u003cbr data-start=\"6914\" data-end=\"6917\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eYes. XR4000 covers the thicker PIR board range, generally from 110mm upwards. GA4000 usually covers lower general-purpose thicknesses.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"7053\" data-end=\"7254\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"7053\" data-end=\"7099\"\u003eIs Celotex XR4000 a soundproofing product?\u003c\/strong\u003e\u003c\/span\u003e\u003cbr data-start=\"7099\" data-end=\"7102\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eNo. It is primarily a thermal insulation board. It can be used alongside acoustic systems, but it should not be sold as a dedicated soundproofing board.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Soundproofing King","offers":[{"title":"110mm - 2400 x 1200mm - 2.88m² Board","offer_id":53630783816019,"sku":null,"price":40.95,"currency_code":"GBP","in_stock":true},{"title":"120mm - 2400 x 1200mm - 2.88m² Board","offer_id":53630783783251,"sku":null,"price":44.5,"currency_code":"GBP","in_stock":true},{"title":"130mm - 2400 x 1200mm - 2.88m² Board","offer_id":53630783750483,"sku":null,"price":46.95,"currency_code":"GBP","in_stock":true},{"title":"140mm - 2400 x 1200mm - 2.88m² Board","offer_id":54121719333203,"sku":null,"price":47.2,"currency_code":"GBP","in_stock":true},{"title":"150mm - 2400 x 1200mm - 2.88m² Board","offer_id":53630783717715,"sku":null,"price":59.5,"currency_code":"GBP","in_stock":true},{"title":"165mm - 2400 x 1200mm - 2.88m² Board","offer_id":53630783684947,"sku":null,"price":70.99,"currency_code":"GBP","in_stock":true},{"title":"200mm - 2400 x 1200mm - 2.88m² Board","offer_id":53630783652179,"sku":null,"price":85.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1012\/0360\/7891\/files\/download_23_615617cf-8f6f-469b-996f-07da3f4ef137.jpg?v=1775782693","url":"https:\/\/soundproofingking.co.uk\/products\/celotex-xr4000-pir-insulation-board","provider":"Soundproofing King","version":"1.0","type":"link"}