{"product_id":"gaf-energyguard-iso-polyiso-rigid-insulation-board-2-5-in-x-4-ft-x-8-ft-sheet","title":"GAF EnergyGuard ISO Polyiso Rigid Insulation Board 2.5 in x 4 ft x 8 ft (Sheet)","description":"\u003ch2\u003eEnergyGuard ISO Polyiso Insulation Board (2.5 in, 4x8)\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eGAF EnergyGuard ISO is a rigid polyiso insulation board designed to deliver strong thermal performance in commercial roofing and other building envelope applications. The glass-fiber reinforced facers and polyisocyanurate foam core help create an efficient, durable insulation layer.\u003c\/strong\u003e\u003c\/p\u003e \u003chr\u003e \u003ch3\u003eKey Features:\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eHigh Thermal Performance:\u003c\/strong\u003e Polyiso foam core provides high thermal value for roofing insulation assemblies.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eDurable Facers:\u003c\/strong\u003e Glass fiber reinforced facers help support jobsite handling and roof system performance.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eStandard Sheet Size:\u003c\/strong\u003e 4 ft x 8 ft panels help cover large areas efficiently.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eThickness for Build-Up:\u003c\/strong\u003e 2.5 in thickness supports achieving higher insulation levels with fewer layers.\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eCommercial Roofing Ready:\u003c\/strong\u003e Intended for use as a roof insulation panel in commercial roofing systems.\u003c\/li\u003e \u003c\/ul\u003e \u003chr\u003e \u003ch3\u003eSpecifications Table:\u003c\/h3\u003e \u003ctable\u003e \u003cthead\u003e \u003ctr\u003e \u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e \u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eGAF\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eProduct line\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eEnergyGuard Iso\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eInsulation type\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003ePolyiso (polyisocyanurate) rigid board\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eThickness\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e2.5 in\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eSheet size\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e4 ft x 8 ft\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eUnit of measure\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eSheet\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eInsulation \u0026amp; Weatherproofing\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eSub-category\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eFlat \u0026amp; Fan Fold Rigid Insulation Boards\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eFacers (as described by manufacturer)\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eGlass fiber reinforced cellulosic felt facers (GRF)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eCore material (as described by manufacturer)\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003ePolyisocyanurate foam\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eR-value (listed on one retailer page)\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eR-15.3\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eCompressive strength (listed on one retailer page)\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e20 PSI\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003chr\u003e \u003ch3\u003eFrequently Asked Questions (FAQ):\u003c\/h3\u003e \u003cp\u003e\u003cstrong\u003eQ: What are the panel dimensions and thickness?\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eA:\u003c\/strong\u003e Each sheet is 4 ft x 8 ft and 2.5 inches thick.\u003c\/p\u003e \u003chr\u003e \u003cp\u003e\u003cstrong\u003eQ: What type of insulation is this?\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eA:\u003c\/strong\u003e It is a polyisocyanurate (polyiso) foam insulation board with glass-fiber reinforced facers.\u003c\/p\u003e \u003chr\u003e \u003cp\u003e\u003cstrong\u003eQ: Is the R-value known for this thickness?\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eA:\u003c\/strong\u003e One listing for the 2.5 in 4x8 board notes R-15.3 (verify against the specific product label\/documentation for your job submittal requirements).\u003c\/p\u003e \u003chr\u003e \u003cp\u003e\u003cstrong\u003eQ: Is this product intended for roofing?\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eA:\u003c\/strong\u003e Yes—EnergyGuard Polyiso Insulation is described as a roof insulation panel for commercial roofing applications.\u003c\/p\u003e \u003chr\u003e \u003cp\u003e\u003cstrong\u003eQ: Does it support green building programs?\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eA:\u003c\/strong\u003e GAF notes the product contributes to green building rating systems (see product sustainability documentation for details).\u003c\/p\u003e \u003chr\u003e \u003ch3\u003eA Quiet, Invisible Layer of Luxury\u003c\/h3\u003e \u003cp\u003eGreat design isn’t only what you see—it’s what you feel. This crisp, architectural 4' x 8' polyiso panel slips into the build like a tailored understructure, elevating comfort with serious thermal performance. Its clean, rigid form and reinforced facers bring a confidence that reads as precision behind the scenes. Consider it the essential foundation that makes a space feel effortlessly refined—season after season.\u003c\/p\u003e \u003chr\u003e \u003cp\u003e\u003cstrong\u003eChoose GAF EnergyGuard ISO to add high-performance insulation where it matters most—your roof and building envelope.\u003c\/strong\u003e\u003c\/p\u003e","brand":"GMC_Traffic","offers":[{"title":"Default Title","offer_id":55154292064547,"sku":"gmc16-01104","price":17.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/8730\/5507\/files\/9d1d64c973faa407.jpg?v=1779819100","url":"https:\/\/a2ztoyshop.us.com\/products\/gaf-energyguard-iso-polyiso-rigid-insulation-board-2-5-in-x-4-ft-x-8-ft-sheet","provider":"Grandview Hobbies","version":"1.0","type":"link"}