{"product_id":"gaf-gaf1iso-gaf-energyguard-1-in-x-4-ft-x-8-ft-grade-ii-20-psi-polyiso-roof-insulation-panel","title":"GAF EnergyGuard 1 in. x 4 ft. x 8 ft. Grade-II (20 psi) Polyiso Roof Insulation Panel","description":"\u003ch1\u003eGAF EnergyGuard 1 in. x 4 ft. x 8 ft. Grade-II (20 psi) Polyiso Roof Insulation Panel\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eThis is a GAF EnergyGuard 1 in. polyisocyanurate roof insulation panel, 4 ft x 8 ft, Grade-II (20 psi) with glass fiber reinforced cellulosic felt facers bonded to a polyiso foam core. Each panel provides 32 sq ft of coverage and ships as a single piece. It pairs with GAF single-ply, mod bit and BUR roof systems, including tapered designs.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh thermal value:\u003c\/strong\u003e Polyisocyanurate foam core with glass fiber reinforced cellulosic felt facers delivers high thermal efficiency for low-slope roofs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 psi compressive strength:\u003c\/strong\u003e ASTM C1289 Type II, Class 1 Grade 2 rating provides 20 psi compressive strength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem approvals:\u003c\/strong\u003e Approved for use in mod bit, BUR and single-ply systems with FM 4450\/4470 and UL listings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMembrane compatible:\u003c\/strong\u003e Compatible with TPO and PVC membranes in adhered, mechanically attached and induction welded systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy handling:\u003c\/strong\u003e Lightweight panels are easy to cut in the field for faster installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTaper-ready design:\u003c\/strong\u003e Suitable for tapered design systems that help drive water to drains and reduce ponding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreen building credit:\u003c\/strong\u003e Green Circle Certified for recycled content and contributes to green building rating systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eSpecifications Table:\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGAF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSell unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 panel, 4 ft x 8 ft x 1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEnergyGuard Polyiso Roof Insulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolyisocyanurate foam core with glass fiber reinforced cellulosic felt (GRF) facers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 ft x 8 ft, 1 in. thick\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrade \/ compressive strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGrade-II, 20 psi (ASTM C1289 Type II, Class 1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage per panel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage per bundle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1536 sq ft (48 panels per bundle)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 panel per piece; 48 pieces per bundle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplicable standards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASTM C1289, ASTM D1621, ASTM D2126, ASTM C209, ASTM E96, ASTM E84\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApprovals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFM Approved; UL Classified; Florida Building Code Approved; Miami-Dade County Approved; PIMA Quality Mark\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem approval\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMod Bit, BUR, single-ply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8.288 lb per panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eCoverage \u0026amp; How Much You Need:\u003c\/h2\u003e\u003cp\u003eOne panel covers 32 sq ft (4 ft x 8 ft). Bundles of 48 pieces cover 1536 sq ft, so a 1,000 sq ft roof area needs roughly 32 panels. In tapered systems, panel count and slope layout should follow a tapered design plan.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eCompatible with GAF single-ply (TPO and PVC), modified bitumen and BUR roof systems in adhered, mechanically attached and induction welded applications. Membrane, adhesives and fasteners are sold separately; a cover board is required for UL Class A over combustible decks.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What is included in this order?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One 1 in. thick, 4 ft x 8 ft EnergyGuard Grade-II (20 psi) polyiso insulation panel. Bundles ship 48 pieces covering 1536 sq ft.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How much area does one panel cover?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Each panel covers 32 sq ft; a full 48-piece bundle covers 1536 sq ft.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Which membrane systems is it compatible with?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is approved for mod bit, BUR and single-ply systems, and works with TPO and PVC in adhered, mechanically attached and induction welded assemblies.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the compressive strength?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This panel is ASTM C1289 Type II, Class 1 Grade 2, rated at 20 psi.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Is a cover board required?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e For UL Class A over combustible decks, a cover board is required per GAF's listing notes.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How many panels do I need per square?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One roofing square (100 sq ft) requires just over 3 panels, so plan about 32 panels per 1,000 sq ft.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eThe 1 in. panel is a common base layer or recovery board supplement where total assembly thickness is limited by edge details or height constraints. Use it as a lower lift with a thicker top layer to meet target R-value while keeping seams staggered. For roofs with ponding issues, combine flat panels like this with EnergyGuard tapered panels or crickets to establish positive drainage.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eInstall per GAF's instructions and local building code, and use fall protection when working on low-slope roofs.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder the GAF EnergyGuard 1 in. polyiso roof insulation panel for your next low-slope roofing project.\u003c\/strong\u003e\u003c\/p\u003e","brand":"GAF","offers":[{"title":"Default Title","offer_id":53521602871663,"sku":"GAF1ISO","price":31.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/21639_default_hero.jpg?v=1790179981","url":"https:\/\/superarbor.io\/products\/gaf-gaf1iso-gaf-energyguard-1-in-x-4-ft-x-8-ft-grade-ii-20-psi-polyiso-roof-insulation-panel","provider":"Super Arbor","version":"1.0","type":"link"}