{"product_id":"gaf-gaf4iso4-gaf-energyguard-4-in-4-ft-x-4-ft-grade-ii-20-psi-polyiso-roof-insulation-panel","title":"GAF EnergyGuard 4 in. 4 ft x 4 ft Grade-II (20 psi) Polyiso Roof Insulation Panel","description":"\u003ch1\u003eGAF EnergyGuard 4 in. 4 ft x 4 ft Grade-II (20 psi) Polyiso Roof Insulation Panel\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eThis is a GAF EnergyGuard 4 in. thick polyisocyanurate roof insulation panel measuring 4 ft x 4 ft, rated Grade-II (20 psi) under ASTM C1289 Type II. Each panel is a sell unit sold by the piece; a bundle contains 12 panels covering 192 sq ft. It pairs with GAF-approved low-slope roof systems including single-ply, mod bit and BUR assemblies.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum thermal value:\u003c\/strong\u003e A 4 in. thick polyiso core bonded to glass fiber reinforced cellulosic felt (GRF) facers delivers high thermal value per panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 psi compressive strength:\u003c\/strong\u003e Grade-II rating per ASTM C1289 Type II, Class 1 provides 20 psi compressive strength for commercial low-slope roofing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide system compatibility:\u003c\/strong\u003e Approved for use with modified bitumen, BUR and single-ply systems, including TPO and PVC in adhered, mechanically attached and induction welded applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy field cutting:\u003c\/strong\u003e Lightweight panels are easy to cut in the field, making handling and installation more efficient.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad approvals:\u003c\/strong\u003e FM Approved, UL Classified, Miami-Dade County Approved and Florida Building Code Approved.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSustainable content:\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 4 ft x 4 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 4 ft, 4 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\u003e4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompressive strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 psi (Grade-II)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASTM C1289, Type II (Class 1); 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\u003ePack quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 pieces per bundle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage per unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e192 sq ft per bundle (16 sq ft per panel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11.952 lb per panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCommercial low-slope roof insulation\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 16 sq ft; a full bundle of 12 panels covers 192 sq ft. Divide the roof area by 16 sq ft per panel to estimate panel count.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eApproved for modified bitumen, BUR and single-ply roof systems, including TPO and PVC in adhered, mechanically attached and induction welded systems. Membrane, adhesive and fastening components are sold separately; install per GAF specification.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What is included in one order?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One 4 ft x 4 ft, 4 in. thick polyiso insulation panel; panels ship 12 per bundle.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How many panels do I need?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Each panel covers 16 sq ft, so divide your roof area by 16 to estimate the panel count and allow for cuts.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What strength is this panel?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is Grade-II per ASTM C1289 Type II, Class 1, rated at 20 psi compressive strength.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Can it be used under TPO or PVC membranes?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, GAF lists compatibility with TPO and PVC in adhered, mechanically attached and induction welded single-ply systems, plus mod bit and BUR.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Is it approved in my region?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is FM Approved, UL Classified, Florida Building Code Approved and Miami-Dade County Approved; always confirm with local code requirements.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How heavy are the panels?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Each 4 in. panel weighs about 12 lb; plan for two-person handling on thicker panels.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eThe 4 in. thickness delivers substantial R-value in a single layer, useful for meeting energy codes on low-slope commercial roofs. Verify fastener length and deck capacity for thick panels, and stagger joints when layering with thinner boards. Confirm the attachment method against the GAF data sheet and pair with a GAF-approved cover board where UL Class A over combustible decks is required.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eHandle and cut panels with gloves and eye protection, and follow the manufacturer's installation instructions and local building code for attachment and fire-assembly requirements.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder GAF EnergyGuard 4 in. polyiso roof insulation today for maximum thermal value on low-slope roofs.\u003c\/strong\u003e\u003c\/p\u003e","brand":"GAF","offers":[{"title":"Default Title","offer_id":53521603035503,"sku":"GAF4ISO4","price":48.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/250082_default_hero.jpg?v=1790179995","url":"https:\/\/superarbor.io\/products\/gaf-gaf4iso4-gaf-energyguard-4-in-4-ft-x-4-ft-grade-ii-20-psi-polyiso-roof-insulation-panel","provider":"Super Arbor","version":"1.0","type":"link"}