{"product_id":"elevate-w841113504-elevate-iso-95-gl-grade-ii-20-psi-polyiso-roof-insulation-board-3-5-in-x-4-ft-x-4-ft","title":"Elevate ISO 95+ GL Grade-II (20 psi) Polyiso Roof Insulation Board, 3.5 in. x 4 ft. x 4 ft.","description":"\u003ch1\u003eElevate ISO 95+ GL Grade-II (20 psi) Polyiso Roof Insulation Board, 3.5 in. x 4 ft. x 4 ft.\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eThis Elevate ISO 95+ GL Grade-II polyisocyanurate roof insulation board measures 3.5 in. thick, 4 ft. x 4 ft., and carries a 20 psi Grade-II compressive rating. The closed-cell polyiso core is laminated to glass-reinforced mat facers on both faces. Sold per piece; order 9 boards per square (100 sq ft).\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum R-value:\u003c\/strong\u003e Polyiso delivers the highest R-value per inch of common rigid insulation systems, a smart investment for the building.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThick single layer:\u003c\/strong\u003e At 3.5 in. thick, fewer layers may be needed to reach design R-value compared with thinner boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade-II 20 psi:\u003c\/strong\u003e Grade-II compressive strength rated at 20 psi for commercial low-slope roof assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass-reinforced facers:\u003c\/strong\u003e A closed-cell polyiso foam core is laminated to a glass reinforced mat facer on both major surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal stability:\u003c\/strong\u003e ISOGARD polyiso meets both ASTM C1289 required and recommended thermal performance values.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOdor-free blowing agent:\u003c\/strong\u003e Uses an HCFC-free, EPA accepted blowing agent that does not contribute to ozone depletion (ODP-free).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidely certified:\u003c\/strong\u003e ASTM C1289 Type II Class 1, FM Approved, UL Classified, and Miami-Dade County Approved.\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\u003eElevate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eW841113504\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 board, 3.5 in. x 4 ft. x 4 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eISO 95+ GL (ISOGARD GL) flat polyiso roof insulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProfile \/ style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlat board, glass-reinforced mat facers both sides\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGray\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 x 3.5 in. thick\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\u003e16 sq ft per board\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, closed cell, glass reinforced mat facer\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\u003eApplicable standards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASTM C1289, Type II, Class 1; CAN\/ULC-S704, Type 1, Class 3; CCMC 13274-L; FM Approved; ISO 9001 Registered Facility; LEED; Miami Dade County Approved; PIMA Quality Mark; UL Classified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13 lb per board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlgae resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\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 in Elevate membrane and multi-layer assemblies\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 4 ft x 4 ft board covers 16 sq ft of roof deck. For one roofing square (100 sq ft), plan on 9 boards (144 sq ft) allowing for field cuts and staggered joints.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eDesigned for use in Elevate low-slope commercial roof systems under single-ply and other approved membranes, installed per Elevate specifications. Other thicknesses, tapered ISOGARD GL, and attachment adhesives or fasteners are sold separately.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: How many boards cover 100 sq ft?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Each 4 ft x 4 ft board covers 16 sq ft, so 9 boards give 144 sq ft, enough for one square with cutting waste.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How is a 3.5 in. board attached?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Install per Elevate specifications using approved low-rise adhesives or mechanical fasteners designed for thick polyiso; thick boards typically benefit from two-layer staggered installation.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the compressive rating?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Grade-II polyiso is rated 20 psi compressive strength under the ASTM C1289 Type II classification.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What facers are on the board?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e A glass-reinforced mat facer is laminated to both major surfaces of the closed-cell foam core.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Does it contain ozone-depleting blowing agents?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No. It uses an HCFC-free, EPA accepted blowing agent that does not contribute to ozone depletion (ODP-free).\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eUse 3.5 in. Grade-II where the design calls for a thick base layer of polyiso without stacking thin boards. Stagger board joints between layers, keep joints tight, and confirm attachment density against the project wind-uplift requirement. For code compliance, always use the LTTR\/aged R-value printed on the board label, not the nominal R-value.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eLift thick boards with care and wear gloves, eye protection and a dust mask when field-cutting polyiso.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder the Elevate ISO 95+ GL 3.5 in. polyiso roof insulation board for high R-value in fewer layers.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Elevate","offers":[{"title":"Default Title","offer_id":53529544229231,"sku":"W841113504","price":28.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/47472_default_hero.jpg?v=1790351252","url":"https:\/\/superarbor.io\/products\/elevate-w841113504-elevate-iso-95-gl-grade-ii-20-psi-polyiso-roof-insulation-board-3-5-in-x-4-ft-x-4-ft","provider":"Super Arbor","version":"1.0","type":"link"}