{"product_id":"atlas-ac2-003-atlas-acfoam-ii-1-in-x-4-ft-x-4-ft-polyiso-roof-insulation-board-grade-ii-20-psi","title":"Atlas ACFoam-II 1 in. x 4 ft. x 4 ft. Polyiso Roof Insulation Board, Grade-II (20 psi)","description":"\u003ch1\u003eAtlas ACFoam-II 1 in. x 4 ft. x 4 ft. Polyiso Roof Insulation Board, Grade-II (20 psi)\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eThis is Atlas ACFoam-II polyiso roof insulation, 1 in. thick, 4 ft. x 4 ft. panel, Grade-II (20 psi) flat board. Each panel covers 16 sq ft and is sold per piece. It is used as roof insulation under membrane and other low-slope coverings, alone or layered for higher R-value.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 in. polyiso board:\u003c\/strong\u003e 1 in. thick polyisocyanurate roof insulation panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 x 4 ft. panel:\u003c\/strong\u003e Each panel measures 4 ft. x 4 ft., covering 16 sq ft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 psi Grade II:\u003c\/strong\u003e Manufactured to ASTM C1289 Type II, Class 1, Grade 2 (20 psi).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-GWP foam:\u003c\/strong\u003e Made with CFC-free, HCFC-free and HFC-free blowing agents with zero ODP and negligible GWP.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecycled content:\u003c\/strong\u003e Contains between 52.9% and 27.6% recycled materials per the manufacturer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad approvals:\u003c\/strong\u003e FM 4450\/4470 approved, Miami-Dade County and Florida Product Approved, UL Greenguard Gold certified.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCode compliance:\u003c\/strong\u003e Meets ASTM C1289 and CAN\/ULC-S704; IBC Chapter 26 and NBC recognized.\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\u003eAtlas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC2_003\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, 1 in. x 4 ft. x 4 ft. (16 sq 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\u003eACFoam-II flat polyiso\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 in. x 4 ft. x 4 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompressive strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGrade 2 (20 psi) per ASTM C1289 Type II, Class 1\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 panel\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 (facers as manufactured)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApprovals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASTM C1289; CAN\/ULC-S704; CCMC No. 12464-L; UL 1256; UL 790 (ASTM E108); UL 263 (ASTM E119); UL 1897; FM 4450\/4470 Approved; Miami-Dade County Approved; Florida Product Approved; UL Greenguard Gold Certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFoam technology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCFC-free, HCFC-free, HFC-free blowing agents; zero ODP, negligible GWP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 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\u003eLow-slope roof insulation under membrane roof systems\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\u003eEach 4 ft. x 4 ft. panel covers 16 sq ft. Divide the roof area by 16 and add waste and taper requirements; layer multiple thicknesses or use thicker panels to reach the target R-value.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eDesigned for low-slope membrane roof assemblies; install over compatible decks and thermal barriers and beneath single-ply, modified bitumen or built-up membranes per the membrane manufacturer's requirements. Attachment fasteners, plates and cover boards are sold separately.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What are the panel dimensions?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e 1 in. thick, 4 ft. x 4 ft., covering 16 sq ft per panel.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What grade is this board?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Grade-II, 20 psi compressive strength per ASTM C1289 Type II, Class 1.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Is it environmentally specified?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It uses CFC-free, HCFC-free and HFC-free blowing agents with zero ODP and negligible GWP, and contains recycled material.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Is it FM approved?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, it is FM Standard 4450\/4470 approved and also Miami-Dade County and Florida Product Approved.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How many panels for 1,000 sq ft?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e About 63 panels (1,000 divided by 16 sq ft each), plus waste and cut pieces.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How much does one panel weigh?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The listed item weight is 5 lb.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eACFoam-II in 4 x 4 ft. panels is handy for small roofs, patch-ins and detailing where 4 x 8 boards are awkward. Check your spec for Grade 2 (20 psi) versus Grade 3 (25 psi) and the required R-value before ordering—1 in. panels are often layered. Follow Atlas's recommendation to confirm local code, FM Global, Miami-Dade and membrane manufacturer requirements before installation.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eConsult local building codes, contract documents, the membrane manufacturer and a design professional for installation guidelines, and follow the roofing system's fire and wind uplift requirements.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder Atlas ACFoam-II 1 in. x 4 ft. x 4 ft. polyiso roof insulation for your low-slope roof assembly.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":53529541247343,"sku":"AC2_003","price":14.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/13753_default_hero.jpg?v=1790351224","url":"https:\/\/superarbor.io\/products\/atlas-ac2-003-atlas-acfoam-ii-1-in-x-4-ft-x-4-ft-polyiso-roof-insulation-board-grade-ii-20-psi","provider":"Super Arbor","version":"1.0","type":"link"}