{"product_id":"tri-built-ac2-pl-004-tri-built-1-in-x-4-ft-x-8-ft-iso-ii-grf-polyiso-roof-insulation-board","title":"TRI-BUILT 1 in. x 4 ft. x 8 ft. ISO II GRF Polyiso Roof Insulation Board","description":"\u003ch1\u003eTRI-BUILT 1 in. x 4 ft. x 8 ft. ISO II GRF Polyiso Roof Insulation Board\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eThis TRI-BUILT ISO II GRF roof insulation board is a 1-inch-thick, 4 ft. x 8 ft. polyisocyanurate panel for low-slope roof assemblies, ideal as a base layer or thin lift. One board covers 32 sq ft and is sold per piece.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 in. thickness:\u003c\/strong\u003e One-inch panel suits base layers or thin insulation lifts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 ft. x 8 ft. board:\u003c\/strong\u003e Standard 32 sq ft board for efficient coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGRF facer:\u003c\/strong\u003e Glass-reinforced facer in the ISO II line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolyiso core:\u003c\/strong\u003e Polyisocyanurate foam insulation for low-slope roofing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight handling:\u003c\/strong\u003e Approximately 7.84 lb per board for easy job-site handling.\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\u003eTRI-BUILT\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_PL_004\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, 1 in. x 4 ft. x 8 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 II GRF Roof Insulation\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\u003eCoverage per unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 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 insulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.84 lb\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 1 in. x 4 ft. x 8 ft. board covers 32 sq ft. Divide the roof area by 32 and allow for cuts and waste; boards are also counted by the square (100 sq ft).\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eUsed in low-slope roof assemblies beneath approved membranes, often layered with thicker ISO boards. Attachment plates and adhesives are sold separately; install per the membrane manufacturer's requirements.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What size is each board?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Each board is 4 ft. x 8 ft. and 1 inch thick, covering 32 sq ft.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How many boards do I need?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Divide the roof area by 32 sq ft per board and allow for waste.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What is GRF?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e GRF refers to the glass-reinforced facer on this ISO II board.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How much does a board weigh?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Approximately 7.84 lb per 1-inch board.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Can it be layered with thicker boards?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, thinner boards are commonly used as base or intermediate layers in multi-layer assemblies.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eThin polyiso lifts are commonly used as base layers under thicker boards in staggered-joint, multi-layer assemblies to reduce thermal bridging. Verify attachment method and layer order with the membrane manufacturer and local code. Confirm the project's total R-value needs before selecting thickness.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eStore boards flat and dry and secure them against wind on the rooftop.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder the TRI-BUILT 1 in. ISO II GRF polyiso roof insulation board for your next low-slope roofing job.\u003c\/strong\u003e\u003c\/p\u003e","brand":"TRI-BUILT","offers":[{"title":"Default Title","offer_id":53529517293935,"sku":"AC2_PL_004","price":28.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/802656_default_hero.jpg?v=1790350742","url":"https:\/\/superarbor.io\/products\/tri-built-ac2-pl-004-tri-built-1-in-x-4-ft-x-8-ft-iso-ii-grf-polyiso-roof-insulation-board","provider":"Super Arbor","version":"1.0","type":"link"}