{"product_id":"tri-built-tb-316703-tri-built-1-5-in-x-4-ft-x-8-ft-polyiso-iso-rigid-roof-insulation-board","title":"TRI-BUILT 1.5 in. x 4 ft. x 8 ft. Polyiso ISO Rigid Roof Insulation Board","description":"\u003ch1\u003eTRI-BUILT 1.5 in. x 4 ft. x 8 ft. Polyiso ISO Rigid Roof Insulation Board\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eThis TRI-BUILT ISO rigid roof insulation board is a 1.5 in. thick polyisocyanurate panel in a 4 ft. x 8 ft. sheet, sold as one piece. It adds a rigid insulation layer to low-slope roof assemblies and pairs with cover boards, adhesives and membrane systems in the same build-up.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid polyiso core:\u003c\/strong\u003e Polyisocyanurate rigid foam board for low-slope roof insulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull 4x8 sheet:\u003c\/strong\u003e Each board measures 4 ft. x 8 ft., giving 32 sq ft of coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile 1.5 in. thickness:\u003c\/strong\u003e 1.5 in. thickness suits mid-layer lifts and standard insulation build-ups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight board:\u003c\/strong\u003e Weighs approximately 10 lb per board for easy handling and cutting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat, square edges:\u003c\/strong\u003e Rigid board format lays flat for clean, staggered joints between layers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuy by the piece:\u003c\/strong\u003e Sold per piece so order quantities match your layout exactly.\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\u003eTB-316703\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, 4 ft. x 8 ft. x 1.5 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\u003eTRI-BUILT ISO Rigid 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 (polyiso) rigid foam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 ft. x 8 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5 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\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10.02 lb per board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRigid roof insulation for low-slope roofing 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 board covers 32 sq ft of roof area. Estimate board count by dividing total area by 32 and allowing extra for cuts and perimeter fit.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eUsed as rigid insulation in low-slope roof assemblies alongside TRI-BUILT and other system components such as cover boards, adhesives and membranes. Attachment must follow the roofing system manufacturer's specifications.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What comes in one order?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One 1.5 in. thick, 4 ft. x 8 ft. polyiso insulation board.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How much does one board cover?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Each 4 ft. x 8 ft. board covers 32 sq ft before any cut waste.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How is it attached?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Typically mechanically fastened or adhered per the roofing system manufacturer's instructions and local code.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Can boards be layered?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, multiple lifts are commonly installed with joints staggered between layers.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How much does it weigh?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Approximately 10.02 lb per board.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Can it be cut to fit?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, score and cut with a utility knife or insulation saw on site.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eA 1.5 in. polyiso board is a workhorse mid-layer thickness for building up total insulation in multiple lifts. Keep boards dry and store flat until installed, and stagger board joints between layers to limit thermal bridging. Confirm fastener density and wind-uplift requirements with the membrane manufacturer before starting.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eWear gloves, eye protection and a dust mask when cutting rigid foam, and follow the roofing system manufacturer's installation instructions and local code.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder TRI-BUILT 1.5 in. ISO rigid roof insulation boards for a straightforward mid-layer insulation lift.\u003c\/strong\u003e\u003c\/p\u003e","brand":"TRI-BUILT","offers":[{"title":"Default Title","offer_id":53529505595759,"sku":"TB-316703","price":29.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/804341_default_hero.jpg?v=1790350498","url":"https:\/\/superarbor.io\/products\/tri-built-tb-316703-tri-built-1-5-in-x-4-ft-x-8-ft-polyiso-iso-rigid-roof-insulation-board","provider":"Super Arbor","version":"1.0","type":"link"}