{"product_id":"tri-built-tb-316960-tri-built-3-0-in-x-4-ft-x-8-ft-polyiso-iso-rigid-roof-insulation-board","title":"TRI-BUILT 3.0 in. x 4 ft. x 8 ft. Polyiso ISO Rigid Roof Insulation Board","description":"\u003ch1\u003eTRI-BUILT 3.0 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 3.0 in. thick polyisocyanurate panel in a 4 ft. x 8 ft. sheet, sold as one piece. Its added thickness helps reach target R-value in fewer layers and it pairs with cover boards, adhesives and membrane systems in the roof 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., providing 32 sq ft of area.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThick 3.0 in. panel:\u003c\/strong\u003e 3.0 in. thickness builds insulation value quickly in fewer lifts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManageable weight:\u003c\/strong\u003e Weighs approximately 16.5 lb per board despite the added thickness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat board format:\u003c\/strong\u003e Rigid sheet lays flat for clean joints and easy multi-layer staggering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-piece ordering:\u003c\/strong\u003e Sold per piece so quantities match the insulation layout.\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-316960\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 3.0 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\u003e3.0 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\u003e16.48 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 4 ft. x 8 ft. board covers 32 sq ft. Divide total roof area by 32 for a board count, then add for cuts and perimeter waste.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eInstalled as rigid insulation in low-slope roof assemblies with cover boards, insulation adhesives and membranes. Attachment pattern must follow the roofing system manufacturer's requirements and local code.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What is included in the sell unit?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One 3.0 in. thick, 4 ft. x 8 ft. polyiso insulation board.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How many boards for my roof?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Each board covers 32 sq ft; divide your area by 32 and add for cut waste.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How is this thickness installed?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Boards are mechanically fastened or adhered per the roofing system manufacturer's instructions and local code.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I combine it with thinner boards?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, thick base layers are often combined with thinner lifts to reach total design thickness.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How much does one board weigh?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Approximately 16.48 lb.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Is on-site cutting possible?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, score and cut rigid polyiso with a utility knife or insulation saw.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eChoosing a 3.0 in. polyiso board reduces the number of lifts needed to reach design R-value, saving labor on larger low-slope roofs. Stage boards flat, keep them dry, and stagger joints between layers. Verify fastener length and wind-uplift attachment with the membrane system manufacturer before installation.\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 3.0 in. ISO rigid roof insulation boards to reach your design thickness in fewer lifts.\u003c\/strong\u003e\u003c\/p\u003e","brand":"TRI-BUILT","offers":[{"title":"Default Title","offer_id":53529505661295,"sku":"TB-316960","price":53.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/804357_default_hero.jpg?v=1790350500","url":"https:\/\/superarbor.io\/products\/tri-built-tb-316960-tri-built-3-0-in-x-4-ft-x-8-ft-polyiso-iso-rigid-roof-insulation-board","provider":"Super Arbor","version":"1.0","type":"link"}