{"product_id":"dow-thermax-sheathing-4-x-8-polyiso-all-sizes","title":"Dow Thermax Sheathing 4' x 8' Polyiso (All Sizes)","description":"\u003cp\u003eTHERMAX Sheathing is specially designed to have a Class A fire rating and can be used in a range of concealed and exposed applications, above and below grade. Because of the improved fire performance it is best suited for hourly rated assemblies. It has nominal 1.0 mil, smooth aluminum foil facers on both sides. \u003cspan\u003eTHERMAX Sheathing \u003c\/span\u003e\u003cspan\u003eeffectively reduces condensation for exceptional moisture protection.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"table-responsive\"\u003e\n\u003ctable class=\"table table-striped\" style=\"max-width: 1200px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness\u003c\/th\u003e\n\u003cth\u003eR-Value\u003c\/th\u003e\n\u003cth\u003eSq Ft\/Board\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.5\"\u003c\/td\u003e\n\u003ctd\u003eR3\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\"\u003c\/td\u003e\n\u003ctd\u003eR6\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1.5\"\u003c\/td\u003e\n\u003ctd\u003eR10\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003ctd\u003eR13\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2.5\"\u003c\/td\u003e\n\u003ctd\u003eR16\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\"\u003c\/td\u003e\n\u003ctd\u003eR18\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eUsed In\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eInsulate residential and commercial walls\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResidential closed (non-vented) crawl spaces\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInterior basement walls\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInterior walls of metal buildings\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eProduct Advantages\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCan be installed exposed to the interior without a thermal barrier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReinforcing facers, along with chemical modifications, contribute to fire resistance and dimensional stability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuited for hourly rated assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eOther Related Products\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eIf you're looking for other options for sheathing, here are some products that might meet your needs:\u003c\/p\u003e\n\u003cp\u003eRmax Ultra-Max HD High Density Coverboard 4' x 8' x 0.5\": This product is a high-density cover board designed to be used with low-slope roofs. It can also be used as a thermal barrier or coverboard over a variety of substrates.\u003c\/p\u003e\n\u003cp\u003eKooltherm K9 Internal Insulation Board (All Thicknesses): This insulation board is made from rigid thermoset phenolic insulation core with aluminum foil facings on both sides. It is designed for use in internal walls, floors, and roofs.\u003c\/p\u003e\n\u003cp\u003eKingspan Kooltherm K12 Internal Insulation Board (All Thicknesses): This is another internal insulation board option made by Kingspan. It has a fiber-free rigid thermoset phenolic insulation core with low emissivity foil facings on both sides.\u003c\/p\u003e\n\u003cp\u003eKingspan GreenGuard LG Type VI 40 PSI XPS Insulation Board 2' x 4' x 8': This product is a high-performance insulation board that has a closed-cell structure and a high compressive strength. It is made from extruded polystyrene (XPS) and is designed for use in applications such as foundation walls and roofs.\u003c\/p\u003e\n\u003cp\u003eKingspan GreenGuard LG Type VII 60 PSI XPS Insulation Board 2' x 2' x 8' and Kingspan GreenGuard LG Type VII 60 PSI XPS Insulation Board 2' x 4' x 8' (48 Boards): These are high-performance insulation boards made from extruded polystyrene (XPS) that are designed for use in demanding applications such as foundation walls and roofing systems. They have a closed-cell structure and a high compressive strength.\u003c\/p\u003e\n\u003cp\u003eOwens Corning Foamular NGX 250 4' x 8' x 1\" Insulation Board: This is a rigid foam insulation board made from a sustainable material. It has a high R-value and can be used in a variety of applications, including walls, roofs, and below-grade foundations.\u003c\/p\u003e\n\u003cp\u003eRmax Durasheath-3 Insulation Board 4' x 8': This is a rigid foam insulation board designed for use in walls and roofs\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is Dow Thermax Sheathing 4' x 8' Polyiso? \u003c\/strong\u003eDow Thermax Sheathing is a polyisocyanurate insulation panel designed for use in walls, roofs, and foundations. It provides high thermal efficiency and water resistance, making it an excellent choice for a variety of applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the panels? \u003c\/strong\u003eThe panels are 4 feet by 8 feet in size, with a thickness of either 1 inch, 1.5 inches, 2 inches, or 3 inches, depending on the specific product.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is Dow Thermax Sheathing installed? \u003c\/strong\u003eThe panels are typically installed over the structural framing of a building using mechanical fasteners, and then covered with a compatible air barrier system. Specific installation instructions may vary depending on the application.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs Dow Thermax Sheathing environmentally friendly? \u003c\/strong\u003eDow Thermax Sheathing is manufactured with a blowing agent that has zero ozone depletion potential and low global warming potential, making it an environmentally responsible choice for insulation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan Dow Thermax Sheathing be used in below-grade applications? \u003c\/strong\u003eYes, Dow Thermax Sheathing is suitable for use in below-grade applications, such as foundations, where it can help prevent moisture infiltration and improve energy efficiency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does Dow Thermax Sheathing compare to other insulation materials? \u003c\/strong\u003eDow Thermax Sheathing offers superior thermal efficiency and moisture resistance compared to many other types of insulation materials, making it a popular choice for commercial and residential applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs Dow Thermax Sheathing fire-resistant? \u003c\/strong\u003eDow Thermax Sheathing has a Class A fire rating, which is the highest rating for building materials. It has been tested to meet fire safety standards and can help improve the fire resistance of a building.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does Dow Thermax Sheathing last?\u003c\/strong\u003e Dow Thermax Sheathing is designed to last for the lifetime of the building in which it is installed. Its high-quality materials and construction ensure long-term performance and energy efficiency.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eCustomer Feedback\u003c\/h3\u003e\n\u003cdiv class=\"group w-full text-gray-800 dark:text-gray-100 border-b border-black\/10 dark:border-gray-900\/50 bg-gray-50 dark:bg-[#444654]\"\u003e\n\u003cdiv class=\"flex p-4 gap-4 text-base md:gap-6 md:max-w-2xl lg:max-w-xl xl:max-w-3xl md:py-6 lg:px-0 m-auto\"\u003e\n\u003cdiv class=\"relative flex flex-col w-[calc(100%-50px)] gap-1 md:gap-3 lg:w-[calc(100%-115px)]\"\u003e\n\u003cdiv class=\"flex flex-grow flex-col gap-3\"\u003e\n\u003cdiv class=\"min-h-[20px] flex flex-col items-start gap-4 whitespace-pre-wrap break-words\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert light\"\u003e\n\u003cp\u003e\u003cem\u003eThe Dow Thermax Sheathing 4' x 8' Polyiso is an excellent insulation board for commercial and residential construction projects. As one of the highest performing rigid insulation products on the market, it provides exceptional thermal resistance with an R-value of 6.0 per inch of thickness.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOne of the great advantages of this product is its versatility. The Dow Thermax Sheathing can be used on walls, roofs, and foundations, making it a great all-around solution for any construction project. It is also resistant to moisture, ensuring long-lasting performance and preventing mold growth.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAnother feature that stands out is its lightweight nature, which makes it easy to handle and install. The product is also easy to cut to size, which can save a considerable amount of time and effort on the job site.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOverall, the Dow Thermax Sheathing 4' x 8' Polyiso is an excellent choice for those looking for a high-performance insulation solution that is easy to work with and can be used in a wide range of applications. The product has received high praise from many customers, who have noted its durability and effectiveness. I would highly recommend this product to anyone looking for a reliable and versatile insulation solution.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Dow","offers":[{"title":"1\/2 in","offer_id":57070182695252,"sku":"PTS-1","price":32.31,"currency_code":"USD","in_stock":true},{"title":"1 in","offer_id":57070182728020,"sku":"PTS-2","price":44.53,"currency_code":"USD","in_stock":true},{"title":"1-1\/2 in","offer_id":57070182760788,"sku":"PTS-3","price":55.71,"currency_code":"USD","in_stock":true},{"title":"2 in","offer_id":57070182793556,"sku":"PTSA-4","price":63.38,"currency_code":"USD","in_stock":true},{"title":"2-1\/2 in","offer_id":57070182826324,"sku":"PTSA-2.5","price":100.82,"currency_code":"USD","in_stock":true},{"title":"3 in","offer_id":57070182859092,"sku":"PTSA-3","price":118.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/3825\/0324\/files\/dow-thermax-sheathing_2_790d8892-ec85-4d9d-9783-0fc545a4aa6a.jpg?v=1788876579","url":"https:\/\/starkepay.com\/products\/dow-thermax-sheathing-4-x-8-polyiso-all-sizes","provider":"Starke Pay","version":"1.0","type":"link"}