{"product_id":"1-in-x-4-ft-x-8-ft-gray-foam-board-insulation-gf1r","title":"1 in. x 4 ft. x 8 ft. Gray Foam Board Insulation","description":"\u003cp\u003eRigid foam board insulation in a standard sheet format, used as continuous insulation over framing, under slabs, and against foundation walls. The gray color is typical of graphite-enhanced expanded polystyrene, where graphite particles are added to the foam cell structure to reduce radiant heat transfer.\u003c\/p\u003e\n\u003cp\u003eRigid foam is cut with a utility knife or fine-tooth saw and fastened with cap nails, plastic-cap screws, or construction adhesive rated for use with foam. Boards are typically installed with joints staggered and taped or sealed to limit air movement through the assembly.\u003c\/p\u003e\n\u003cp\u003ePanels are lightweight and handled by one person, and unlike batt insulation they hold their shape and do not compress in the cavity or against masonry.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGray graphite-type rigid foam board panel\u003c\/li\u003e\n\u003cli\u003eClosed-cell rigid foam construction holds its shape and resists compression\u003c\/li\u003e\n\u003cli\u003eCuts cleanly with a utility knife or fine-tooth handsaw for field fitting\u003c\/li\u003e\n\u003cli\u003eLightweight enough for single-person handling and installation\u003c\/li\u003e\n\u003cli\u003eProvides continuous insulation across framing members to reduce thermal bridging\u003c\/li\u003e\n\u003cli\u003eJoints can be taped or sealed to limit air movement through the assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eContinuous exterior insulation over wall sheathing or framing\u003c\/li\u003e\n\u003cli\u003eFoundation and basement wall insulation, interior or exterior side\u003c\/li\u003e\n\u003cli\u003eUnder-slab and slab-edge insulation\u003c\/li\u003e\n\u003cli\u003eCrawl space wall and rim joist insulation\u003c\/li\u003e\n\u003cli\u003eInsulating furred-out masonry and concrete walls\u003c\/li\u003e\n\u003cli\u003eRoof deck and cathedral ceiling assemblies where rigid board is specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Rigid foam board insulation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Rigid foam panel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e Sheet \/ board\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold As:\u003c\/strong\u003e Each\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable class=\"product-specs\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eColor\u003c\/th\u003e\n\u003ctd\u003eGray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"ARCH Building Supply","offers":[{"title":"Default Title","offer_id":55048724644179,"sku":"GF1R","price":26.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1012\/7743\/4195\/files\/arch-placeholder-coming-soon_124e3219-a48b-4a03-8c0c-0e1c0d964f78.webp?v=1790259801","url":"https:\/\/arch-9365.myshopify.com\/es\/products\/1-in-x-4-ft-x-8-ft-gray-foam-board-insulation-gf1r","provider":"ARCH","version":"1.0","type":"link"}