{"product_id":"rockwool-rxcb224-rockwool-comfortboard-80-r-8-4-rigid-stone-wool-insulation-board-2-in-x-24-in-x-48-in-40-sq-f","title":"ROCKWOOL Comfortboard 80 R-8.4 Rigid Stone Wool Insulation Board 2 in. x 24 in. x 48 in. (40 sq. ft., 5 boards)","description":"\u003cp\u003e\u003cstrong\u003eROCKWOOL Comfortboard 80 R-8.4 Rigid Stone Wool Insulation Board 2 in. x 24 in. x 48 in. (40 sq. ft., 5 boards)\u003c\/strong\u003e. Genuine ROCKWOOL product, model RXCB224. In stock at Partner Supply, Brooklyn, NY, with fast delivery across NY, NJ and CT.\u003c\/p\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe 2 in. Comfortboard 80 is a rigid stone wool board rated R-8.4, sold 5 boards to a bundle (40 sq. ft.). It goes on the exterior of a framed wall as continuous insulation, behind stucco and other claddings, or on basement and foundation walls and under slabs.\u003c\/p\u003e\n\u003cp\u003eLike the rest of the Comfortboard 80 line it is non-combustible, vapor permeable, water repellent and resistant to rot and mold. The 8 lb\/ft3 density gives it enough compressive strength (439 psf at 10%) to support furring and cladding fasteners. Cuts with a bread knife.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRigid stone wool board for exterior continuous insulation (non-structural sheathing), basement and foundation walls, and under slabs (manufacturer).\u003c\/li\u003e\n\u003cli\u003eR-4.2 per inch at 75 F (ASTM C518\/C177); actual density 8 lb\/ft3.\u003c\/li\u003e\n\u003cli\u003eNon-combustible; Flame Spread 0 \/ Smoke Developed 0 (ASTM E84 \/ UL 723); melting point approx. 2150 F (1177 C).\u003c\/li\u003e\n\u003cli\u003eVapor permeable (31 perm, ASTM E96) so wall assemblies can dry outward; 0.05% moisture sorption (ASTM C1104).\u003c\/li\u003e\n\u003cli\u003eCompressive strength 439 psf at 10% compression (ASTM C165).\u003c\/li\u003e\n\u003cli\u003eReduces thermal bridging through framing; NRC 0.9 sound absorption (ASTM C423).\u003c\/li\u003e\n\u003cli\u003eListed by the California State Fire Marshal BML; made from natural and recycled materials; CFC\/HCFC free.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eROCKWOOL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eModel \/ MPN\u003c\/th\u003e\n\u003ctd\u003eRXCB224\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eROCKWOOL item #\u003c\/th\u003e\n\u003ctd\u003e169067\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eMineral Wool Insulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eR-value\u003c\/th\u003e\n\u003ctd\u003eR-8.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSize\u003c\/th\u003e\n\u003ctd\u003e2 in. x 24 in. x 48 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eThickness\u003c\/th\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFacing\u003c\/th\u003e\n\u003ctd\u003eUnfaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCoverage\u003c\/th\u003e\n\u003ctd\u003e40 sq. ft. per bundle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePieces per package\u003c\/th\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFits\u003c\/th\u003e\n\u003ctd\u003eExterior continuous insulation over wood or steel framing; basement walls; under slabs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eQuick answers\u003c\/h2\u003e\u003ch3\u003eHow much does one bundle cover?\u003c\/h3\u003e\u003cp\u003eOne bundle covers 40 sq. ft. (5 pieces, 2 in. x 24 in. x 48 in.).\u003c\/p\u003e\u003ch3\u003eWhat framing does it fit?\u003c\/h3\u003e\u003cp\u003eExterior continuous insulation over wood or steel framing; basement walls; under slabs\u003c\/p\u003e\u003ch3\u003eIs it in stock and how fast can I get it?\u003c\/h3\u003e\u003cp\u003eUsually in stock at our Brooklyn yard. Order online or on WhatsApp at 718-406-4455 for pickup by appointment at 21 Ingraham Street, Brooklyn, NY 11206, or fast delivery in NY, NJ and CT.\u003c\/p\u003e","brand":"ROCKWOOL","offers":[{"title":"Default Title","offer_id":49398406742199,"sku":"RXCB224","price":116.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/2976\/1463\/files\/rockwool-rxcb224-rockwool-comfortboard-80-r-8-4-rigid-stone-wool-insul-1.jpg?v=1792366297","url":"https:\/\/partnersupplyusa.com\/products\/rockwool-rxcb224-rockwool-comfortboard-80-r-8-4-rigid-stone-wool-insulation-board-2-in-x-24-in-x-48-in-40-sq-f","provider":"Partner Supply USA","version":"1.0","type":"link"}