{"product_id":"u-s-gypsum-221851-u-s-gypsum-securock-1-2-in-x-4-ft-x-8-ft-glass-mat-roof-board","title":"U.S. Gypsum SecuRock 1\/2 in. x 4 ft. x 8 ft. Glass-Mat Roof Board","description":"\u003ch1\u003eU.S. Gypsum SecuRock 1\/2 in. x 4 ft. x 8 ft. Glass-Mat Roof Board\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eThis is a U.S. Gypsum SecuRock 1\/2 in. glass-mat faced gypsum roof board in a 4 ft. x 8 ft. sheet, sold per piece. The gypsum core with fiberglass face provides a dimensionally stable substrate for low-slope roof membranes. Pair it with compatible membranes and adhesives per the roofing assembly specification.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass-mat facing:\u003c\/strong\u003e Gypsum core with fiberglass face for moisture-resistant roof board performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad approvals:\u003c\/strong\u003e UL Classified and FM Approved for use in listed roofing assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eICC-ES report:\u003c\/strong\u003e Covered by ICC-ES ESR-3044 evaluation report.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire and moisture tested:\u003c\/strong\u003e Meets ASTM E84, ASTM E136, ASTM D3273 mold resistance and ASTM E96 water vapor transmission standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull sheet format:\u003c\/strong\u003e Supplied as a 1\/2 in. thick, 4 ft. x 8 ft. board per piece.\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\u003eU.S. Gypsum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e221851\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, 1\/2 in. x 4 ft. x 8 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSecuRock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGypsum with Fiberglass Face\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 ft. x 8 ft., 1\/2 in. thick\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApprovals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASTM D3273; ASTM E84; ASTM E136; ASTM C1177; ASTM E96; ICC ES-ESR 3044; UL Classified; FM Approved\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e64 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGlass-mat roof board substrate for low-slope roofing\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 sheet covers 32 sq ft (4 ft. x 8 ft.). Divide the deck area by 32 sq ft and add cut waste to determine sheet count.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eUse as a substrate under single-ply, modified bitumen or other low-slope membranes per the assembly specification. Compatible fasteners\/plates or approved adhesives are sold separately.\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 1\/2 in. x 4 ft. x 8 ft. SecuRock glass-mat roof board, sold per piece.\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. sheet covers 32 square feet before waste allowance.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How much does the sheet weigh?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The listed item weight is 64 lb per board.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Is the board mold resistant?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It meets ASTM D3273, the standard test for mold resistance of interior surfaces, along with ASTM C1177 glass-mat gypsum requirements.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What fastens this board to the deck?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Use the fasteners, plates or adhesives called out in the roof assembly specification; they are sold separately.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eSecuRock glass-mat roof board is the standard choice for cover board or thermal barrier work under single-ply and modified bitumen systems where an ICC-ES evaluated, UL\/FM listed board is specified. Follow the membrane manufacturer's fastening pattern and allow for board edge gapping per USG instructions. For assemblies requiring a non-combustible cement substrate instead, use SecuRock cement board.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eGypsum boards are heavy and fragile at edges; carry sheets on edge with a partner and use proper lifting technique to avoid back strain and breakage.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder U.S. Gypsum SecuRock 1\/2 in. glass-mat roof board for a stable, approved roof substrate.\u003c\/strong\u003e\u003c\/p\u003e","brand":"U.S. Gypsum","offers":[{"title":"Default Title","offer_id":53529527550319,"sku":"221851","price":41.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/391915_default_hero.jpg?v=1790350976","url":"https:\/\/superarbor.io\/products\/u-s-gypsum-221851-u-s-gypsum-securock-1-2-in-x-4-ft-x-8-ft-glass-mat-roof-board","provider":"Super Arbor","version":"1.0","type":"link"}