{"product_id":"johns-manville-securock-glass-mat-roof-board-1-4-in-x-4-ft-x-8-ft","title":"Johns Manville SECUROCK Glass-Mat Roof Board 1\/4 in. x 4 ft. x 8 ft.","description":"\u003ch1\u003eJohns Manville SECUROCK Glass-Mat Roof Board 1\/4 in. x 4 ft. x 8 ft.\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eJM SECUROCK Glass-Mat is a 1\/4 in. thick, 4 ft. x 8 ft. gypsum cover board sheet sold per piece. It is used in commercial roofing as a gypsum board for cover board and substrate applications. Pair it with insulation and membrane layers per the roofing system specification.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass-mat faced:\u003c\/strong\u003e Glass-mat faced gypsum board designed for commercial roofing use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuarter-inch profile:\u003c\/strong\u003e 1\/4 in. thickness suits cover board and substrate layers in roof assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull sheet format:\u003c\/strong\u003e Supplied in 4 ft. x 8 ft. sheets for efficient layout on the roof.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCover board use:\u003c\/strong\u003e Listed under commercial roofing cover boards (gypsum board) category.\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\u003eJohns Manville\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 piece, 1\/4 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\u003eAvailable sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\/4 in. x 4 ft. x 8 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGlass-mat gypsum board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\/4 in. x 4 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\u003e1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCommercial roofing cover board \/ gypsum board\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\u003eEach 4 ft. x 8 ft. sheet covers 32 sq ft of roof area before lap or joint allowances; divide total roof area by 32 sq ft per sheet and add waste.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eUsed within commercial roofing assemblies as a cover board over insulation and beneath the membrane; insulation, membrane and fasteners are sold separately.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What is included in one sell unit?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One 1\/4 in. x 4 ft. x 8 ft. SECUROCK Glass-Mat sheet.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What is it used for?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is a gypsum cover board used in commercial roofing assemblies.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How much area does a sheet cover?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e A 4 ft. x 8 ft. sheet covers 32 square feet before cuts and waste.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How is it attached?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Follow the roofing system specification; cover boards are typically adhered or mechanically fastened with compatible fasteners.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What thickness is it?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This item is 1\/4 in. thick.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eThin glass-mat gypsum like this 1\/4 in. SECUROCK sheet is commonly used where a light separator or substrate layer is needed rather than a heavy-duty cover board. Keep sheets tight to adjacent boards and stagger joints, and store them flat and dry until installation. Confirm the specified board thickness and attachment pattern with the membrane manufacturer before substituting.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eHandle gypsum boards with care and use proper lifting technique; cut edges and dust require gloves, eye protection and a dust mask.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder JM SECUROCK Glass-Mat 1\/4 in. roof board for your commercial roof assembly.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Johns Manville","offers":[{"title":"Default Title","offer_id":53524449198447,"sku":"JMDSRG1448","price":28.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/JMDSRG1448_0.jpg?v=1790284215","url":"https:\/\/superarbor.io\/products\/johns-manville-securock-glass-mat-roof-board-1-4-in-x-4-ft-x-8-ft","provider":"Super Arbor","version":"1.0","type":"link"}