{"product_id":"densdeck-primed-gypsum-roof-cover-board-4-ft-x-8-ft-sheet","title":"DensDeck Primed Gypsum Roof Cover Board, 4 ft. x 8 ft. Sheet","description":"\u003ch1\u003eDensDeck Primed Gypsum Roof Cover Board, 4 ft. x 8 ft. Sheet\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eDensDeck Primed is a gypsum roof cover board supplied as a 4 ft. x 8 ft. sheet, sold by the sheet. It is installed over roof insulation to provide a flat, durable substrate for membrane systems and comes in 1\/2 in. and 5\/8 in. thicknesses with a primed brown surface. Pair it with compatible roofing membranes and adhesives for a complete low-slope roof assembly.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGypsum core strength:\u003c\/strong\u003e The board uses a gypsum core engineered for use as a roof cover board under membrane roofing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimed surface:\u003c\/strong\u003e Each sheet has a primed brown face that prepares the board for adhesives and coatings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard sheet size:\u003c\/strong\u003e Sheets measure 4 ft. x 8 ft., a common size for efficient layout on roof decks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo thicknesses:\u003c\/strong\u003e Available in 1\/2 in. and 5\/8 in. thicknesses to match project requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold per sheet:\u003c\/strong\u003e Each order unit is one full sheet for easy quantity takeoffs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMembrane substrate:\u003c\/strong\u003e Creates a smooth, firm surface for bonding single-ply membranes and insulation layers.\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\u003eDensDeck\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 sheet, 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\u003eDensDeck\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable colors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e['Brown']\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e['1\/2 in. x 4 ft. x 8 ft.', '5\/8 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\u003eGypsum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish \/ texture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePrimed\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. sheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage per unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 sq. ft. per sheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoof cover board over insulation under roofing membranes\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 allowances for seams and waste. Estimate your roof area in square feet, divide by 32, and add a waste factor for cuts.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eDensDeck cover board is installed over approved roof insulation and beneath Johns Manville and other compatible single-ply or bituminous membrane systems. Fasteners, adhesives and insulation boards are sold separately.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What is included with my order?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One primed DensDeck gypsum cover board sheet, 4 ft. x 8 ft., in your chosen thickness.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How many sheets do I need?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Each sheet covers 32 sq. ft., so divide your roof area by 32 and add extra for cuts and waste.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Which thickness should I choose?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Both 1\/2 in. and 5\/8 in. sheets serve as cover board; choose the thickness specified in your roof assembly design.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Does it need priming before installation?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The sheets arrive primed, so they are ready for adhesive attachment and membrane installation.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Is it rated for specific wind or fire performance?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No ratings are stated in the available sources; consult the manufacturer's technical literature for tested assemblies.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eCover board is specified for its ability to protect foam insulation and improve membrane performance; select 5\/8 in. where assembly specs call for thicker board. Keep sheets dry on the job site and fully support joints over insulation. Follow the membrane manufacturer's attachment pattern for fasteners or adhesive.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFollow local building and fire codes and the membrane manufacturer's assembly requirements when installing roof cover board.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder DensDeck Primed gypsum roof cover board in 1\/2 in. or 5\/8 in. sheets for your next roofing project.\u003c\/strong\u003e\u003c\/p\u003e","brand":"DensDeck","offers":[{"title":"Manville 1\/2\" Densdeck Primed 4X8","offer_id":53531862729071,"sku":"62MVDD1248","price":42.67,"currency_code":"USD","in_stock":true},{"title":"Manville 5\/8\" Densdeck Primed 4X8","offer_id":53531862761839,"sku":"62MVDD5848","price":41.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/Insulation-SKU_2357602-primary.jpg?v=1790369445","url":"https:\/\/superarbor.io\/products\/densdeck-primed-gypsum-roof-cover-board-4-ft-x-8-ft-sheet","provider":"Super Arbor","version":"1.0","type":"link"}