{"product_id":"johns-manville-enrgy-3-tapered-polyiso-insulation-board-1-2-in-q-taper-4-ft-x-4-ft","title":"Johns Manville ENRGY 3 Tapered Polyiso Insulation Board 1\/2 in. Q Taper 4 ft. x 4 ft.","description":"\u003ch1\u003eJohns Manville ENRGY 3 Tapered Polyiso Insulation Board 1\/2 in. Q Taper 4 ft. x 4 ft.\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eThis is Johns Manville ENRGY 3 tapered polyisocyanurate insulation board, a 1\/2 inch Q taper panel in a 4 ft. x 4 ft. sheet, gray. Each order unit is one sheet covering a 0.5 inch to 2.5 inch thickness range across the taper. Use it to build slope in low-slope roof assemblies before cover board and membrane.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapered for slope:\u003c\/strong\u003e The 1\/2 in. Q taper ranges from 0.5 in. to 2.5 in. thickness across the panel to create positive roof drainage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolyiso core:\u003c\/strong\u003e Rigid polyisocyanurate foam insulation board for low-slope roof assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 ft. x 4 ft. panel:\u003c\/strong\u003e Ships as a 4 ft. x 4 ft. tapered sheet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGray board:\u003c\/strong\u003e The listed panel is gray.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eENRGY 3 series:\u003c\/strong\u003e Part of the Johns Manville ENRGY 3 tapered insulation line.\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 sheet, 4 ft. x 4 ft., 1\/2 in. Q taper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJohns Manville ENRGY 3 Tapered Polyiso Insulation Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable colors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGray\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\/2 in. Q taper, 4 ft. x 4 ft. (0.5 in. to 2.5 in. thickness range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolyisocyanurate foam\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 4 ft. sheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5 in. to 2.5 in. (1\/2 in. Q taper)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 ft. x 4 ft., 1\/2 in. Q taper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTapered rigid insulation to create slope in low-slope roofing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 sheet\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 4 ft. x 4 ft. sheet covers 16 square feet. Tapered systems are laid out per a slope plan, so map panels by quarter taper and slope direction before ordering; sheet count equals roof area divided by 16 sq. ft. plus waste.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eUsed in Johns Manville and compatible low-slope roof assemblies, typically layered under a cover board and membrane. Tapered layouts require a slope plan; moppers, fasteners and cover board are sold separately.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What taper is this panel?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The listed item is a 1\/2 inch Q taper, running from 0.5 inch to 2.5 inch thickness across the 4 ft. x 4 ft. panel.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What color is it?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The listed panel is gray.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How much area does one sheet cover?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One 4 ft. x 4 ft. sheet covers 16 square feet before waste.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What is a Q taper?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Taper designations describe the panel's slope and thickness range; confirm the exact slope per foot with the manufacturer's tapered layout plan.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Do I need cover board over it?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Tapered polyiso is typically covered with a cover board or directly by membrane per the roof assembly design; attachment materials are sold separately.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eTapered polyiso is how you build drainage into a dead-flat or under-sloped deck, and quarter taper panels like this 1\/2 in. Q are the backbone of most crickets and sump layouts. Order from a tapered layout plan so panel thicknesses and slopes land where the design intends, and keep the thinnest edge thickness consistent with the insulation code requirement. Pair with a cover board where membrane puncture resistance matters.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eVerify the finished assembly meets local insulation R-value and fire requirements, and handle large foam panels carefully on the roof to avoid falls and wind damage.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003ePlan your slope with Johns Manville ENRGY 3 1\/2 in. Q tapered polyiso insulation boards.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Johns Manville","offers":[{"title":"Default Title","offer_id":67583081742703,"sku":"58MVTIQ244","price":28.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/Insulation-SKU_2173056-primary.jpg?v=1790405632","url":"https:\/\/superarbor.io\/products\/johns-manville-enrgy-3-tapered-polyiso-insulation-board-1-2-in-q-taper-4-ft-x-4-ft","provider":"Super Arbor","version":"1.0","type":"link"}