{"product_id":"johns-manville-app-plus-base-or-ply-sheet-39-3-8-in-x-49-ft-3-in-roll","title":"Johns Manville APP Plus Base or Ply Sheet, 39-3\/8 in. x 49 ft. 3 in. Roll","description":"\u003ch1\u003eJohns Manville APP Plus Base or Ply Sheet, 39-3\/8 in. x 49 ft. 3 in. Roll\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eJM APP Base Plus is an APP polymer-modified asphalt sheet used as a base or ply sheet in APP multi-ply roofing systems. This listing is one 39-3\/8 in. x 49 ft. 3 in. roll. The fiber glass-reinforced sheet installs quickly with cold adhesive or heat welding, thanks to its mineral parting agent surfacing on both sides.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable APP blend:\u003c\/strong\u003e The APP polymer and asphalt blend creates an extremely durable sheet with excellent weathering, flexibility, and dimensional stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiber glass mat:\u003c\/strong\u003e The fiber glass reinforcement mat provides tensile strength and withstands differential movement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLays flat:\u003c\/strong\u003e No thermal memory means less relaxation time and virtually wrinkle-free, fast installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual application:\u003c\/strong\u003e Fine mineral parting agent on both sides enables cold adhesive or heat-welded application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase or ply use:\u003c\/strong\u003e Designed to serve as either a base sheet or an intermediate ply in APP multi-ply systems.\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 roll, 39-3\/8 in. x 49 ft. 3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJM APP Base Plus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e39-3\/8 in. x 49 ft. 3 in. roll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAPP polymer-modified asphalt with fiber glass reinforcement mat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e39-3\/8 in. x 49 ft. 3 in.\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\u003eApprox. 133 sq. ft. per roll before laps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSurfacing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFine mineral parting agent on both sides\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication methods\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCold adhesive or heat welding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBase or ply sheet in APP multi-ply roofing systems\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 39-3\/8 in. x 49 ft. 3 in. roll yields roughly 133 sq. ft. before side and end laps. Plan roll counts from net roof area plus your specified lap allowances.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eUse as a base or ply sheet within JM APP multi-ply systems; cap sheets, adhesives, and flashing accessories are sold separately. Compatible with both cold adhesive and heat-welding application methods.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What is included?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One roll of JM APP Base Plus, 39-3\/8 in. x 49 ft. 3 in.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How much area does one roll cover?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Roughly 133 sq. ft. before laps; subtract lap area for net coverage.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What installation methods work?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Cold adhesive or heat welding, enabled by the mineral parting agent on both sides.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What reinforces the sheet?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e A fiber glass mat offering dimensional stability, tensile strength, and resistance to differential movement.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Where is it used in the system?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e As a base sheet or ply sheet in APP multi-ply roofing assemblies.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Does the sheet need to relax before adhering?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The fiber glass mat has no thermal memory, so less relaxation time is needed for quick installation.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eThis smaller APP roll is handy for detail work and smaller roof sections where a full 2-square roll is cumbersome. Confirm lap dimensions with the system specification, and store rolls flat and shaded to keep the sheet easy to unroll on install day.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFollow hot-work precautions and wear heat-resistant gloves when heat welding APP-modified sheets.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder the JM APP Plus base or ply sheet roll for your APP multi-ply roofing system.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Johns Manville","offers":[{"title":"Default Title","offer_id":53524446347631,"sku":"JM90012656","price":133.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/JM90012656_0.jpg?v=1790284183","url":"https:\/\/superarbor.io\/products\/johns-manville-app-plus-base-or-ply-sheet-39-3-8-in-x-49-ft-3-in-roll","provider":"Super Arbor","version":"1.0","type":"link"}