{"product_id":"johns-manville-basegrip-sd-sa-sbs-modified-bitumen-base-sheet-36-in-x-72-ft-roll","title":"Johns Manville BaseGrip SD\/SA SBS Modified Bitumen Base Sheet, 36 in. x 72 ft Roll","description":"\u003ch1\u003eJohns Manville BaseGrip SD\/SA SBS Modified Bitumen Base Sheet, 36 in. x 72 ft Roll\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eJohns Manville BaseGrip SD\/SA is an SBS-modified base sheet for roofs with two or more plies of modified bitumen, sold as one 36 in. x 72 ft roll. Its sand top surface includes a self-adhering side lap for faster installation, and it accepts a torchable cap sheet, hot asphalt or approved cold adhesive. The SBS rubber and asphalt blend delivers the elasticity to handle roof expansion and contraction.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSBS modified:\u003c\/strong\u003e An SBS (styrene-butadiene-styrene) synthetic rubber and high quality asphalt blend brings elasticity and flexibility to the sheet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-adhering lap:\u003c\/strong\u003e The sand top surface has a self-adhering side lap that speeds installation and simplifies use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible cap options:\u003c\/strong\u003e Allows installation of a torchable cap sheet, hot asphalt, or an approved cold adhesive, and is ideal with heat welding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLays flat:\u003c\/strong\u003e Elasticity and flexibility let the sheet lay flat, virtually eliminating wrinkles for fast, efficient application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandles movement:\u003c\/strong\u003e Elongation and recovery properties accommodate the continual expansion and contraction strains experienced on all roofs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase ply design:\u003c\/strong\u003e Designed as the base ply in multi-ply modified bitumen systems installed over an approved substrate.\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, 36 in. x 72 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\u003eJM BaseGrip SD\/SA SBS Base Sheet\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['Gray']\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['36 in. x 72 ft roll']\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e36 in. x 72 ft per roll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSBS-modified bitumen base sheet with sand top surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish \/ texture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSand top surface with self-adhering side lap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMulti-ply modified bitumen base ply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication methods\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTorchable cap sheet, hot asphalt, approved cold adhesive, 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 ply over an approved substrate in two-plus ply modified bitumen 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 36 in. x 72 ft roll covers up to 216 sq ft of roof at full width; subtract for side and end laps per the specified installation method to size your order.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eIntended as the base ply in Johns Manville modified bitumen systems with a compatible cap sheet applied by torch, hot asphalt, cold adhesive or heat welding. Install over an approved substrate and verify the full system assembly with the membrane manufacturer.\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 BaseGrip SD\/SA base sheet measuring 36 in. x 72 ft, gray.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How much does one roll cover?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e At 36 in. x 72 ft, one roll covers roughly 216 sq ft before lap deductions.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What cap sheets can go over it?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The sand top surface accepts a torchable cap sheet, hot asphalt, or an approved cold adhesive, and the product is ideal with heat welding.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Why choose an SBS base sheet?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The SBS rubber-asphalt blend adds elasticity and flexibility, so the sheet lays flat and handles expansion and contraction on the roof.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What substrate do I need?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It may be used as the base ply when installed over an approved substrate; confirm substrate approval with the system specification.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Is the side lap self-adhering?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the sand top surface includes a self-adhering side lap that aids faster installation.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eBaseGrip SD\/SA is a strong pick for multi-ply jobs where a self-adhering side lap saves labor on large fields. Stage rolls and let them relax before adhering to maximize flatness, and always check the substrate is approved for the specified attachment method. Match the cap sheet and adhesive or torch application to the system specification for a warrantable assembly.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eTorch application of modified bitumen is a fire hazard; follow fire-safe torching procedures, keep extinguishers on site and comply with local fire codes.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder JM BaseGrip SD\/SA SBS Base Sheet in 36 in. x 72 ft rolls for your next multi-ply modified bitumen roof.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Johns Manville","offers":[{"title":"Default Title","offer_id":53524441334127,"sku":"JMBG2","price":143.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/ProductImage_JohnsManville_JMBG2.jpg?v=1790284125","url":"https:\/\/superarbor.io\/products\/johns-manville-basegrip-sd-sa-sbs-modified-bitumen-base-sheet-36-in-x-72-ft-roll","provider":"Super Arbor","version":"1.0","type":"link"}