{"product_id":"gaf-ruberoid-20-smooth-membrane-sbs-modified-bitumen-base-or-interply-membrane-black-39-37","title":"GAF RUBEROID 20 Smooth Membrane - SBS Modified Bitumen Base or Interply Membrane, Black 39.375 in. x 49 ft. 2 in. Roll","description":"\u003ch1\u003eGAF RUBEROID 20 Smooth Membrane - SBS Modified Bitumen Base or Interply Membrane, Black 39.375 in. x 49 ft. 2 in. Roll\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eGAF RUBEROID 20 Smooth Membrane is a tough, resilient SBS polymer-modified bitumen roofing membrane with a non-woven glass mat core, supplied in a black 39.375 in. x 49 ft. 2 in. roll. Designed for new roofing, re-cover and flashing construction, it serves as an ideal base or interply membrane in modified bitumen systems, including GAF Composite R.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSBS Modified Asphalt:\u003c\/strong\u003e A strong non-woven glass mat core coated with flexible, SBS polymer-modified asphalt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase or Interply:\u003c\/strong\u003e Ideal base or interply membrane in modified bitumen systems, including GAF Composite R.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew Roof and Re-Cover:\u003c\/strong\u003e Designed for new roofing and re-cover applications as well as flashing construction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20-Year Guarantees:\u003c\/strong\u003e System guarantees are available for up to 20 years.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Design:\u003c\/strong\u003e Installed roof designs weigh less than three pounds per square foot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGAF Specifications:\u003c\/strong\u003e Manufactured to stringent GAF specifications for consistent performance.\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\u003eGAF\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, 39.375 in. x 49 ft. 2 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\u003eGAF RUBEROID\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable colors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e39.375\" x 49' 2\" roll (1 item on this page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSBS polymer-modified bitumen over non-woven glass mat core\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e39.375 in. x 49 ft. 2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e49 ft. 2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e39.375 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInstalled roof designs weigh less than 3 lb per sq 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\u003eBase or interply membrane for new roofing, re-cover and flashing construction\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\u003eroll is approx. 135 sq ft before laps and wastage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eModified bitumen systems including GAF Composite R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSystem guarantees available for up to 20 years\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 roll measures 39.375 in. x 49 ft. 2 in., roughly 135 sq ft of material; actual coverage is reduced by side and end laps in multi-ply modified bitumen assemblies. Plan roll counts from roof area plus standard lap allowances.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003eIntended for use as a base or interply membrane in modified bitumen systems, including GAF Composite R. Cap sheets, adhesives or torch application materials for finishing plies are ordered separately per the chosen system.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What is included in one order?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One roll of GAF RUBEROID 20 Smooth Membrane, black, 39.375 in. x 49 ft. 2 in.\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 It is designed as a base or interply membrane in modified bitumen systems, including GAF Composite R.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the core made of?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e A strong, resilient non-woven glass mat coated with flexible SBS polymer-modified asphalt.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Is it heavy on the roof?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No, installed roof designs weigh less than three pounds per square foot.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Can guarantees be obtained?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, system guarantees are available for up to 20 years through the manufacturer's system requirements.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Can it be used for flashings?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, it is designed for use in the construction of flashings as well as new roofing and re-cover.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003eRUBEROID 20 Smooth is the workhorse base ply for commercial modified bitumen: the glass mat core gives dimensional stability while the SBS asphalt stays flexible in service. Use it under a granulated cap sheet or within GAF Composite R assemblies, and order guarantee-eligible components if a 20-year system guarantee is the project goal. Its low installed weight is useful on decks with load limits.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFollow the manufacturer's application instructions and OSHA hot-work or fall-protection requirements when installing modified bitumen membranes.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder GAF RUBEROID 20 Smooth Membrane for a proven base or interply in your modified bitumen system.\u003c\/strong\u003e\u003c\/p\u003e","brand":"GAF","offers":[{"title":"Default Title","offer_id":67583362040175,"sku":"GAFRM20SM","price":96.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/ProductImage_GAFRM20SM.jpg?v=1790406927","url":"https:\/\/superarbor.io\/products\/gaf-ruberoid-20-smooth-membrane-sbs-modified-bitumen-base-or-interply-membrane-black-39-37","provider":"Super Arbor","version":"1.0","type":"link"}