GAF Hybrid 3-Part Master Specification
Specifications
About RUBEROID® 20 Smooth Membrane
RUBEROID® 20 Smooth is a tough, resilient modified bitumen membrane manufactured to stringent GAF specifications. Its core is a strong, resilient non-woven glass mat that is coated with flexible, SBS polymer-modified asphalt. RUBEROID® 20 Smooth is backed by GAF, a company with over 130 years in the roofing business.
- System guarantees are available for up to 20 years1
1See applicable warranty or guarantee for complete coverage and restrictions.
Features & benefits
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Lightweight
Installed roof designs weigh less than three pounds per square foot -
Durable
Combines the strength of fiberglass reinforcement with the elongation characteristics of SBS-modified asphalt -
Special design
Available as a smooth surface
Product Documentation
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GAF SBS Modified Bitumen 3-Part Master Specification
Specifications
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Membrana lisa 20 Ruberoid SDS - 2079
Safety Data Sheets
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Ruberoid® 20 Smooth Membrane SDS - 2079
Safety Data Sheets
SBS, APP & BUR roof system product comparisons
Any discussion on asphaltic roofing will involve one or more of these three terms: SBS (Styrene-Butadiene-Styrene), APP (Atactic Polypropylene), and BUR (Built-up roofing). SBS and APP are polymers with unique characteristics, and membranes made with them are classified by ASTM numbers, types and grades. BUR is an assembly method in which multiple layers of felts are installed with hot asphalt in-between.
Asphaltic Membrane Installation Methods
One of the many reasons asphaltic roofing remains so popular is the wide variety of installation methods available. Depending on specifications, building characteristics and use cases, asphalt roofs can be hot-mopped, heat-welded/torch-applied, cold-applied (adhered), self-adhered, or mechanically attached. Find more about these techniques.
Asphaltic Commercial Roofing 101
Proven historical performance. Time tested durability. Asphaltic roofing products are a go-to material of choice for high end low-slope buildings. Learn more about asphaltic technologies and application techniques, as well as how to decide if asphaltic is the right roofing solution for your next project.
American jobs in American factories
This GAF product is proudly Made in the U.S.A. with domestic and imported materials. Learn more about how GAF helps to create American jobs and opportunities in the communities where we live and work.
Related Profiles
GAF Commercial Chairman’s Circle
The GAF Commercial Chairman’s Circle recognizes exceptional contractors in the commercial roofing industry. Each year, GAF invites contractor businesses to join this key partnership based on shared business commitment, reputation, loyalty, capability, and philanthropy.
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