About RUBEROID® HW 20 Smooth Membrane
RUBEROID® HW 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, polymer-modified asphalt.
- System guarantees are available
- Available as a smooth surface APP base sheet
Features and Benefits
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Certified
RUBEROID® HW 20 Smooth is backed by GAF, a company with over 130 years in the roofing business -
Durable
Combines the strength of fiberglass reinforcement with the elongation characteristics of SBS-modified asphalt
Product Documentation
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Ruberoid® HW 20, 25, 30 Smooth Membrane SDS - 2277
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.
When is an Asphaltic System the Right Choice?
With the wide variety of roofing technologies available, an asphaltic solution can be your best choice when you’re looking for multi-ply redundancy, enhanced durability, proven performance, high wind uplift and fire-rated assemblies, lower long term performance risk for issued guarantees, high compatibility with other roofing systems, and simplified owner maintenance. Architects and consultants often specify asphaltic solutions for applications such as K-12 schools, higher education low slope buildings, hospitals, data centers, and high-profile federal government projects.
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.
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