About RUBEROID® HW 25 Smooth Membrane
RUBEROID® HW 25 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 for up to 20 years1
- Available as a smooth surface
1See applicable warranty or guarantee for complete coverage and restrictions.
Features & benefits
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Lightweight
Installed roof designs weigh less than two pounds per square foot -
Certified
RUBEROID® HW 25 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
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.
Membrane Base & Cap Sheet Surfacing Options
Asphaltic base and cap sheets come in a wide range of surfacing options — including silica, talcum powder, polyolefin burn-off film, standard and bright white granules, embossed aluminum film, and more — to help accommodate your installation methods and meet your durability and reflectivity expectations.
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.
Real projects featuring asphaltic solutions
The Mosaic project involved the 2007 renovation of the former Fidelity Union Bank and Insurance complex, two vacant downtown Dallas office towers. Mosaic is one of Dallas’ most striking high-rise residential communities.
Customize your system package
Already have a good idea of what materials you’re using? Take this express lane to details, data sheets, safety data sheets, guide specifications and more. Start by selecting your system below, then on the next page you can customize your system to include only the products and documents you’re looking for.
Commercial roofing products: solutions for every roofing need
From single-ply membranes to full system solutions, and state-of-the-art digital services to hands-on training. GAF offers the range of durable, easy-to-use products and services you need to succeed.
Resources for every professional
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