Modified Bitumen Roofing - Ruberoid SBS HW Granular


Formerly Ruberoid® SBS Heat-Weld Granule


RUBEROID® HW GRANULE is a tough, resilient SBS modified bitumen membrane that can be installed without the use of hot asphalt. Its core is a strong, resilient, non-woven polyester mat that is coated with an SBS polymer-modified asphalt and surfaced with mineral granules.


RUBEROID® HW GRANULE is designed for new roofing and recovering applications as well as the construction of flashings. RUBEROID® HW GRANULE is also an ideal product for repairs of built-up roofing membranes or other modified bitumen systems.


  • Typical system guarantees available for up to 15 years, select system constructions available with up to 20 year guarantee coverage

  • Lightweight — installed roof designs weigh less than 2 pounds per square foot

  • Durable — specially formulated modified asphalt gives RUBEROID® HW GRANULE lasting performance

  • Specially formulated poly burn-off film allows for easy installation

  • Heat welding allows for kettle free operation

  • Resilient — RUBEROID® HW GRANULE polyester mat core allows it to resist splits and tears due to its pliability and elongation characteristics

  • RUBEROID® HW GRANULE is backed by GAF, a company with over 100 years in the roofing business

  • Available with granular surface: black, white

Applicable Standards
Meets ASTM D6164, Type I, Grade G
ICC ESR#1274
Miami-Dade County Product Control Approval
State of Florida Product Approval
UL/ULc Listed

Product Specifications (Nominal)
Roll Size 1 square (107.7 gross sq. ft.) (10.0 m2)
Roll Length 32.6' (9.9 m)
Roll Width 39.625" (1.0 m)
Approx. Roll Weight 104.4 lbs (47.4 kg)
Product Thickness 0.164 (4.17 mm)

This product meets or exceeds the following ASTM D6164, Type I, Grade G, minimum requirements:

Property Test Method Value
Tensile Strength @ 0°F (min), lbf/in ASTM D5147 70
Elongation @ 0°F (min), % ASTM D5147 20
Low Temperature Flexibility (max), °F ASTM D5147 0
Tear Strength (min), lbf ASTM D5147 55
Dimensional Stability, (max) % ASTM D5147 1


All documents are U.S. English unless otherwise noted

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