RUBEROID® HW Granule FR Membrane Specs

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      Why RUBEROID® HW Granule FR Membrane?

      RUBEROID® HW Granule FR Membrane is a tough, fire-retarding 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 inherently fire-retardant polymer modified asphalt and surfaced with mineral granules.


      Benefits of RUBEROID® HW Granule FR Membrane include:
      • Typical system guarantees available for up to 15 years; select system constructions available with up to 20-year guarantee coverage1
      • Installed roof designs weigh less than 2 pounds per square foot
      • Specially formulated modified asphalt gives RUBEROID® HW Granule FR lasting performance
      • Specially formulated poly burn-off film allows for easy installation Heat welding allows for kettle-free operation
      • Polyester mat core allows it to resist splits and tears due to its pliability and elongation characteristics
      • RUBEROID® HW Granule FR is backed by GAF, a company with over 130 years in the roofing business
      • No coatings required for Class A ratings from UL and FMRC 
      1See applicable warranty or guarantee for complete coverage and restrictions.

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