HW Plus Granule FR Membrane

HW Plus Granule FR Membrane

Why RUBEROID® HW Plus Granule FR Membrane?

Its core is a strong, resilient, non-woven polyester mat that is coated with an inherently fire-resistant polymer modified asphalt and surfaced with mineral granules. 


  • System guarantees are available for up to 20 years1
  • Installed roof designs weigh less than 2 pounds per square foot
  • Specially formulated modified asphalt gives RUBEROID® HW Plus Granule FR lasting performance.
  • Specially formulated poly burn-off film allows for easy installation
  • Heat-Welding allows for kettle-free operation
  • Its premium polyester mat core allows it to resist splits and tears due to its pliability and elongation characteristics.
  • Backed by GAF, a company with over 130 years in the roofing business
  • No coatings required for Class A ratings from UL and FMRC


  • RUBEROID® HW Plus Granule FR is designed for new roofing and re-covering applications as well as the construction of flashings.
  • RUBEROID® HW Plus Granule FR is also an ideal product for repairs of built-up roofing membranes or other modified bitumen systems.


1See applicable warranty or guarantee for complete coverage and restrictions.


Protect Your Investment

Find out about product warranties and options that may help protect your most valuable assets. 

  • System Pledge Roof Guarantee
  • Diamond Pledge NDL Roof Guarantee

Product Properties

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