RUBEROID® HW Plus Granule FR Membrane is a premium, heavy-duty fire-retarding 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 Plus Granule FR Membrane include:
System guarantees are available for up to 20 years1
Installed roof designs weigh less than 2 pounds per square foot