PermaPly 28 - BUR Roofing Systems
Fiber glass-reinforced, asphalt-coated lightweight base sheet.
Material meets the requirements of ASTM D 4601, Type II
PermaPly 28 is designed for use as the first or base sheet in built up roofing or modified bitumen roof assemblies.
Lightweight: Exceptionally pliable, easy to handle and lays flat.
Asphalt Coating: Makes it suitable as an intermediate or ply felt in cold-applied built-up and modified bitumen roof assemblies.
Ideal for Mechanical Attachment: Use where mechanical attachment of the membrane to the roof substrate or deck is desired.
Fiber Glass Reinforcement Mat: Low moisture, excellent dimensional stability and resistance to rot make it an ideal replacement for organic base or ply sheets. Provides a solid dimensionally stable substrate for other roofing membrane components.
Laying Lines: Laying lines are imprinted on the top surface so the roofing mechanic can install the felt with the proper exposure and provide the correct number of plies.
Surfacing: Fine mineral parting agent.