Meets the requirements of ASTM D 3909
GlasKap is used as a cap sheet in a variety of built up roofing systems.
Asphalt Coated, Fiber Glass Reinforcement Mat: Low moisture, excellent dimensional stability and resistance to rot make it an ideal replacement for organic cap sheets.
Ceramic-Coated Granules: Provide protection to the underlying bitumen and membrane, and have a low maintenance cost compared to roofs that use coatings.