APP 170 Cool is a heavier grade, smooth-surfaced APP modified bitumen roofing membrane designed to be installed with Elevate All-Purpose MB Cold Adhesive. It consists of select asphalt, modified with atactic polypropylene, and strengthened with a fiber glass reinforced polyester nonwoven mat [190 g/m² (3.9 lb/100 ft²)] made with 100 % recycled PET fibers. The combination results in a flexible and durable material that exceeds the performance requirements. APP 170 Cool is a membrane that is strong and stable, and resistant to natural forces and other factors on the roof-top. It is ideal for both new construction and re-roofing applications as a base ply, cap sheet, or as a flashing sheet in single or multi-ply APP applications.