Polyglass®, a manufacturer of modified bitumen roofing and waterproofing membranes and roof coatings for low and steep-slope applications, has announced Modibond® G FR, an APP plastomeric granulated cap sheet for low-slope roofs. Featuring fire retardant additives, Modibond G FR is specially designed for heat welded applications. It is ideal for new roofing, reroofing, recover, and for flashing details. Modibond G FR can be applied directly over an acceptable substrate or as part of a multi-ply system. It is classified as an acceptable option in UL Class A assemblies for a fully adhered cap sheet on a combustible deck.
Modibond G FR incorporates a high-quality polyester mat, providing superior tear strength and puncture resistance. The quality APP compound and durable construction ensures long-term weathering performance. The top surface is granulated while the bottom surface has a factory applied burn-off film. With a proprietary blend of APP modified bitumen that allows for superior weathering, Modibond G FR is designed to withstand severe exposure to fire and fortify against increasingly destructive wildfire seasons.