SBS Roofing Systems

DynaGrip® Cap

Johns Manville DynaGrip® Cap is a self-adhering elastomeric, modified bitumen sheet incorporating the features of a tough, 170 g/m2 non-woven polyester mat that is saturated and coated with a blend of SBS rubber and high quality asphalt. The polyester mat provides good tensile strength, toughness, puncture resistance and can accommodate stresses created by typical rooftop expansion and contraction forces. The covering layer of ceramic-coated roofing granules provides durability along with superior resistance to damage from weather and foot traffic. The modified asphalt is self-adhering and has an easy-to-peel, removable release plastic film on the bottom of the sheet and selvage.