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SBS Roofing Systems

DynaGrip Base SD/SA

Johns Manville DynaGrip® Base SD/SA is a self-adhering modified bitumen sheet incorporating the features of a medium weight fiber glass mat with a blend of SBS rubber and high quality asphalt. The modified asphalt is self-adhering and has an easy-to-peel, removable release plastic film on the bottom of the sheet and selvage. The top of the sheet is sand surfaced. DynaGrip Base SD/SA is designed for use in roofing systems where two or more plies of modified bitumen are desired.