Mop Pro G is an SBS (Styrene-Butadiene-Styrene) modified bitumen roofing membrane reinforced with a polyester reinforcement that provides flexibility and dimensional stability as well as tear and puncture resistance. The proprietary SBS compound offers superb waterproofing and weathering physical properties. Mop Pro G is designed for use as cap sheet in multilayer low-slope assemblies. The membrane has a granular top surface in three color options and a sand bottom surface for hot asphalt or cold adhesive application methods.