Prefabricated waterproofing membrane to form a waterproofing barrier for roofing, patching, gutter repair, and flashing; prefabricated waterproofing membrane to form a waterproofing barrier for roofing, patching, gutter repair, and flashing that includes a surface modified membrane; prefabricated waterproofing membrane to form a waterproofing barrier for roofing, patching, gutter repair, and flashing that includes a SBS surface modified membrane; prefabricated waterproofing membrane to form a...