Self-adhering waterproofing material to form a waterproofing barrier for roofing, patching, gutter repair, and flashing; prefabricated multi-layer water and weather-resistant sheet-type protective material formed of a polymer layer and asphalt layer to form a waterproofing barrier for roofing, patching, gutter repair, and flashing; prefabricated multi-layer water and weather-resistant sheet-type protective material formed of high-strength polymer layer and rubberized asphalt layer to form a w...