Self-adhering waterproofing material featuring a reflective aluminum surface. Multiple laminations of special aluminum foil, high-density polymer films and a thick layer of rubberized asphalt waterproofing compound. Easily installed by removing the release paper and pressing the aluminum membrane into place. Cut to fit using scissors or razor knife. Lightweight, stretches to allow for building movement, won't crack or dry out, impervious to fungus, algae or bacteria. Uses: Dormer and porch roofs, small commercial, farm buildings, mobile homes, patch asphalt roofs, repair metal surfaces. 36'' W. x 33-1/2' L. 100 sq. ft. per roll. No. 50036: Aluminum finish No. 50W36: White finish No. 50G36: Grey finish