TITE-SEAL Self-adhesive waterproof flashing tape 4-in x 33-ft Rubberized Asphalt Roll FlashingA self adhesive waterproof flashing tape for windows and doors. It's composed of an aluminized polymer film and coated with a specially formulated rubberized asphalt adhesive. It forms an ideal seal keeping out moisture and wind driven rain, thereby preventing mold, and saving energy by stopping air leaks and eliminating drafts. Just cut to fit, remove release paper, and press in place for an instant waterproof seal. Self adhesive waterproof flashing