DeckWise Joist Tape Self Adhesive Deck Flashing 3" x 75' 3" x 75' of Tape Malleable Polyethylene Waterproof Flashing Easily Apply to Deck Joists, Around Deck Support Posts and Over Ledgers Helps Create a Waterproof Seal That Prevents Decay "Super Grip" Rubberized Asphalt Adhesive