PolyWall Rot Shield Joist Tape 4" x 100' - Waterproof Protection for Wood Framing - Perfect for Decks, Sheds & Outdoor Construction Projects

The deck is an extension of a home, a space to entertain, dine, lounge, and relax. All great reasons to make sure the deck is done right! When properly installed, Rot Shield Joist Tape protects a deck from damage caused by water which can accumulate under deck boards. Moisture can create an environment where mildew, mold, and fungus thrive. Protect your investment from these threats by incorporating Rot Shield Joist Tape into your project as a barrier between the ledger board, joists, and deck boards.

Guidelines are 1 ¼” from each edge for a smoother, cleaner installation, higher quality appearance, fewer adjustments, and fewer wrinkles. We recommend 1” overlap at seams for the best installation. Incorporating Rot Shield Improves the durability of deck structures and enhances the longevity of the deck. Rot Shield seals around fasteners prevent water intrusion and are UV stable, so they can be left exposed for up to 120 days.