SPAX® Deck Joist Tape optimizes the life of the deck and ensures a long-lasting, professional installation by protecting fasteners and deck joists from water damage.  SPAX Deck Joist Tape works on all single board applications including joists, rim joists, ledger board, blocking, etc.  SPAX Deck Joist Tape is compatible with the majority of deck materials including pressure treated wood and composite products.