Wise Wrap Deck Joist Tape from Deck Wise

WiseWrap JoistTape by Deckwise is a malleable polyethylene waterproof tape, based upon a rubberized asphalt mastic adhesive. Specs are 3″ wide by 75′ feet long, 35-40 mil thick. Applications included the obvious deck joist. However, it can also product your support posts and ledger boards. WiseWrap Joist Tape creates a waterproof seal that will insure your framing lasts long like your Ipe decking. It keeps moisture and water away from your wood protecting them from Rot. Remember, when you penetrate your framing with screws or nails, that provides an entry for water. WiseWrap Joist Tape helps you improve the odds in your favor. Keep your Ipe deck for decades not worrying about the framing beneath.


  • Two adhesives, rubberized asphalt and acrylic
  • Helps prevent corrosion when placed between treated lumber (ACQ, CA-B, ACZA)and steel or aluminum
  • Self Sealing around deck screws
  • 75’ x 3” wide



  • Cut deck joist barrier tape to the proper length
  • center over the joist
  • Remove the backer and press in place
  • Firmly wrap and fold the tape over both edge sides of the joist
  • To maximize tape adhesion, roll with a hand roller