Writing in JLC‘s sister publication, Professional Deck Builder, Mike Guertin explains how deck joists can be salvaged in many cases using a wide variety of cap options, including self-adhering membranes like Grace Vycor Deck Protector, DeckWise Joist Tape, and ProtectoWrap Deck Joist Tape, as well as staple-on joist cap strips like YorkWrap. Or you can make your own joist caps by cutting 3- to 4-inch-wide strips of #30 tar paper or synthetic roof underlayment and stapling the strips in place.
Saving Old Joists With Joist Caps
