Trex Protect Joist Tape and Beam Tape is a self-adhesive butyl tape designed to protect wooden joists and beams from moisture that can lead to rot, splitting and the loosening of deck screws and fasteners.
Trex Protect works on horizontal and vertical surfaces and is applied as a “cap” (vs. wrapping), which allows the wood to breathe. This butyl-based self-adhesive tape is superior to asphalt-based joist tape and beam tape because it won’t bleed, dry out as quickly, or curl up and hold water. As a result, it acts as a moisture barrier between wood and galvanized metal commonly used in construction hardware.
Trex Protect Joist and Beam Tape have two widths making it easy and convenient to apply to double beams and joists. Use 1-5/8” Joist Tape for joists and 3-1/8” Beam Tape on all double beams.
Trex Protect Ensures the Life of Your Deck
Today’s high-performance composite deck boards, like those of Trex, are warranted to last 25 years. But, research shows that the deck substructure can begin to spilt, rot and decay in as little as 8-10 years.
To protect an average size deck measuring 12’ x 24’ will require approximately 5 rolls of Trex Protect Joist Tape and one roll of Trex Protect Beam Tape. For less than a $100 investment, your deck substructure can last as long as the decking it supports.
To find out exactly how much Trex Protect Joist and Beam Tape your project requires, use our Materials Estimator.
Why Trex Protect?
Trex Protect effectively shields the tops of joists, rim joists, ledger boards and beams from moisture that can lead to wood rot and decay. It acts as a barrier between wood and galvanized metal commonly used in construction hardware such as joist hangars. Trex Protect guards against the rot and decay seen in decks below.
Trex Protect Joist Tape and Beam Tape seals deck fasteners and helps deck screws hold longer and stronger by preventing moisture penetration and defending against splitting that can result from seasonal freezing and thawing.