Trex Protect Deck Beam Flashing Tape - 3-1/8" x 50'


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Quick and easy installation - Peel and stick butyl tape

Protects wood beams and joists against decay

Seals deck fasteners to prevent water infiltration

Improves holding power of screws

Can be installed on 12 in. or 16 in. joist spacing

Can be used on any joist material and any brand of decking


Trex Protect Beam Tape is a self-adhesive butyl tape that protects the wood beams against decay. This tape provides a barrier between treated wood and galvanized metal in hardware such as joist hangers. It seals holes around deck fasteners. This is important because it prevents water infiltration. The beam tape is similar to Trex Joist Tape; they are both great protectors. However, the 3-1/8” width Trex beam tape is better for a thicker project.

Deck Joists and beams are horizontal to the ground and provide a resting place for water to accumulate. Sometimes water will make its way to the joist via the decking gap or through screw holes. This provides an environment for deck rot. Many homeowners are installing composite, hardwood or PVC decking that has a long life span. It makes sense to Invest in the life of the deck sub-structure when building a deck.


Manufacturer Trex
Brand Trex
Sub Brand RainEscape
Installation Tools Required Utility Knife or Scissors
Package Quantity 1
Returnable Yes
Quick ID Q1237
UPC 851288003081

Weights and Dimensions

Weight (Pounds) 1.4
Length (Feet) 50
Width (Inches) 3.125


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