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The Deck Store is Canada’s premier deck and outdoor living design, supply, and build company.
We are the largest volume dealer of decking and outdoor building materials in the Canadian market.

We are Your Outdoor Living Specialists! Trust us to help you create your ideal Outdoor Living Space.


CA$28.95 + HST

COPPERHEAD JOIST & BEAM TAPE is a flexible waterproof self adhered Butyl tape used to maximize the life expectancy of wooden deck structures by functioning as a moisture barrier cap on top of the joists, which helps prevent premature rot and decay. It also acts as a noise dampener for PVC decking.

  • Durable, high strength, flexible and UV resistant engineered film facer.
  • High temperature adhesive, thermal stable to 260°F(132°C), no drips, oozing or stains.
  • Ridged Black Polyethylene top surface is slip resistant and won’t show between deck boards.
  • Cold temperature install down to 25°F(-4°C) and rising.
  • Pressure sensitive adhesive forms a tight seal around deck fasteners.
  • Easy to remove silicone treated release liner.
  • Available in 1 5/8” for joists
  • UV Exposure rating up to 10 years
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Unleash the Power of Copperhead Joist Tape for Sturdy Decks

Superior Protection for Your Deck’s Foundation

Elevate the longevity of your deck with Copperhead Joist Tape, designed to provide unparalleled protection for the heart of your outdoor oasis. Crafted with precision and innovation, this tape acts as a formidable shield against moisture, ensuring your joists and beams resist decay, rot, and wear over time.

Say goodbye to worries about weather-related damage or unexpected water exposure. Our advanced adhesive technology forms an impermeable barrier, safeguarding your deck’s foundation and ensuring a durable, long-lasting structure. Invest in the future of your outdoor space with confidence.

Key Features:

  • Moisture Resistance: Advanced adhesive technology repels water, preventing decay.
  • Longevity: Extend the lifespan of your deck by shielding its critical components.
  • Durability: Withstand the elements and maintain structural integrity over time.
  • Aesthetic Enhancement: Elevate the visual appeal of your deck with a polished finish.
  • Seamless Integration: Designed to blend seamlessly into your deck’s design.
  • Versatility: Suitable for both new deck constructions and deck renovations.



Length / width per roll 75 ft (22.8m) /1 5/8”
Rolls widths available: 1 5/8” 1 5/8”- Up to 24 /box
Weight per square meter 626 GSM
Master box weight 31.26LBS



Length / width per roll 75 ft (22.8m) / 1 5/8”
Rolls widths available: 1 5/8” 1 5/8” 24/box
Tape Facer Slip resistant surface-Embossed ridged top surface
Release liner Silicone treated release liner
Fastener sealability per ASTM D1970 Pass
Permeability – ASTM E96 <0.05 Perms
Air Permability ASTM E2178 <0.001 l/s/m2
Minimum thickness – ASTM D1970 25 mils
Elongation: ASTM D1970 – MD/CD >300%
Low-Temperature Flexibility ASTM D1970 Pass
Adhesion to plywood @40°F(4.4°C)- ASTM D1970 75 lbf /ft |65 lbf /ft
Adhesion to metal @75°F(23°C) /40°F(4.4°C) – ASTM D1970 85 lbf /ft | 80 lbf /ft 70 lbf
Adhesion to plywood @75°F(23°C)- ASTM D1970 70 lbf /ft | 65 lbf /ft
Thermal stability – ASTM D1970 260° F (126.7°C)
Installation temperature 25°F (-4°C) and rising
Service Temperature -40°F to 270°F
Limited warranty 10 Years

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Use with FIBERON Composite & PVC decking

Additional information

Select Size

1-5/8" x 75', 3-1/4" x 75'


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