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Deckwise Butyl Joist Tape
1-5/8" x 50 FT & 3-1/8" x 50 FT

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Self-sealing, waterproof flashing
Self-seals around fasteners to insulate deck joists from water and prevent wood rot and decay
Butyl tape can be installed in cooler temperatures, safe to use in temps as low as 25° F.
Can be applied to decking joists, over ledger boards, and around support posts to create a waterproof seal.
Tear resistant, durable and flexible.
Can be applied to dewy or non-kiln dried wood. However, it is always preferable to apply to clean, dry wood.
Available in 2 sizes, see photos for the difference in width.
Made in the USA!

Butyl Joist Tape, 50 ft Rolls

Size
Code
Price
Qty

1-5/8" x 50'
JTAPEB

Code: JTAPEB
Price: $24.95/ea
Quantity:

3-1/8" x 50'
JTAPEB3

Code: JTAPEB3
Price: $42.95/ea
Quantity:

Additional Information
Q&A

Application Instructions

✔ Single Joist Application

✔ Double Joist Application

Butyl Tape for Waterproofing Decking

Wood framing, posts, and joists will begin to rot and break down in approximately 8-10 years. Protect the wood with butyl to create a moisture-free barrier that will extend the life of your deck.
Butyl is also very easy to work with. It can be applied in cooler temperatures and can adhere to wood even in a damp environment
It is flexible and resilient. Perfect for long-term use and easy to use for repairs.

How to Protect Joists with Butyl Tape

Deckwise Butyl Joist Tape
1-5/8" x 50 FT & 3-1/8" x 50 FT

Application Instructions

Butyl Tape for Waterproofing Decking

SUGGESTED PRODUCTS

Reviews

Deckwise Butyl Joist Tape 1-5/8" x 50 FT & 3-1/8" x 50 FT

Application Instructions

Butyl Tape for Waterproofing Decking

Reviews

Deckwise Butyl Joist Tape
1-5/8" x 50 FT & 3-1/8" x 50 FT