Decking and Joist Tape

Whether you’re using treated, untreated, or synthetic decking, our Deck Flashing Tapes will greatly extend the life of your deck. Our products keep out moisture by sealing the joists of your deck, preventing rot, mold, and water damage.

Butyl Deck Flash Barrier
Decking Joist Tape

Butyl Deck Flash Barrier

When applied to deck joists, BUTYL DECK FLASH BARRIER creates a waterproof membrane that prevents wood rot and decay caused by the accumulation of moisture under the decking boards. Deck Flash Barrier self-seals around screws and nails blocking the primary pathway of water into lumber. Also, when placed between treated lumber and metal, BUTYL DECK FLASH BARRIER eliminates the potential for the corrosion of the metal surface. 

BUTYL DECK FLASH BARRIER is available in 1-5/8" x 50' and 3-1/8" x 50' rolls.


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