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.

Deck Flash Barrier
Decking Joist Tape

Deck Flash Barrier

When applied to deck joists, 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.

12-inch DECK FLASH BARRIER is a multipurpose tool for many niche decking and fencing jobs. When installed behind the ledger board, it self-seals around screws, bolts, and fasteners, preventing moisture infiltration in the structure adjacent to the deck. Installing DECK FLASH BARRIER over the ledger board creates a physical barrier, preventing wood rot caused by the accumulation of water against the lumber.

When installed around the base of a post, DECK FLASH BARRIER will prevent wood rot and decay, dramatically extending the life of your lumber.

When DECK FLASH BARRIER is placed between treated lumber and metal surfaces it creates a physical barrier that prevents the corrosion of metal caused by contact with the chemicals in treated lumber. 

DECK FLASH BARRIER is recommended for both treated and untreated lumber.

DECK FLASH BARRIER is available in 3" x 75' and 12" x 25' rolls.


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