SPAX Deck Joist and Beam Flashing Tape

Add up to ten years to your deck with one simple addition: SPAX Joist and Beam Tape.

The flexible, waterproof tape is specially engineered with advanced synthetic adhesive to seal off fasteners, joists and beams from moisture.

Our high-strength, durable barrier prevents premature wood rot while allowing joists to breathe, so that your foundation lasts as long as the deck. And with a UV-resistant engineered film facer, it’s the only deck tape with UV resistance up to 10 years.

Learn more: https://spax.us/products/accessories/...

SPAX Joist Tape is engineered to:

Compatible with most deck materials, including pressure treated wood and composite products

Protects deck substructure from rot and decay

Seals fasteners, preventing moisture penetration

Black to hide joists and drillable for ease of use

Moisture-resistant, slip and tear resistant

Materials warranty for a period of 10 years

Pliable—guaranteed not to crack, harden or shrink due to temperature

Sound dampening, reducing board squeaks