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Apply Flashing Tape for Moisture Protection

1:35
2:18
20.1K views

At 1:35 in

Building a Simple Deck

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What happens here

After the main joist structure is in place, the creator emphasizes an important step for durability. He states that if non-pressure-treated lumber were used (though he is using pressure-treated), flashing tape should be applied over the top of the floor joists. This tape acts as a barrier to prevent water from seeping into the wood, thereby protecting it from rot and extending the lifespan of the deck frame. Even with pressure-treated lumber, flashing tape can provide an additional layer of protection.

Goal: Protect joists from water intrusion, especially if not pressure-treated

Tools and materials

  • Flashing Tape — Creating a waterproof barrier over the top of the floor joists to prevent water intrusion and rot

What they say

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not crazy. If you find yourself building a nice deak like this, make sure you build it out pressuret treated lumber. But if you want to save some shekels and use non-pressuret treated lumber, you can run flashing tape over the top of the floor joist to keep the water from intruding into it. The hangers are on. Now we back screw the front. Don't worry, we're doing this together. Together. Together. Together. Now there's no leaving. You can't leave. Don't leave. What? You think you're better than me?

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