Help i found rot!
I'm in the process of replacing the deck boards and have found rot. The side joist of this second level, 30 year old deck is doubled with what looks like 1/2" plywood sandwiched in between. The plywood is seriously rotten. I have not yet found rot in the joists. What should I do? If I continue to lay the new decking, the rot will spread to the undersides of the new boards. But worse, won't this rotting plywood rot the joists? Is there a solution? Is joist rotting, when you have a rotten plywood 'starter' a quick or slow (10+ years) process? AUGH!
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