I had old but dry joists that were in great shape. So I plugged the old nail holes and any cracks in the wood and then installed this joist tape. It worked great. The glue is so thick and tacky that I believe it holds in moisture and also seals in new nails/screws going into the joists. The project required 5 rolls of tape so the cost of the tape was reasonable to protect the joists for another long period.
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