I have a 14' X 16' dirt/clay crawl space under my kitchen I can feel allot of moisture coming from the basement. its about 50 inches in height so I can crawl around in it. what should i do to seal up the ground to prevent the moisture coming from there. I was thinking of lay a 6mil roll of vapor barrier on the ground and walls and using buckets to put 2" of small gravel on top of the barrier.
any other ideas I can use?
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you've got it. use non-hardening caulk to seal the poly to the walls. i prefer the black poly to the "clear"; much tougher animal. no need for rock to hold it down. crawl spaces should be conditioned, ideally, btw.