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Wood Subfloor over concrete not penetrating the vapor retarder

#2
Thanks for that Jim. I can't remember asking how to install a floating wood underlayment but it is an interesting read.

I would suspect a system where you would lay down a vapor retarder, say at minimum a 10mil poly, then put down 3/4" plywood and shot it right through the poly to the concrete would work. I would hypothesize a hole every 12" or so would have a negligible effect on vapor transmission through the wood.

Any idea how we could test this type of install to prove the theory?
JD Grafton
Concrete Answers for Flooring Problems
[email protected]
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RE: Wood Subfloor over concrete not penetrating the vapor retarder - CC Solutions - 03-25-2013, 06:38 AM

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