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RH in Concrete for Wood Floor with Vapor Membrane

#2
Here's my take:

The poly won't matter if a failure occurs. They will test the slab and if it is above 90% you are screwed.

The better poly will do a better job of keeping MVE from the wood. But concrete that is very high in rH has a multitude of issues beyond moisture vapor. If moisture vapor was the problem, we'd have had it licked long ago!

Realistically though, yes a better poly will do wonders for you, although it may be a warranty battle, you probably will never have an issue. There are products better than poly available if you want stronger and tighter vapor retarders also....

But you know all this! Wink
JD Grafton
Concrete Answers for Flooring Problems
[email protected]
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RE: RH in Concrete for Wood Floor with Vapor Membrane - CC Solutions - 06-14-2012, 10:51 AM

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