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Wood Subfloor over concrete not penetrating the vapor retarder
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04-29-2013, 05:26 PM #7
eaadams Concrete Moisture Expert *****
Status: Offline Posts:600 Threads:88 Joined:Jul 2010
RH testing is not the answer for joints. If anything it could be a good reason for CC testing. Somehow figure out the moisture profile of the slab and use that to establish the potential reverse curl and then use that as a basis for intalation windows.

Few people can get a good ASTM C157 test done pre-slab. Fewer still can get it done in a dry room not a humid room.

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