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The standard now is to never do that again especially if you use air conditioning. Building science has determined this was a very bad idea because it traps moisture within the wall cavity. Here's a little Building Science 101 on this issue... http://buildingscience.com/documents/insights/bsi-073-macbeth-does-vapor-barriers


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wine cellars are special creatures because they have their own temperature and humdity control systems. its further complicated by the fact that where you are and your local climate change how you build them (in modern homes anyway) in most homes or buildings, the desire is to keep the cold dry air out and the warm humid air in. thus the need for the ...


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Closed-cell foam insulation is a vapor barrier itself. If this closed-cell foam is continuous, then you shouldn't have any issues. If it is just in the cavities between wood studs, then the studs may act as thermal bridges which may result in condensation on the humid side if the studs get cold enough.



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