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Interior vapor barrier

[email protected] | Posted in General Questions on

We had one room remodeled. One west wall (upstairs),one north and south wall now has outside insulation, fiberglass interior, poly sheet vapor barrier, and dry wall. Now I am wondering if we need to remove it. It is only in one bedroom, but I read your article and now I am concerned. Please give your thoughts. Thanks.

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  1. GBA Editor
    Martin Holladay | | #1

    Phette,
    You haven't given us enough information to answer your question.

    We need to know:

    1. Your location or climate zone.

    2. More information on the "outside insulation." Is it rigid foam? If so, what type (XPS, EPS, or polyiso)? How thick is it?

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