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Q: when installing paper backed insulation in a 2 x 4 wall, which side does the paper face?

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  • A: which way does the paper backing on insulation face?



    At least in the midwest, this paper backing (otherwise known as kraft faced batts) typically goes toward the room side. This paper acts as a vapor retarder and keeps moisture from entering the room side. This vapor retarder is only as a good as the installation though.

    Jason Gettum
    Gettum Associates, Inc
    http://www.gettum.com

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    Feb 1, 2023

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