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-   -   Is vapour seal required over Styrofoam insulation? (https://www.askmehelpdesk.com/showthread.php?t=805307)

  • Nov 30, 2014, 03:11 PM
    mbetts
    Is vapour seal required over Styrofoam insulation?
    Is vapour sealing required over Styrofoam insulation in my unfinished basement?
  • Dec 20, 2014, 06:24 PM
    ballengerb1
    Vapor barriers stop moisture from reaching insulation. In your case moisture would not harm foam but it could allow mold to form so the answer is YES it is needed

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