What do you do about plastic over upside down insulation in crawlspace

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What do you do about plastic over upside down insulation in crawlspace

Lisa Milne Published: May 13, 2020, 12:57 p.m.Last updated: June 3, 2020, 8:55 a.m.

Hello,  I bought a house where they installed the fiberglass insulation upside down in the crawlspace. There is a vapor barrier over dirt floor.  Can I just put a plastic vapor barrier over the insulation to stop moisture from from getting into the insulation?  Instead of tearing it down ($$$) or trying to turn it over.  I was told by an insulation guy that you can't have vapor barrier over insulation up on floor boards and on dirt floor. I don't understand why that would matter?  Thank you for any help,  Lisa

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