metal roofing over shingles on non heated storage shed

Guest User
Should i still lay down the recommended 1/4" fanfold insulation over the shingles to act as a vapor barrier even though there is no heat in the building? Jason
Eric Novotny
An informed customer is the Best Customer!
No reason that you need a vapor barrier if the space is unheated. Make sure that you lay down a slip layer to protect the underside of the metal roof.
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