Could anyone tell me if they have had any problems with having a vapor barrier on the ceiling of a house? I live in Maine and am not really sure if this is a good idea. Won’t the moisture escape through the ridge vent. Input please.
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The biggest problem is that so will the warm air in winter and the cool air in summer.
The vb forms an important component of the overall envelope system of your home and adds to your level of comfort.
Gabe
The ceiling is probably the most important place to make tight with vapour bar and caulk at penetrations.