Quote:
Originally Posted by GoinAllTheWay
You sure about that? I was under the impression that a vapour barrier was only needed on an exterior wall. This is a wall that devides two garages and is not exposed to the exterior.
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Play it safe and install the vapour barrier. Moisture build-up may or may not be an issue although I would think that in the dead of Winter, the unheated garage could be sitting at near freezing and the heated garage at a comfortable +18. I would think that to be enough of a difference to create the potential for moisture build-up. There is also the issue of some heat loss which the vapour barrier would mitigate.
To the OP . . . it's a garage. Does it need to look pretty inside? If not, pulling down drywall and reinstalling with 6mil is a fairly simple job.