Enclosed Patio vapor barrier?


Old 02-18-17, 01:47 PM
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Join Date: Dec 2002
Location: Michigan
Posts: 115
Enclosed Patio vapor barrier?

I had my patio enclosed and joists insulated. Should I use a vapor barrier before drywall in AZ.
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Old 02-18-17, 03:55 PM
Join Date: Oct 2008
Location: New England
Posts: 9,997
AZ has a variety of climate zones but unless you are way south in a very hot region then no VB is needed. And it it was needed it would go on the outside of the stud walls.
You said joists insulated so not sure if you are referring to ceiling joists or wall studs.


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