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Enclosed Patio vapor barrier?

redvett's Avatar

Join Date: Dec 2002
Posts: 113

02-18-17, 01:47 PM   #1  
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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Bud9051's Avatar

Join Date: Oct 2008
Posts: 9,772

02-18-17, 03:55 PM   #2  
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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