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-   -   Finishing my basement: wall insulation? (http://www.diychatroom.com/f103/finishing-my-basement-wall-insulation-117242/)

1jumper 09-14-2011 06:37 PM

Finishing my basement: wall insulation?
 
Hi all. First post. Been lurking for a while trying to find some answers to convince myself I can tackle my basement finishing project.

My home is in Freeland MI, zone 5 for insulation code purposes. My basement has poured walls, excellent drainage and radiant heat tubes in the floor and is unfinished. I'm going to stud frame and drywall the walls. Should I put a vapor barrier between the poured wall and the stud wall? Or, should I not install a vapor barrier so the wall cavity can breathe and just insulate the wall cavities? Any input would be appreciated. Thanks.

Rob1975 09-14-2011 07:10 PM

VB goes on the warm side. I prefer spray foam insulation which acts as insulator and VB.

1jumper 09-14-2011 07:33 PM

So, paper side of the insulation facing the inside, against the backside of the drywall? That makes sense now that I think about it. How else would I install it!? Duh! What about Visqueen plastic sheet against the wall?

Rob1975 09-14-2011 08:15 PM

Quote:

Originally Posted by 1jumper (Post 728379)
So, paper side of the insulation facing the inside, against the backside of the drywall? That makes sense now that I think about it. How else would I install it!? Duh! What about Visqueen plastic sheet against the wall?

VB goes on warm side. Drywall, plastic, studs, and insulation.

Gary in WA 09-14-2011 09:04 PM

No vapor barrier or vapor retarder asphalt paper-faced on walls below grade: http://www.buildingscience.com/docum...lation-systems

Removed in 2009 IRC - no vb in basements.

Gary

1jumper 09-15-2011 09:01 AM

Thanks for the replies. They answered my questions.

AGWhitehouse 09-15-2011 10:29 AM

Quote:

Originally Posted by Rob1975 (Post 728406)
VB goes on warm side. Drywall, plastic, studs, and insulation.

DO NOT put in plastic!


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