Old 01-18-02, 10:01 AM
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By my local code I am to use R-19 insulation. Is the vapor barrier good enough on the fiberglass or do I need to put up plastic also? My job is adding family/play rooms in my basement. I have spaced my studs 1 1/2" from the concrete foundation, spacing 16" on center with PT sill plates. Please advise.
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Old 01-18-02, 11:04 AM
Join Date: Jul 2001
Location: Riverdale, MD
Posts: 529
IF it came with a vapor barrier, it should be good to go. You did frame the walls with 2x6 lumber, right. If you framed with 2x4 then you should only use r-13
Old 01-18-02, 03:29 PM
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You do not want to use a visqueen vapor barrier over Kraft faced insulation. Either use unfaced insulation and poly or kraft faced.

Just curious where do you live that they require R-19 in basement walls?

Good Luck

Old 01-18-02, 08:21 PM
Join Date: Mar 2000
Location: Arlington, WA
Posts: 9,238
Jim, dp22 lives in New Hampshire. I've seen pictures -- it gets pretty cold there too! (LOL!!)

Seriously, dp22, you only want ONE vapor barrier, like garywms pointer out. And if you need R-19, you have to install it in a wall that has at least 2X6 framing.

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