faced insulation


Old 11-12-03, 03:42 PM
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Join Date: Nov 2001
Location: Minnesota
Posts: 208
faced insulation

I have a walkout basement with block foundation. At the highest point the foundation is about 3.5' high. I have built 2x4 "half walls" and spaced approx 1" from foundation. I used faced R13.
Is it ok to use 2 pcs butted in the same cavity with a seam, and if so do I need to seal the seam? I have done that on a few cavities as I had a lot of cut pcs.
I thought about just putting up some poly over the facing, is that acceptable?
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Old 11-12-03, 08:16 PM
Join Date: Nov 2001
Location: USA
Posts: 1,873
You could tape the seams with either duct tape or aluminum tape. This will work better than using the plastic.
Old 11-16-03, 11:12 AM
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The Kraft facing on insulation is rather usless as a vapor barrier. The resistance to moisture of a poly sheet is about 50 times better. I would reccomend taping the seams of the poly with tyvec seam tape or other tape with long adhesive life. The gllue on duct tape will fail in about 5 years.

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Old 11-16-03, 01:10 PM
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Join Date: Aug 2002
Location: Mountain Williams Missouri
Posts: 18,389
Lightbulb V/B

Just get the poly So it will cover the whole wall for you over the insulation then put up the drywallare what ever ED

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