0 Helpful?

Wood Foundations

I live in a 25 year old home constructed with a wood foundation. The basement is dry, and insulated on the inside with r-19. To cover the insulation which has been dmaged over the years with holes in the paper covering, I want to cover it with a 6 mil poly. This would be for aestetics only, as the foundation remains solid. With a wood foundation, would a 6 mil interior vapor barrier do any damage that I need to be concerned with.

Asked by Dan Huberty
Posted Sep 22, 2010 1:49 PM ET

Tags:

1 Answer

Select your preferred way to display the comments and click "Save settings" to activate your changes.
1.

Yes.

If this is what's called an All-Weather Wood Foundation, made from pressure-treated framing and pressure-treated plywood, it will have a vapor barrier on the exterior. Using a double vapor barrier will trap moisture in the wall and cause swelling, possible delamination of the plywood, mold growth if not rot.

Cover the walls with MR (moisture-resistant) drywall or some other moisture-resistant but vapor-permeable material.

Answered by Riversong
Posted Sep 22, 2010 3:27 PM ET

Other Questions in General questions

New house build, SIPs?

In Green products and materials | Asked by Lance Peters | Jan 15, 17

Apple Iphone 5s, 5c Pros And Cons

In Green building techniques | Asked by Maxie Broun | Jan 20, 17

Taiwan's TSMC Lifts 2016 Earnings Forecast After Third

In Green building techniques | Asked by Hildegarde Rider | Jan 20, 17

Android Vs IPhone

In Green building techniques | Asked by Micheal Cadman | Jan 20, 17

Apple Inc. Merely Broke Records With App Store Sales Of 1. 7 Billion In July

In Green building techniques | Asked by Libby Folse | Jan 20, 17
Register for a free account and join the conversation


Get a free account and join the conversation!
Become a GBA PRO!