Pros and Cons of different types of expanding foam for air sealing?
Hey there. I saw that in the last issue the magazine they did a "tape off" between the different types of tapes. Has there been anything like this for expanding foams used for sealing? There are quite a few on the market between the different brands....
I am asking because I need a foam for sealing between XPS and wood ceiling rafters. I would like something that is flexible due to the expanding and contracting as well as living in an earthquake prone area.
Any links for discussions on this?
Asked by Kevin Lauscher
Posted Wed, 03/20/2013 - 12:53
Posted Wed, 03/20/2013 - 12:53
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Kevin,
I have never heard of such a test, but I doubt if there is much of a difference between brands.
You are right to be skeptical of the ability of spray foam (whether one-component foam or two-component foam) to maintain a long-term air seal in this location.
One of the high-quality European tapes (for example, Pro Clima Tescon No. 1) is likely to perform better in this location -- but it's pricy.
Posted Wed, 03/20/2013 - 13:34