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For Martin Holladay

charliechan | Posted in GBA Pro Help on

I looked back at the article I referenced about air sealing a window. I was in the July, 2011, 2011, issue of FHB, not the November, 2015. I apologize.

My question is the same as in my earlier post.

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  1. GBA Editor
    Martin Holladay | | #1

    Installing expanding foam on the interior side of the window is a fairly standard air-sealing technique. It is unlikely that any liquid water will reach the area between the back dam and the air-sealing foam, but if it does, the moisture is likely to evaporate before it causes any problems. The flashing on the rough sill prevents any liquid water from entering the wall cavity.


  2. charliechan | | #2

    Thanks, Martin

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