GBA Logo horizontal Facebook LinkedIn Email Pinterest Twitter Instagram YouTube Icon Navigation Search Icon Main Search Icon Video Play Icon Plus Icon Minus Icon Picture icon Hamburger Icon Close Icon Sorted

Community and Q&A

Windows installation over foam board

cww1 | Posted in Green Building Techniques on

Going to be replacing siding and windows and am planning on installing 1″ rigid foam board over sheathing. My main question is with installing the windows, can they be installed directly over the foam board or should I picture frame out around the opening? Or I guess the right question would be what is the best way to install over 1″ of rigid. Thanks.

GBA Prime

Join the leading community of building science experts

Become a GBA Prime member and get instant access to the latest developments in green building, research, and reports from the field.

Replies

  1. GBA Editor
    Martin Holladay | | #1

    Chris,
    The first thing to do is probably to read this article:

    Nailing Window Flanges Through Foam

    After you have read the article, you can post any further questions you have on this page.

  2. BruceAF | | #2

    Chris - you did not mention what climate zone you are in....make sure you are installing enough foam:

    https://www.greenbuildingadvisor.com/blogs/dept/musings/calculating-minimum-thickness-rigid-foam-sheathing

Log in or create an account to post an answer.

Community

Recent Questions and Replies

  • |
  • |
  • |
  • |