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

How much rigid insulation on the outside of this house?

Chuck Everett | Posted in Energy Efficiency and Durability on

Old farm house. Want to add proper amount of rigid insulation over existing clapboards and install wood siding.

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.


  1. GBA Editor
    Martin Holladay | | #1

    Q. "How much rigid insulation on the outside of this house?"

    A. The answer depends on your climate and the depth of your studs. For more information on this issue, see Calculating the Minimum Thickness of Rigid Foam Sheathing.

    I also suggest that you read this article: How to Install Rigid Foam Sheathing.

Log in or create an account to post an answer.


Recent Questions and Replies

  • |
  • |
  • |
  • |