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

Insulating cathedral ceiling

satinder | Posted in GBA Pro Help on

I am in climate zone 4. I have a cathedral ceiling. What is the best way to insulate it? My insulator is recommending R49 with R38 kraft faced and R11 unfaced. He is not installing any soffit vents. Is this going to be a problem leading to moisture condensation and/or ice damming? What is the recommended method of insulating a cathedral ceiling? I couldn’t find a clear answer on the website.

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. user-2310254 | | #1

    Best practices for cathedral ceilings are outlined here:

Log in or create an account to post an answer.


Recent Questions and Replies

  • |
  • |
  • |
  • |