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

Vaulted roof to truss transition

user-7694608 | Posted in Energy Efficiency and Durability on

I have a two part question:  I’m designing a home with a standing seam metal roof which is continuous over two different structural systems.  Section 1 in the attached image will be stick framed with 2x12s and will have a vaulted ceiling. Section 2 is framed with trusses, and will have a ceiling attached to the bottom chord. I am presuming a warm roof for section 1.   This is in New England: climate zone 5. 

Question 1: Section 2 can have a cold/vented roof, but should it? I’m worried about the transition between the two strategies. 

Question 2: Similarly, I’m uncertain as to how to transition between an un-vented/warm roof and a deep cantilevered eave.  How does one protect against ice dams in this scenario? 

Thanks for any input!

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.


Log in or create an account to post an answer.


Recent Questions and Replies

  • |
  • |
  • |
  • |