GBA Logo horizontal Facebook LinkedIn Email Pinterest Twitter X 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

Unvented Roofs

tignarius | Posted in Building Code Questions on

The 2009 IRC allows for unvented roofs, providing there is compliance with severals qualification, including air impermeable insulation. Does anyone have any experience attaching polyiso insulation to the underside of the roof deck?

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

Log in or create an account to post an answer.

Community

Recent Questions and Replies

  • |
  • |
  • |
  • |