The complete source for building, designing, and remodeling green homes
I'm getting quotes from contractors right now to insulate a small cottage with an unvented cathedral ceiling using 2x10s. I'm in zone 3C. One contractor has suggested spraying 5.5" of…
Become a GBA Prime member and get full access to GBA articles, enyclopedia, videos, CAD library, and more.
Do you really want to delete the list,?
This won't delete the articles you've saved, just the list.
Please log in or create a free account.
This feature has been temporarily disabled during the beta site preview.
You must be a magazine subscriber to access this feature.
Subscribe today andsave up to 44%
Orlearn more
Already a subscriber?
Recent Q&A
Open-cell foam in an unvented cathedral ceiling
I'm getting quotes from contractors right now to insulate a small cottage with an unvented cathedral ceiling using 2x10s. I'm in zone 3C. One contractor has suggested spraying 5.5" of…