View Single Post
Old 12-10-13, 01:11 AM   #383
jeff5may
Supreme EcoRenovator
 
Join Date: Jan 2010
Location: elizabethtown, ky, USA
Posts: 2,428
Thanks: 431
Thanked 619 Times in 517 Posts
Send a message via Yahoo to jeff5may
Default

I edited my previous post with an example that i robbed from here:

http://portal.ncdenr.org/c/document_...&groupId=38322

The topic of underfloor insulation doesn't have a lot of coverage, mainly because engineers regard it the same as the boundary between the ceiling and the attic.

Another good article on air gap u-value:
http://blogs.mentor.com/robinbornoff...ation-part-iv/
If ur really interested, you can backtrack to the 3 previous posts from there

Last edited by jeff5may; 12-10-13 at 01:27 AM..
jeff5may is offline   Reply With Quote