Wall construction
#1
Member
Thread Starter
Join Date: Feb 2013
Location: usa
Posts: 4
Upvotes: 0
Received 0 Upvotes
on
0 Posts
Wall construction
I will have 2x6 wood stud walls. I wanted to insulate them with 2" polyurethane foam insulation. there will be hardiboard siding on both sides. The question is can the air gap in the cavity (5.5"-2"= 3.5"gap) be left as is? or does it need to be filled? Did I mention it must meet NFIP
#2
Member
Confused, why would you build a wall with 2 X 6's which is a great idea, and only use R-10 of insulation in it when it should be at least R-19?
https://www.energystar.gov/index.cfm...sulation_table
https://www.energystar.gov/index.cfm...sulation_table