Garage wall insulation
26x40 attached garage with radiant floor heat in the slab. Standard exterior construction, i.e. 2x6 walls, sheathing and Tyvek with vinyl siding.
I am trying to plan the most effective way to keep my radiant heat in the garage so it can stay warm and help warm the bonus room above. I have several ways of doing this and would like an opinion on them:
1. Spray 2-3 inches of open cell foam into the stud cavities, then drywall.
2. Spray 2-3 inches of CLOSED CELL foam in the studs and drywall.
3. Install Roxul batts, then vapor barrier (or smart barrier whichever is better) and drywall.
Cost is a big consideration here so I do not want to break the bank.
Posted Sep 4, 2014 7:55 AM ET
Edited Sep 4, 2014 9:05 AM ET
Other Questions in Energy efficiency and durability
Why is there condensation on the return ducts and mold in the attic as well 60% humidity throughout the home?
Is it ok to step the slab thickness over the footings to accommodate insulation between the slab and the footings?