aholgate

I agree with the last post. What I did when I did my garage conversion was to put 1.5" - 2.0" of Closed Cell Spray Foam insulation on the walls. Now the garage had foundation walls so I built a new inside wall inside that foundation and staggered the studs. So I had a huge wall space and I ran all my electrical in the outside wall after the spray foam and then put in R19 in the walls for a total of about R26 or so and we took out the 2x6 Ceiling Joist!! Yes 2x6 and put in 2x10 and put in R30. There is an attic above this that I'm making a storage room that also has the spray foam in it and then I have R13 on top so maybe not the best in this space but the heated space has all it needs.