I've been talking and thinking about doing this for 3-4 years now. Two days ago we finally took the first "ground breaking" step toward making it a reality. The garage on my house started out as a...
NRALIFR - Consider using Roxul instead of fiberglass batts. It's waterproof, fireproof and largely soundproof, but not appreciably more expensive than fiberglass. It also carries the same R value as fiberglass. Lowe's sells it.