Economical way to insulate detached garage
I have a 2 car detached garage. Garage use to have a storage area on second level but after some damage from old roof I had to take off second level flooring and redo roof. I want to use the garage in winter as a workout space. I live by New York City. What is an economical way to insulate and finish walls. I’m thinking fiberglass batts with osb wall covering. What about roof, do I insulate it? Should I install a ceiling and redo storage area floor? Looking for most economical way, it’s detached doesn’t need to be pretty just functional.
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