How To Insulate A Garage With Finished Walls. So you want to finish a garage wall? Wall insulation & vapour barrier.
There are many advantages including.
It isn't cost effective to insulate an unheated garage. How we insulated and drywalled our new garage. You can use fibrous types, (cellulose, fiberglass, or rockwool), a 2 part spray foam or rigid sheets. It pays to insulate your garage if you're adding heat these will give the walls a slightly more finished look, and you won't have the itchy fibers of the insulation.