foam board

My garage is attached to my house but, is per code, " fire barrier isolated " from my house. I did not have the garage ceiling sheetrocked or insulated. I had some things I wanted added in after we moved in. Now I need to insulate now and since the garage doors are hung and openers are in, it...

Question for the community. I just had a metal building from Caroline carport that I am going to insulate with 2” 4’x8’ foam board with foil on both sides. It will be enclosed with a garage door and a man door. Along the bottom i plan on putting up 4’x8’ plywood as to have a good wall for...