Insulating Garage Ceiling
We live in Southern CA and have a two-car attached garage. The ceiling is dry-walled but not insulated. We use the space above the garage for storage. I am wondering if it would be worthwhile to add insulation in the ceiling. Would it make a difference in the temperature in the garage even if the garage door isn't insulated? I am not sure if the walls have insulattion.
I have blow-in and fiberglass R-11 rolled insulation. If we use the blow-in, I would want to put in no more than 4 to 6 inches to allow us to continue using this area for storage. Other options would be to use the fiberglass insulation on the floor or the ceiling. The ceiling is a sloped A-frame. I would appreciate any advice on the best type of insulation and where to put it. Thanks.