If you have living space over the top of the garage, it does help to at least insulate the ceiling. Otherwise, unless you're spending a lot of time in the garage, the answer may be no. If you do a lot of work in
(1). Gypsum board ceiling and drywall system, such as housing, hotel, theater, school, hospital etc. (2). Fireproof gypsum board can be widely used in high fireproof requirement environment, such as hotel, hospital, school, house and factory etc. ...
As can be seen, the structural frame (403) in this case is actually enclosed, on two sides, by tabs (401) which extend down to the ceiling material (generally drywall) through which the attic opening (12) exists. Specifically in this case, the elongated tabs (401) serve to form a ...