My current feeling is that the cieling isn't insulated enough in the garage. I haven't had a chance to investigate thouroughly yet, but I imagine there is some insulation there (as if there wasn't the room would be unbearable), but not enough.
I need to rectify this problem before next winter, and was wondering if anyone had any advise as to what I should look for in the existing insulation (what is enough, etc), and possible solutions. Someone suggested gluing styrofoam insulation to the existing garage ceiling, and then painting it. Though it makes sense, I can't say if it's really a good idea or not (and I wouldn't know how to fill the seams, etc anyway). Any sage advise would be very welcome.