How to ventilate my garage?
My garage is fully finished with drywall. It has one window that opens, one door into the house and the large garage door. There is no ventilation at all so in the winter when hot cars come in, it warms up the garage and I get massive condensation on the window, which then can freeze or run down and damage the drywall under the window. This year I noticed minor water stains under my main breaker box, which I believe must be from condensation also. How can I get some ventilation in there to rapidly equalize the temperature and keep the humidity/condensation to a minimum? I've considered replacing some of the glass panes on the door with custom made screens. I could install some sort of wall vent, but I'm not sure what type. I thought about roof venting, but I don't want to make holes in my roof.
What's the best way to ventilate a finished garage?
Power drill, handgun, just about anything that will produce holes.

You might not like it but a roof vent is the only way to go as heat goes up.
What about keeping the garage a little warmer all the time?
Originally Posted By postpostban:
What about keeping the garage a little warmer all the time?
If it's anything like my garage, it's detached and not heated. Mine also needs to be vented, but that's a project for next year.
maybe a panasonic bath fan in the ceiling vented outside
you could put it on a timer triggered by the garage door opener as the exhaust
and a damper to the outside on the opposite end of the wall triggered by the fan if necessary for intake air
Originally Posted By Handydave:
maybe a panasonic bath fan in the ceiling vented outside
you could put it on a timer triggered by the garage door opener as the exhaust
and a damper to the outside on the opposite end of the wall triggered by the fan if necessary for intake air
dont even have to go that advanced. you can just buy a timer switch and install it near the door. turn it on as you walk past and only used when needed.