Why don't garages have vent fans? (Hot areas of US)

[SOON2BNSURPRISE]

Originally Posted by ETex2

Nearly all houses built around here in the last 30-40 years have sheetrock ceilings and walls that are insulated. Still hot out there though, and no windows. A fan blowing hot air around when it's 100 degrees outside doesn't help much even with the garage door open.

That's good. Around here we end up doing that to older homes. Mine was built in 1962 and few garages were finished back then. Another thing to consider is a reflective barrier placed on the roof before the roofing material is laid down to reflect heat away from the structure. Maybe my suggestions won't work for places where it hits 100+. Around here when it is 80 that is a hot hot day.

[MadManofBethesda]

Originally Posted by Dopo

Why don't garages have vent fans?
It should be very easy to do and would save people lots of money in their electrical bill.
Every house has them in bathrooms and kitchen, why not go ahead and put one on the garage wall?

Who says they don't?

My house in Las Vegas has just that type of vent fan in the garage, albeit in/on the ceiling rather than the wall. But truth be told, I don't think that I've ever turned it on. The garage also has a regular ceiling fan, but the only time it is used is when someone is working in the garage, say servicing the garage door or painting the garage itself.