[George Bieniaszek]

We have a CYV with west facing garage doors. The sun was pounding heat into the garage in the afternoon and we wanted to do something to bring the temps down. Thought about a garage fan but didn't like the vents in the garage doors, looks wise and safety wise incase of fire.

What we did was to insulate the garage doors with Styrofoam panels. This is an easy DIY project. We bought 4x8 foot panels from Lowes 3/4" thick, a razor knife, straight edge and magic marker.

Take the reinforcement stripes off the doors, measure and cut the Styrofoam to fit and that is all you need to do. Take your time, measure twice, cut once, and you can finish the project in 3 hours. Fit the cut panels into the doors, reinstall the reinforcement stripes. Total cost was around $100.00.

The Styrofoam made a noticeable difference in the temps in the garage and in addition, quieted the opening/closing of the doors somewhat.

I know the original poster inquired about garage vents, but here is a different direction to consider to lessen the heat build up in the garage.