Quote:
Originally Posted by Altavia
As other have said, they work the opposite since they pull hot air off the driveway.
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No....that is not true, if done properly. Vents alone will do nothing and as stated above, leaving the attic stairs open is against insurance and fire code. We installed "cool my garage" ceiling fan. The fan runs on an electric motor, is controlled on and off by the temperature in the attic, and has an emergency damper that will shut the opening in the ceiling down should a fire start. The approximate 12" exhaust fan pulls the air through the garage and up through the attic to the roof vents. My fan comes on when the temperature in the attic reaches 100*F and stays on until the temperature is lowered to 100*. The vents in the garage door are necessary to allow air flow through the exhaust fan to the ceiling vents. I have 4 vents in the lower panels of my double door. It also allows my to keep my attic stairway closed to meet fire and insurance requirements.
Cool My Garage - #1 Garage Fan | Garage Ventilation | Attic Fan