A solar powered attic exhaust fan is designed to extract air from the attic to remove all of that contained heat reducing temperature values to a cool range between 40 50 f.
Solar attic fan temperature reduction.
Solar attic fan and expected temperature reduction i have 3rd car garage that has been re purposed as a media room and so i m trying to see if a roof mounted attic fan will help reduce the temperature in this room during summer months.
An attic ventilation fan with an installation cost of anywhere from 200 to about 1 300 is a common choice.
Ad the infrared rays from the sun are powerful.
The solar attic fans all moved less than 1 000 cubic feet of air per minute cfm and they did nothing to lower the temperature inside my own attic.
The benefit from lowering temperatures in the attic and thus reducing heat gain from the attic into the house is usually off set by the electricity use by the fan and the increase in air leakage.