Benefits of a well-ventilated attic.
Solar Attic Fans and Electric Attic Fans
Solar attic fans are easily installed and use little or no energy. When we do a heat load calculation on a home with an attic we calculate about 40% of the design on high attic temperatures. Properly ventilated attics call for reduced size which saves money on the initial installation cost. For existing systems the reduced load will create longevity and energy savings. The thermostat gets satisfied faster and the home maintains the temperature longer. With such savings realized by a simple thing like attic fans, we are not sure why all homes are not required to be built with proper ventilation.