Summer Heat From Attic Fan

Install electric ventilators and attic fans which remove hot air from an attic.

Summer heat from attic fan.

Poor sealing insulation and ventilation. I am curious about the recommendation on your blog to reverse the ceiling fans to decrease the radiant heat transmitted from the attic through the ceiling. During the summer this leads to the hot air from the attic seeking out the cooler conditioned floors below. Since your attic can effortlessly soar above 95 degrees on average it s best to make sure that this space doesn t reach ten degrees above the day s forecast as many industry professionals can.

On one hand the national renewable energy laboratory said attic ventilation reduces attic temperature 10 to 25 degrees and slows the transfer of heat into the living space on the other the florida solar energy center university of central florida found that attics with nominal natural ventilation and r 19 ceiling insulation do not need powered vent fans. Summer attic air temperatures with old terra cotta colored asphalt shingles peaked at 140 to 145 at 18 above the blown in fiberglass insulation layer at the attic floor. Keep that super heated air from seeping into your living space. Start by examining the insulation that is already in your attic.

That is a. Known as the primetime for heat and humidity this is one of the most important seasons to make sure that your attic fan is adjusted correctly. They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees. Your attic can get as hot as 150 degrees in the summer.