If you ever stepped into your attic during the summer months, you would feel the intense heat! The problems we most commonly find are mold growth due to the increased temperature and poor ventilation. Discover what attic fans do, why you should have one, and what type of attic fans are available.
An attic fan (aka powered roof vent) is a fan installed on the ceiling of your attic. It draws hot, humid air out of your attic and pushes it outside, reducing the temperature in your attic and the rest of your home.
During the summer, attics can become significantly hotter than the outside air. This heat builds up and radiates downward, warming the rest of the house and making it uncomfortable. This also forces the air conditioner to work harder. Lowering the attic temperature can help keep the house cooler and reduce the air conditioner’s workload.
In the winter, attic fans work similarly. Warm indoor air seeping into the attic meets cold outside air, leading to moisture buildup. This can cause mold and ice damming issues. Using an attic fan to circulate the air can help prevent moisture accumulation.
Two types of attic fans are available for your home: Electric attic fans and Solar fans. Each type has unique features but both accomplish the same task of promoting airflow in the attic.
Electrical fans are the most common. They are connected to your home’s heating and cooling system and require wiring to be installed. A thermostat turns on the fan when attic temperature reaches a specified level. Attic fans are generally cheaper than solar fans.
Solar Fans are powered by photovoltaic panels mounted on the fan. Solar fans do not consume electricity from the grid, leading to long-term savings. They are not thermostat- controlled and run when the sun shines. Solar fans cost more than electric attic fans.
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