Do Attic Fans Work

Attic fans come with different models.

Do attic fans work.

Ideally this will lower the high temperatures that have built up in your attic. Attic fans exhaust hot air from your attic to the outside. However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the attic. Much of that heat then conducts downward and finds its way into the house.

How an attic fan works. More than 50 of the attic fans i see do not work and have current still live to the motor. Well what s been found is that if you turn the attic fan on in the summertime that it depressurizes the attic but it doesn t stop there. Fresh air is pulled in from your soffits and or roof vent creating a draft through your attic.

An attic fan works by drawing in cool air to the attic space that pushes out the hot air through vents. In the late evening or early morning the fan is turned on to exhaust hot air from the house. The problem with this design as argued by energy professionals is that attic fans also pull the conditioned air from your home into the attic. The attic fans are fitted with thermostats that will switch on and off the fan depending on the homeowner s preference.

Do not use mechanical means electric attic fans. This prevents hot air from seeping into your home and driving up the temperature in the living space which reduces the load on your air conditioner. Some can have manual switches while others use a thermostat to turn them on and off automatically. Ventilation fans or powered attic ventilators are designed to cool the attic pushing out the hot attic air and rushing in a flow of cool outside air.

A whole house fan is usually installed on the attic floor near the center of your house. In such doing the attic fan will reduce the temperature in the attic space that in turn cools down the whole house. How does an attic fan work. Powered attic ventilators are housed in the.

Attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents soffit and gable and pushing hot air to the outside. Attic ventilation fans help cool air your attic by pushing out the stifling hot air from inside the attic and bringing in cool air from outside. Using a fan to blow hot air out of the attic doesn t address the radiant heat flow from the roof to the attic floor. One of the leading causes for fires.

This air is then exhausted through the fan to the outside.