Do Attic Fans Work

Some can have manual switches while others use a thermostat to turn them on and off automatically.

Do attic fans work.

How an attic fan works. 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. More than 50 of the attic fans i see do not work and have current still live to the motor.

In such doing the attic fan will reduce the temperature in the attic space that in turn cools down the whole house. 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. The attic fans are fitted with thermostats that will switch on and off the fan depending on the homeowner s preference. Attic fans exhaust hot air from your attic to the outside.

Ideally this will lower the high temperatures that have built up in your attic. Attic fans come with different models. Much of that heat then conducts downward and finds its way into 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.

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. 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. 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. Cooler outdoor air enters through open windows lowering the indoor temperature.

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. The main work of an attic fan is to regulate the heat level of the attic by removing hot air out of the attic and pushing it outside providing needed ventilation. Do not use mechanical means electric attic fans.

One of the leading causes for fires. Trying to solve the heat gain problem in your attic by using a fan is like lying out at the beach with a fan blowing over you and thinking you re not going to get a sunburn. How does an attic fan work. 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.

Fresh air is pulled in from your soffits and or roof vent creating a draft through your attic.