How Your House Attic Fan Works

Even though an attic exhaust fan can incrementally lower the temperature of a very hot attic using a fan does not stop the source radiant heat.

How your house attic fan works.

The whole house fan pulls air in from open windows and exhausts it through the attic and roof. 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. Attic fans are installed at the roof level of your home to regulate the heat level. This air is then exhausted through the fan 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. During the day any cooler air brought in by the fan will be heated up immediately by the surrounding structure. Fresh air is pulled in from your soffits and or roof vent creating a draft through your attic. As hot air rises to the top fans push the hot air out and cool down the home by drawing in the fresh air.

An attic fan works by drawing in cool air to the attic space that pushes out the hot air through vents. For homes or buildings with a whole house fan the hot air is pulled into the attic. Cool air in hot air out attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Intake vents located at the lowest part of the roof under.

In such doing the attic fan will reduce the temperature in the attic space that in turn cools down the whole house. Some can have manual switches while others use a thermostat to turn them on and off automatically. How an attic fan works attic fans exhaust hot air from your attic to the outside. The attic fans are fitted with thermostats that will switch on and off the fan depending on the homeowner s preference.

Simultaneously negative pressure is created in the living area which helps to draw cooler air in through the windows. They can help you save a lot of money on your energy bills as you may not have to use air conditioning if the weather isn t too hot. It provides good attic ventilation in addition to whole house cooling. Most fans cannot keep up.

Due to positive pressure air in the attic is pushed out through the vents or gables. Attic fans come with different models. 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. How does an attic fan work.