An attic fan is installed on the slanted.
How your house attic fan works.
Some can have manual switches while others use a thermostat to turn them on and off automatically.
The fan forces air into your attic purging the hot air out of the attic through the existing vents.
An attic fan works by drawing in cool air to the attic space that pushes out the hot air through vents.
Attic fans come with different models.
Whole house fans should provide houses with 3 to 6 air changes per hour varies with climate floor plan etc check with a professional to determine what is appropriate for your home.
In such doing the attic fan will reduce the temperature in the attic space that in turn cools down the whole house.
Firstly let s start off with clarifying the difference between a whole house fan and an attic fan.
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.
An attic gable fan is one way to help with the circulation of air in the attic.
Attic fans are installed at the roof level of your home to regulate the heat level.
Home our whole house fan will do an entire air exchange in 4 5 minutes.
The attic fans are fitted with thermostats that will switch on and off the fan depending on the homeowner s preference.
The whole house fan pulls air in from open windows and exhausts it through the attic and roof.
A whole house fan is typically installed in the.
Intake vents located at the lowest part of the roof under the eaves allow cool.
As hot air rises to the top fans push the hot air out and cool down the home by drawing in the fresh air.
There are several different types of attic ventilation systems but most of them feature small vents soffit and gable which draw in cool air along with a primary fan that pushes air outside.
For example in a 2 000 sq.
Do attic fans really work.
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.
Simultaneously negative pressure is created in the living area which helps to draw cooler air in through the windows.
Additionally an improperly ventilated attic can lead to a buildup of moisture which can wreak havoc on drywall insulation and even structural components like joists studs and rafters.
Because heat rises it tends to make attics the hottest part of the house.
Attic fans work on the principle of pushing out the attic s hot air and replacing it with cool air from outside.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
It provides good attic ventilation in addition to whole house cooling.
