Do Attic Fans Cool House

Venting a homes attic is a very important best building practices will say 50 at the ridge and 50 at the soffits unobstructed.

Do attic fans cool house.

When an attic fan is operating during the hottest summer days the temperature in your attic can drop by as much as 50 degrees. 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. A powered attic ventilator has a different purpose. Adding an attic fan can improve the airflow in your attic to keep it cool.

Do not use mechanical means electric attic fans. It provides good attic ventilation in addition to whole house cooling. The whole house fan pulls air in from open windows and exhausts it through the attic and roof. 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.

Once the house has cooled the fan can be turned off and the windows closed. To ensure that the attic fan is working properly you need to make sure that your attic is sealed up tight where it touches the ceiling of the top floor. Using the simple physics principle of air circulation it can draw in cool air while letting out the warm air. Yes attic fans can make a difference.

They can provide a cooling effect that reduces temperature significantly in your house. As a certified licensed home inspector it is not correct to say too much ventilation is bad for an attic unless rain moisture is getting in. Cool air in hot air out attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Note that they do not push air in the house but draw fresh air into the attic enabling your house to cool almost instantly.

The windows remain closed until the next evening to. Intake vents located at the lowest part of the roof under. Vents do provide some passive cooling but not enough to truly reduce your indoor temperatures. Generally speaking they can cool down a house in less than an hour.

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. It is designed to lower the temperature of an attic by exhausting air from the attic and replacing attic air with outdoor air. Attic fans push out the hot air and pull in the cool air from the vents installed on your roof.