Are Attic Fans Necessary With Central Air

Quietcool attic fans work almost everywhere almost anytime.

Are attic fans necessary with central air.

If you have few vents in your attic most of the air will be drawn from inside the house. It also requires no assembly. Building codes often require about 1 foot of attic ventilation for every 750 cfm airflow. But you can install attic fans which will continuously replace the stagnant air with fresh outdoor air preventing your attic from turning into an oven.

Powered attic ventilators are housed in the. Rooftop fans and gable fans. Even though a manufactured cover costs more it is far easier to install. Intake vents located at the lowest part of the roof under the eaves allow cool.

Oh an attic fan will do that. A fan may actually suck air conditioned air from your home into the attic. In a properly designed passive system air enters through the soffit. Now if you did have central air conditioning i would tell you not to install an attic fan and here s why.

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. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Because typically attic fans are so strong that not only do they take the hot air out of the attic but they reach down into your house and take the cool air out of the house as well. During the summer an attic can be 40 to 50 hotter than the outside temperature which in turn heats up the house very quickly.

The ventilation that controls moisture from condensation and regulates the temperature in your attic relies on air circulation. By installing more roof vents such as a ridge vent you increase the possibility that most attic air will come from outside says tim carter a residential contractor in cincinnati. Some homes cannot accommodate the amount of attic ventilation that the older traditional style whole house fans require. With an attic fan you can cool the attic to the same temperature as it is outside greatly reducing the house from heating as quickly.

If installed anyway they won t work properly. 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.