What Is An Attic Fan?

Roof,top,ventilation,system,for,heat,control,of,commercial,buildingWhat Is An Attic Fan?

An attic fan is a ventilation system that helps cool your house by drawing hot air out of the attic. It also reduces humidity and can prevent mold and mildew. There are many different kinds of attic fans to choose from. It is important to find the right one for your home.

Attic Fan Functionality

An attic fan helps keep your attic cool by pulling warm air out of the space and dumping it outside. This helps lower your energy costs and reduces the amount of strain on your HVAC system. An important factor in determining whether an attic fan is effective part of your energy-efficient HVAC installation is how well-insulated it is. If it is poorly insulated, the hot air will get trapped in the attic and the cool air from inside the house will not be able to circulate. Additionally , many attic fans come with a programmable thermostat, which turns on the fan when the room reaches the desired temperature. Others work with a dial that you can set manually, so your attic fan will run for as long as you need it. A more advanced option is an attic vent fan that can control humidity, starting and stopping based on the level of moisture. These types of fans can also be integrated into smart home systems and used in conjunction with an app.


An attic fan can increase airflow in your attic by pushing the hot, moist air out and circulating cool, dry air in. This helps to disperse and dry out the moisture that would otherwise collect in soft materials, such as insulation, drywall, and plywood, and prevent mold from growing. The more powerful your fan, the better it can pull a greater volume of air out of your attic space. To determine this, consider the cubic feet per minute (CFM) rating of the fan and compare it to the size of your attic. An attic fan will also improve your home’s energy efficiency by removing excess heat from the roof and circulating cooler air. This can help to lower your heating and cooling service energy bills, especially if you use a central air conditioning system.

Mold And Mildew

During the colder months, an attic fan can help prevent mold from growing on your roof. It also reduces the amount of ice that forms on your roof, which can be dangerous for your family and your home. Attics tend to be dark and damp, so they can be a great place for mold to form. Basements are also prone to mold, as they tend to be dark and often have no ventilation system or windows. Another area where mold can grow is in your kitchen. The cooking process can cause steam to build up, which makes it the perfect breeding ground for mold. An attic fan can help keep your kitchen and basement mold-free, which will make it healthier for you and your family! Contact us today to learn more!