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Attic Exhaust Fans

It’s no secret that hot air rises—making your home’s attic one of the hottest spots in your house. In summer, attic spaces can become absolutely unbearable, reaching temperatures in excess of 160 degrees Fahrenheit. An excessively warm attic can have a negative impact on the overall temperature.

In the winter months, when interior condensation is common and exterior ice dams can form on roofs and eaves, attic ventilation is just as important. Moisture trapped in the attic can cause mold and mildew to grow on insulation and can lead to wood rot—making your attic unsafe for storage, and for people.

An attic fan can be a boon to your home’s attic ventilation system.

Read on to learn everything you need to know about attic exhaust fans and attic fan installation, from the experts at Aire Serv®.

What Is an Attic Vent Fan?

An attic fan is installed in an attic as a part of a home’s ventilation system. It’s designed to draw hot air out of the attic, helping to regulate the amount of stagnant heat and humidity in the attic.

Attic fans can be gable-mounted (mounted on a wall of the attic beneath a gable) or roof-mounted, and can be turned on and off manually or can be controlled by a thermostat. Thermostat-connected attic fans turn on automatically when an attic reaches a set temperature.

How Does an Attic Fan Work?

Attic fans work by exhausting hot air out of an attic through the fan vent and drawing fresh air in through standard attic vents. This process keeps fresh air moving throughout the attic, reducing the presence of heat and humidity. In turn, attic fans assist in keeping home’s cool.

It’s vital that an attic is adequately vented to the outside, insulated, and sealed from the rest of the home for an attic exhaust fan to work properly. If an attic is not well sealed from the rest of a home, an attic exhaust fan will draw cool air (air-conditioned air) up through the attic and exhaust it out of the home.

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Why Is Attic Ventilation Important?

Attic ventilation is important for three key reasons. Proper attic ventilation:

  1. Reduces temperature extremes
  2. Reduces energy costs
  3. Extends the useful life of your home’s roof and insulation

Your home can exist without an attic vent fan, but installing one substantially increases the efficacy of your home’s existing ventilation system, making your attic less susceptible to mold, mildew, rot, and extreme temperatures.

Aire Serv Attic Fan Installation

The first step to attic fan installation is to audit the number of vents that already exist in the attic. An attic fan will not function properly if the attic is not otherwise well ventilated. In general, it’s recommended that homeowners install 1 sq. ft. of attic ventilation for every 300 sq. ft. of attic space. For optimal function, the attic should be well insulated and sealed from the rest of the house.

After ensuring that the attic is well ventilated, Aire Serv technicians will assist you in choosing the attic exhaust fan best suited for your home. In general, gable-mounted varieties are slightly easier to install, as our technicians do not need to disrupt shingles for installation. Automatic or thermometer-controlled fans are recommended, as they do not require homeowners to turn them on manually.

Once a homeowner has chosen the make and model of their attic exhaust fan, a local Aire Serv technician will cut the appropriate-sized hole in the ceiling or roof, install the shutter or cover on the exterior of the opening, and finally, install and wire the fan.

Depending on the size of your attic, your local Aire Serv technician may recommend installing multiple attic exhaust fans.

Call Aire Serv for Attic Fan Installation and Service

Are you ready to upgrade the efficiency of your home and keep attic mildew at bay with the installation of a new attic fan? Breathe easy with attic fan installation from your local Aire Serv. Schedule an appointment online or contact your local Aire Serv and get started today.

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