Attic fans work best at night, when the outside temperature cools and air enters your warm home to cool it down. During warmer months, you may need to run your attic fan more often to stay cooler. Of course, this will depend on where you live, but typically, homeowners will benefit from having the attic during the day during the spring and summer months. Turn on the attic fan during daylight hours during warm summer weather.
Sunlight on the roof produces heat in the attic. Running the fan when sunlight energy hits the roof removes heat that builds up in the attic. Yes, in most cases you could benefit from an attic fan.
attic fansdraw warm air out of the attic and ultimately lower the indoor temperature.
Typical penthouses will reach 120-150 degrees during the summer. An attic fan can help lower that temperature by up to 50 degrees, which translates to a temperature up to 5 degrees lower inside your home. Not only will you feel cooler inside, but your air conditioner will last longer since you won't need to cycle as much. In addition, attic fans have been proven to help extend the life of the roof as well.
An attic fan isn't just for summer, you'll use it all year round. An attic that is too hot causes ice accumulations. As snow melts and refreezes, it can damage roofs, gutters, walls and more. What is an attic fan? AT.
An attic fan or electric attic fan is a fan specially designed to blow warm air out of the attic space. The fan is normally mounted on top of the roof itself, drawing the warmer air out first while drawing in cool air from strategically placed intake vents. Will an attic fan look weird on the roof? AT. No, the fan housing is only 8″ tall and 22″ in diameter.
Can only be seen from one side of the house, usually the back. How much energy does an attic fan consume? AT. Very little, just like 2 or 3 bulbs, 250 watts. Much, much less energy than an air conditioner uses to cool the effect of warm attic air.
How do you operate an attic fan? AT. An attic fan is usually automatic. An adjustable thermostat, which is included, turns the fan on and off depending on the temperature. If you have a humidistat installed, also turn the fan on and off according to humidity.
Will the attic fan draw air from inside my house? AT. No, air is taken from the outside through the attic vents. The already cooled air inside the house is intact. When does the attic fan work? AT.
We set the adjustable thermostat to turn on the attic fan at 100°F and turn it off at 90°F. If you have a humidistat, the attic fan turns on at 70% humidity. What is a humidistat and why would I need one? AT. In certain areas, an attic can become very humid.
Moisture in the attic can condense and cause attic leaks. With more than 70% humidity, the humidistat turns on the attic fan to vent moisture no matter the season. Where is the best place to locate an attic fan in the attic? AT. The exact location of the fan doesn't matter at all.
The important thing is the location of the entrance grilles. Ventilation grilles should cause as much cross-flow through the attic as possible. What color do attic fans come in? AT. Jet Fan Attic fans come in natural aluminum color.
Feel free to paint the dome to match your home. Will the roof leak after installation? AT. No, the fan has a one-piece heavy metal flash. The flashing fits under the roof tiles and is placed over the tiles below.
Attic frame beams are only 15″ (or any gap) apart, will the attic fan fit? AT. A Jet Fan attic fan is installed in the ceiling and does not go into the attic. The hole cut out for the attic fan is usually between the rafters. How much money can I expect to save? AT.
The exact savings depend on the style of the house. In general, the more roof area directly under the attic a house has, the more you can save. Savings after fan cost will be realized in any home in one or two seasons along with increased comfort. What is a whole-house fan? AT.
Sometimes fans throughout the house are called fans. However, the whole-house fan is a completely different concept. Fans throughout the house draw air through the windows of the house and blow warm air out of the house through the attic. Of course, a whole-house fan would never be used concurrently with an air conditioner.
I have a fan for the whole house, do I need an attic fan? AT. We recommend this, since you do not operate the fan in the whole house during very hot days, when you just need to turn on the air conditioner and keep all the windows closed to prevent the hot summer air from entering. Your attic will still heat up, so venting the extremely hot attic air will need to be vented. Do not use the whole-house fan, as it will blow cold air from your home into the attic.
Also, you should NEVER run the whole-house fan without opening the windows to feed the need for whole-house fan airflow. An attic fan can be used to cool your living space any time the outside air is cooler than the air in your home. A Haas certified electrician & Sons can install an attic fan in your home that will increase your comfort, lower your utility bills, and extend the life of your roofing materials. Attic Projects' team of professionals offers several attic services that increase the comfort and energy efficiency of your home.
Some attic fans are designed with thermostats and turn on automatically when the air reaches a certain temperature. This is because you are drawing air out of your attic, which is the same as the air you draw into the attic. Attic fans are easy to use as long as they are properly installed and there is easy access to the operating switch or dial. During winter, the attic fan thermostat should be adjusted below freezing point to prevent ice from building up on the roof.
Often, attic fans are equipped with thermometers and hygrometer switches (a hygrometer measures humidity). Most other home problems that could be solved with attic fans are best solved with better insulation and air sealing. Running attic fans on the right schedule improves the efficiency of the ventilation system by providing a more comfortable and energy efficient home. Calculating the volume of your attic is a process that varies depending on the type of attic you have.
For example, if the air conditioner thermostat is set to 74 degrees, the attic fan could be set to 75 degrees. No matter where you live, you can take advantage of the benefits of an attic fan to help make your home more comfortable. . .