Do Solar Attic Fans Work At Night

Cold air is at the bottom and warm air is at the top.

Do solar attic fans work at night.

Solar attic fans work by pulling in the cold air from the soffits and pushing out the hot air that has accumulated at the top of the attic. You re a pretty clever guy to get the sun to do double duty. Building codes require homes to have a passive vent system. To determine the number of cubic feet per minute needed for a power vent fan multiply the number of square feet in your attic by 0 7.

If you have an upstairs bonus room or bedroom that gets uncomfortably hot in summer consider adding a solar powered fan to your attic. Attic fans exhaust hot air from your attic to the outside. You need the fans to be operating at full speed late in the day and into the evening to. Since your your attic has been kept cool during the day there is no need for the fan to operate at night.

It was almost magical to see the solar attic fan work. Solar attic fans work with your existing passive vents if you ve ever been in your attic you know just hot the space can get especially in summer months. It makes perfect sense to make the sun cool your attic space since it is the source of the problem in the first place. An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic.

Solar or pv fans run on sun power and pull superheated air out of your attic to be replaced by cooler outside air. How an attic fan works. As the sun gets lower in the sky when attic temperatures are at their greatest the fans slow down. This is basically how air naturally moves.

This reduces the amount of work your hvac system has to do to cool your upstairs living area. Solar powered attic vent fans usually don t move as many cubic feet of air per minute cfm as hardwired fans. Free fast bids. The sun beats down on the roof surface and heats up the stagnant air inside the attic.

But they re much easier to install since no wiring is needed. These fans are designed to remove excess heat from your attic which in theory is supposed to lessen the load on the air conditioning in your home. This feature helps extend the life of the motor. As the sun is beating down on your roof the sunrise solar attic fan is at work keeping the attic at a comfortable temperature.

Flat base solar attic fans sunrise.