How Does A Solar Attic Fan Work

This air is then exhausted through the fan to the outside.

How does a solar attic fan work.

Typically it will reduce the work your air conditioner will have to do to cool your house. Attic fans exhaust hot air from your attic to the outside. Fresh air is pulled in from your soffits and or roof vent creating a draft through your attic. How an attic fan works.

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. How a solar powered attic fan works in the winter in the colder winter months warm moist air rises from inside your home and collides with the cold underside of the roof. Once the solar powered attic fan is up on the roof the sun works its magic to power the fan. The problem with this design as argued by energy professionals is that attic fans also pull the conditioned air from your home into the attic.

Air circulation moves hot air out of attic space. But they re much easier to install since no wiring is needed. If a cloud blocks the sunlight the fans slow or stop. For the attic fans to work at peak efficiency they need to be on a south facing roof slope if you live in the northern hemisphere.

Solar attic fans can be installed in just 15 minutes. Heat builds inside an improperly vented attic the sun beats down on a homes roof and heats up the enclosed attic. Solar powered attic vent fans usually don t move as many cubic feet of air per minute cfm as hardwired fans. Yellowblue solar powered attic fans provide circulation that prevents the moist air from condensing on the surface keeping your attic cooler and drier.

Ideally this will lower the high temperatures that have built up in your attic. A solar attic fan harnesses the power of the sun to run its motor without using electricity. Solar attic fans run on solar power. They exhaust the hot heated air out of the attic and replace it with cold air from outside.