Do I Need A Solar Attic Fan

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.

Do i need a solar attic fan. 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. You will probably need two solar attic fans to get the results you want. However the utility of attic ventilation fans is actually quite a controversial topic. The ventilation that controls moisture from condensation and regulates the temperature in your attic relies on air circulation.

How an attic fan works. Solar powered attic vent fans usually don t move as many cubic feet of air per minute cfm as hardwired fans. Because what happens is attic fans are so strong that they actually reach down into the conditioned space of your house and they do that by using the wall cavities and where the outlets and pipes come through the walls as places where they draw air from the inside of your house it. You need that amount of air if not more to get any sort of cooling benefit from the fans.

Attic fans exhaust hot air from your attic to the outside. Do you need an attic fan if you have a ridge vent. An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic. In a properly.

But they re much easier to install since no wiring is needed. That means you will need to double up your investment in this area. Attic ventilation fans whether hard wired or powered by their own solar panels seem like a low cost and effective way to help keep your house cool. The downside of attic ventilation fans.

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. If your attic space is over 1 800 square feet you will need enough solar fans to move 8 000 cfm. Ok i would definitely not recommend an attic fan. Intense sunlight can create heat faster than one or two small fans can cool an area.

Purchasing an electric or solar attic fan may not provide the savings that homeowners expect. Installing roof ridge vents and more attic insulation are better options experts say. Good insulation reduces fan effectiveness.