Attic Gable Fan Sizing

However the utility of attic ventilation fans is actually quite a controversial topic.

Attic gable fan sizing.

Attic fan size calculation attic fan size cfm 0 7 x sq ft area of the attic formula 1 the size of an attic fan is calculated in terms of cfm. Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space. How to size solar attic exhaust vent fans so we developed our solar powered attic fan sizer calculator. Most manufacturers will provide you with the maximum attic size for your fan model.

Temp 92 f at 5pm. Best bang for the buck. 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. During workdays would leave air conditioner off when leaving in the morning.

Good insulation reduces fan effectiveness. How to pick the best attic fan for your gable vent. Cfm cubic feet per minute is a measure of the amount of air the fan moves in a minute. After attic fan installation ac still off during day.

For a single story house this is usually the same as the square footage of the house itself plus any attached garage area. Example 20 wide by 50 long attic. 20 x 50 1 000 sq. Temp 84f at 5pm.

Help determine optimal sizing of solar attic fans. This was observed on numerous days following the installation. To determine the size of your attic multiply the width by the length of the attic floor in feet. The attic fan kept my house cooler by 8f compared to pre fan installation days.

When buying an attic fan look at the cfm rating cfm is the amount of air that is stirred in sixty seconds. Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge. Iliving gable mount attic ventilator fan if you ve got access to your attic s gables iliving s gable mount fan is a great option for moving some air without.