How Much Will An Attic Fan Cool My House

The downside of attic ventilation fans.

How much will an attic fan cool my house. Good insulation reduces fan effectiveness. How an attic fan works. I believe the attic fan was just over 400. However the utility of attic ventilation fans is actually quite a controversial topic.

In order to facilitate this exchange of warm and cool air the general rule of thumb suggests installing at least 1 sq. 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. My idea is to vent the build up of hot air that has risen to the ceiling in the hotspot rooms into the attic so that air from cooler parts of the house can move in. Venting a homes attic is a very important best building practices will say 50 at the ridge and 50 at the soffits unobstructed.

Help your roof out. Its temperature controlled so when it hits 95 degrees in the attic it turns on long enough to cool it down again. The attic fan kept my house cooler by 8f compared to pre fan installation days. Attic fans exhaust hot air from your attic to the outside.

During workdays would leave air conditioner off when leaving in the morning. When an attic fan is operating during the hottest summer days the temperature in your attic can drop by as much as 50 degrees. Yes installing an attic fan raises the electric bill. Whole house fans should provide houses with 3 to 6 air changes per hour varies with climate floor plan etc check with a professional to determine what is appropriate for your home.

Of vent for every 300 sq. As a certified licensed home inspector it is not correct to say too much ventilation is bad for an attic unless rain moisture is getting in. It provides good attic ventilation in addition to whole house cooling. An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic.

This was observed on numerous days following the installation. If the attic fan increases the comfort level of the house it may be worth it. Temp 92 f at 5pm. 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.