How Much Will An Attic Fan Cool My House

The downside of attic ventilation fans.

How much will an attic fan cool my house. The attic fan kept my house cooler by 8f compared to pre fan installation days. When an attic fan is operating during the hottest summer days the temperature in your attic can drop by as much as 50 degrees. Attic fans exhaust hot air from your attic to the outside. Of vent for every 300 sq.

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

Help your roof out. Temp 92 f at 5pm. 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 was observed on numerous days following the installation.

Low cfm similar to a bathroom vent 300cfm and only in the hot spots basically by adding an inline ducting fan to the return ducts for the hotspot rooms. In order to facilitate this exchange of warm and cool air the general rule of thumb suggests installing at least 1 sq. 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. If the attic fan increases the comfort level of the house it may be worth it.

Venting a homes attic is a very important best building practices will say 50 at the ridge and 50 at the soffits unobstructed. An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic. During workdays would leave air conditioner off when leaving in the morning. I believe the attic fan was just over 400.

If the attic fan keeps the house cool enough so that the owners leave the ac off there is almost certainly an energy benefit. Its temperature controlled so when it hits 95 degrees in the attic it turns on long enough to cool it down again. 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. How an attic fan works.