How Much Does An Attic Fan Help

An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic.

How much does an attic fan help.

This makes your whole home cooler and could allow you to turn up your air conditioner s thermostat by as much as 10 degrees while still maintaining your comfort. However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the attic. Do not use mechanical means electric attic fans. However the utility of attic ventilation fans is actually quite a controversial topic.

We have an exhaust fan in the bathroom but it doesn t do much of anything. The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows. Getting ready in that bathroom is unbearable. If the attic fan keeps the house cool enough so that the owners leave the ac off there is almost certainly an energy benefit.

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. Solar power is safer to use with an attic fan. The safety and effectiveness of an attic fan is a subject that is hotly debated but line powered products usually cost more to operate than they can produce in savings during the summer. It helps to cool your home temperatures and the attic by approximately 30 degrees.

One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home. How an attic fan works. If the attic fan increases the comfort level of the house it may be worth it. The whole house fan is installed inside the attic between the living space and ceiling.

They also create zones of negative pressure that could pull the ac cooled air into the attic. 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. Even if it only ran late afternoon at the peak of heat until the sun set. Whole house fans work on the principle of removing the hot and humid air out of the house.

There are a number of reasons. Of course if the attic fan isn t working correctly and is running all year long that would be a significant problem. The downside of attic ventilation fans. Attic fan ventilation attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents soffit and gable and pushing hot air to the outside.

I always thought a solar attic roof fan would help remove some of the heat in our second floor. Good insulation reduces fan effectiveness. Help your roof out. Attic fans exhaust hot air from your attic to the outside.

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.