Solar power is safer to use with an attic fan.
How much does an attic fan help.
The whole house fan is installed inside the attic between the living space and ceiling.
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.
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.
They also create zones of negative pressure that could pull the ac cooled air into the attic.
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.
If the attic fan increases the comfort level of the house it may be worth it.
Whole house fans work on the principle of removing the hot and humid air out of the house.
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.
Help your roof out.
Do not use mechanical means electric attic fans.
I always thought a solar attic roof fan would help remove some of the heat in our second floor.
It helps to cool your home temperatures and the attic by approximately 30 degrees.
If the attic fan keeps the house cool enough so that the owners leave the ac off there is almost certainly an energy benefit.
I feel like i m in a greenhouse.
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.
Venting a homes attic is a very important best building practices will say 50 at the ridge and 50 at the soffits unobstructed.
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.
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.
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.
An attic fan is installed on the slanted side of your roof or on one of the gable sides of your attic.
Even if it only ran late afternoon at the peak of heat until the sun set.
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.
However the utility of attic ventilation fans is actually quite a controversial topic.
The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows.
How an attic fan works.
The downside of attic ventilation fans.
Good insulation reduces fan effectiveness.
