Do not use mechanical means electric attic fans.
Attic fan that forces air out of the ridge vent.
Unlike ridge vents attic fans use electricity and need regular maintenance to keep working properly.
When you are deciding between a ridge vent or an attic fan consider the needs of the attic.
More than 50 of the attic fans i see do not work and have current still live to the motor.
One of the leading causes for fires.
You ll be able to move air throughout the attic without the use of fans or turbines when enough space is given to this vent design.
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.
Best ventilation is open soffit venting to a open vented ridge vent.
Ridge vent must me installed per the manufactures instructions.
The downside of attic ventilation fans.
The effect of ridge vents for the roof depends upon the energy efficient nature of the structure.
Ridge vents do not always provide the proper ventilation in some homes.
Good insulation reduces fan effectiveness.
Air leaks by installing more roof vents such as a ridge vent you increase the possibility that most attic air will come from outside says tim carter a residential contractor in cincinnati.
Electric attic fans however often increase energy consumption and cancel out any savings unless the attic is not insulated at all.
List of the cons of roof ridge vents.
So it might be worth looking at the type of ridge vent that you have.
They don t let enough air out.
Attic fans can also make a lot of noise.
However the utility of attic ventilation fans is actually quite a controversial topic.
An attic fan is an active system that actually forces air out.
Fans are needed only when there isn.
You ll see that they have these metal ridge vents that have a folded edge on one side of it.
Choosing a ridge vent or an attic fan.
The certainteed ridge vents the company s called air vent or the brand is called air vent.
Also since the fan is powered by the sun it should turn off when the sky is overcast during a storm which will keep it from drawing rain into the attic.