Attic Fan That Forces Air Out Of The Ridge Vent

Good insulation reduces fan effectiveness.

Attic fan that forces air out of the ridge vent.

However the utility of attic ventilation fans is actually quite a controversial topic. Since your solar vent fan only moves 500 cfm a third to half that of a typical hardwired attic vent fan it probably won t move enough air to reverse the action of the ridge vent. You ll see that they have these metal ridge vents that have a folded edge on one side of it. 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.

Best ventilation is open soffit venting to a open vented ridge vent. They don t let enough air out. Do not use mechanical means electric attic fans. Choosing a ridge vent or an attic fan.

Unlike ridge vents attic fans use electricity and need regular maintenance to keep working properly. Electric attic fans however often increase energy consumption and cancel out any savings unless the attic is not insulated at all. An attic fan is an active system that actually forces air out. Ridge vents do not always provide the proper ventilation in some homes.

The effect of ridge vents for the roof depends upon the energy efficient nature of the structure. Attic fans can also make a lot of noise. The certainteed ridge vents the company s called air vent or the brand is called air vent. 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.

In a properly designed passive system air enters through the soffit vents rises by convection in the attic and exits through the vents in the roof or gables. More than 50 of the attic fans i see do not work and have current still live to the motor. Fans are needed only when there isn. When you are deciding between a ridge vent or an attic fan consider the needs of the attic.

The downside of attic ventilation fans. Ridge vent must me installed per the manufactures instructions. One of the leading causes for fires. 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.

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.