Combining an attic power vent fan with a ridge vent is usually not recommended because.
Do attic fans work with ridge vents.
This air is then exhausted through the fan to the outside.
An attic fan is an active system that actually forces air out.
Instead of installing an attic fan carter recommends using ridge vents on your roof.
Attic fans can also make a lot of noise.
Fresh air is pulled in from your soffits and or roof vent creating a draft through your attic.
Unlike ridge vents attic fans use electricity and need regular maintenance to keep working properly.
Attic fans exhaust hot air from your attic to the outside.
Even if your roof already has ridge vents and plenty of ventilation built in it s a good idea to install gable fans or roof fans to help blow hot humid air out of the attic.
Ideally this will lower the high temperatures that have built up in your attic.
How an attic fan works.
Attic ventilation fans also tend to be quite energy efficient in terms of their own operation.
Ridge vents are a passive system simply allowing hot air to rise up through them rather than pushing it out as a fan does.
If air is drawn in through the ridge vent while it s raining it might pull rainwater in with it which could lead to leaking or mold in the attic.
It could reverse the natural flow of hot air out the ridge vent.
Choosing a ridge vent or an attic fan.
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.
The prevailing winds and the amount of shade your house gets will also affect your results.
The ridge vents allow for this moisture to escape so that you do not have a build up of this humid air threatening to cause damage to your roofing members and anything stored in your attic.
When you are deciding between a ridge vent or an attic fan consider the needs of the attic.