With any attic ventilation system the attic can be 20 degrees hotter than outside.
Should i have a ridge vent and attic fans.
Unlike ridge vents attic fans use electricity and need regular maintenance to keep working properly.
Most homes already have some passive attic venting built in.
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.
When you are deciding between a ridge vent or an attic fan consider the needs of the attic.
If you have a hip roof with very little ridge a power fan with both a thermostat and humidistat for both temperature and humidity should be installed with no ridge vent.
Scott in georgia is on the line with a question about attic ventilation.
Attic ventilation should protect the roof sheathing insulation and shingles from.
If you have few vents in your attic most of the air will be drawn from inside the house.
Choosing a ridge vent or an attic fan.
One of the leading causes for fires.
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Vents that run along the roof ridge are an alternative to those that exit through the roof decking or gables and if the ridge is long enough they may be the only roof vents.
Once inside the air heats up and rises higher ultimately exiting through venting at the roof s gables through ridge vents cut into the roof s apex or other vent holes in the roof.
More than 50 of the attic fans i see do not work and have current still live to the motor.
A fan may actually suck air conditioned air from your home into the attic.
So to help with some of the i.
Attic fans can also make a lot of noise.
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.
Best ventilation is open soffit venting to a open vented ridge vent.
Ridge vent must me installed per the manufactures instructions.
If you have suitable intake venting a ridge vent might be a better.
Cool air enters the attic through soffit vents in the eaves.
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.
Well i have a house that has a ridge vent in it.