Choosing a ridge vent or an attic fan.
Ridge vent vs attic fan.
The house currently has ridge vents and i am wondering if installing a.
Scott in georgia is on the line with a question about attic ventilation.
Joe blanco posted in general questions on february 21 2016 01 26am is there any advantage in using an attic fan comparing to ridge vents.
My house is in zone 6 and highs are usually in the 80s during summer only had three 90 days last year.
Now for the other sections of roof and attic that are again separated from that garage space there you should use a continuous ridge vent.
Without any air movement temperatures in the attic soar in summer and plunge in winter.
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.
And the temperature in the attic gets to be somewhere around 115 to120 degrees during the summer and it gets pretty warm.
At one point on the roof it is about 30 from the soffit to the ridge with a 2 12 pitch.
When you are deciding between a ridge vent or an attic fan consider the needs of the attic.
Well i have a house that has a ridge vent in it.
And then the vent fits on top of that.
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.
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If you have suitable intake venting a ridge vent might be a better choice while larger attics and those with poor ventilation might be better served by an attic fan.
And be careful with the type of vent that you.
Make sure the ridge line is cut open at least an inch to an inch and a half so you have a good wide gap at the top.
Without ventilation unfinished attic spaces can end up having stagnant air.