How do you pick the right attic vent.
Are ridge vents to get rid of attic heat.
Best ventilation is open soffit venting to a open vented ridge vent.
A ridge vent is similar to a screen and allows heat to escape up and out of the attic.
Breezes over the top of the ridge vent cover create a low pressure area to draw even more air through the attic.
Insulation at least r 38 or more is there for heating and.
The ridge vent is at the roof peak where hot attic air is least dense so it naturally flows up and out.
Combining an attic power vent fan with a ridge vent is usually not recommended because.
Ridge vent must me installed per the manufactures instructions.
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.
A ridge vent runs across the top of the roof s peak.
It can do both.
It is placed at the highest point of your roof so that the hot air rises.
This type of vent runs along the entire ridge of your roof.
The first step is to check out this 60 second video and learn about the 300 1 rule the difference between intake and exhaust ventilation and why proper ventilation is so important to get right to help calculate your attic ventilation needs visit gaf ventilation calculator.
It could reverse the natural flow of hot air out the ridge vent.
We closed off eliminated the ridge vents and installed powered vents on thermostats.
Without any air movement temperatures in the attic soar in summer and plunge in winter.
One last thought attic ventilation is not there to get rid of heat it is there to get rid of excess moisture accumulating from the home.
However as a very old builder 70 years i have known cases where roof mounted attic fans have helped tremendously where the roof is a full hip and the ratio of ridge vents to soffit vents was way out of whack.
This will keep your attic cooler which will reduce the cooling load on your home.
I stapled extra attic foil over my gable vents to block them.
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.
The cool air is drawn in the soffit vents.
Unlike turbines this venting style does not have any moving parts.