All things being equal wind driven turbine vents also known as a whirlybird roof vent do move more air than flat vents but only when the wind blows.
Turbine roof vent not spinning.
As soon as it starts to spin it vacuums air out of your attic.
Wind driven roof vents will pull more air from the attic but only when the wind is blowing.
Place the stepladder under the attic access space.
If the flashing is loose against the roof secure it with.
Climb up into your attic and look at the vents from the inside.
Inspect your turbine vent and make sure the top spinning portion is securely anchored to the standpipe using sheet metal screws.
The popular ridge and soffit ventilation systems and the traditional metal pot vents are also passive ventilation systems.
It was very annoying.
This is a bad thing because it blocks the air flow.
Find the noisy turbine and apply the lubricant to the moving parts of the turbine.
It s not uncommon for insulation to have been jammed tight out to the edge of the roof.
These are located in the track where the pipe coming out of the roof meets the spinning part of the vent.
You can usually adjust the level by turning the turbine body.
If they spin freely but just sit there when on your roof i d say they aren t level.
A turbine vent is a passive ventilation device.
Our turbine roof vents whirlybirds were really noisy and had some rattling that was causing some vibration in the house.
Clear away any debris or insulation blocking the vents to re activate the spinning turbine.
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Be sure to lubricate the bearings.
Since they are only 4 years old i m guessing they were replacements so maybe the wrong ones were installed not all turbines work with all roof pitches or these just haven t been leveled correctly.
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Flat roof vents have no moving parts to break or squeak but don t vent as much air as wind driven vents.
They sell foam channels you can staple to the underside of the room to allow for airflow while still allowing insulation to be installed.
Find roof turbine vents at lowe s today.
