If you decide to add more turbine vents to your roof be sure to buy ones that are aluminum.
Roof turbine vent stopped spinning.
The blockage will prevent the heat from escaping through the vents and that may be a reason why the vents are not spinning.
If they spin freely but just sit there when on your roof i d say they aren t level.
Be sure to lubricate the bearings.
Climb up into your attic and look at the vents from the inside.
Not all turbines will fit all roof pitches.
Place the stepladder under the attic access space.
These are located in the track where the pipe coming out of the roof meets the spinning part of the vent.
Put a roof turbine on that hole it starts spinning but it is blocking the flow of air to the outside not speeding it up.
These will not rust.
Climb up and take a good look at the turbine vents from the inside.
You can usually adjust the level by turning the turbine body.
I ambled around the roof shooting wd 40 specialist spray stay gel lubricant into all the vents getting them spinning smooth and easy.
The vents may have obstructions such as insulation or boxes or some other material.
In addition pay attention to the maximum roof pitch that will work with the turbines.
Find the noisy turbine and apply the lubricant to the moving parts of the turbine.
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.
If the vents are blocked by insulation boxes or other obstructions heat will not be able to escape through them and they will not spin.
It was very annoying.
Put a hole in the roof and the hot high pressure air will move outside to equilize pressure.
The turbines are adjustable so that the spinning part is level even though the roof is slanted.
If it did then it s as if you had some sort of a perpetual motion machine.
