Just hot air rising out of one will make it spin.
Roof turbines not turning.
Crooked turbine vent small.
If the vent is rusted it may be sticking and not turning as it should and this can lead to water infiltration.
Do you see anything else that s wrong in the photo.
You can usually adjust the level by turning the turbine body.
This is a standard turbine vent.
The maximum roof pitch is almost always printed on the box label.
Do i have a low pressure system.
You may have to replace the turbine with an electric fan type of ventilator.
If the wind is blowing and catches the fins then the turbines act like giant vacuum pumps sucking hundreds of cubic feet of hot air out of an attic per minute.
If yours aren t turning it s time to lubricate or replace entirely.
The new turbine needs hot air to flow out to turn the impellers.
I ve gone on the roof and white lithium greased both and but a level on them and they are pretty close to level.
There may also be something near or in the vent that is stopping it from turning.
If they spin freely but just sit there when on your roof i d say they aren t level.
2 of my 3 turbine vents on my roof won t turn unless there s a stronger wind.
The turbines are adjustable so that the spinning part is level even though the roof is slanted.
My attic turbines are not turning step 1.
Climb up into your attic and look at the vents from the inside.
Nothing is more bothersome in the middle of a.
The faster the wind speed the faster the turbine rotates.
It doesn t take much wind to turn your turbine roof vents.
Examine the turbine from the exterior from the roof.
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.
In the photo below the vent on the left wasn t level.
If the vents are blocked by insulation boxes or.
The one thing i ll mention is that turbine vents need to be installed perfectly level.
When they re not installed level they don t turn.
A turbine may fail to spin if the bearings become rusty or.
Walking around my soffits yes i do have soffit vents and from the attic i can see sunlight in.
The hot air is exiting the roof through the louvers at each end of the roof as they were designed to do.