I ambled around the roof shooting wd 40 specialist spray stay gel lubricant into all the vents getting them spinning smooth and easy.
Roof turbine vents not spinning.
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.
They sell foam channels you can staple to the underside of the room to allow for airflow while still allowing insulation to be installed.
In fact when i was headed to the last vent i noticed the the others were spinning on their own quietly with only the slightest hint of wind wafting by.
Examine the turbine from the exterior from the roof.
Inspect your turbine vent and make sure the top spinning portion is securely anchored to the standpipe using sheet metal screws.
This is a bad thing because it blocks the air flow.
Climb up into your attic and look at the vents from the inside.
If they spin freely but just sit there when on your roof i d say they aren t level.
The popular ridge and soffit ventilation systems and the traditional metal pot vents are also passive ventilation systems.
The faster it spins the more air it exhausts.
You can usually adjust the level by turning the turbine body.
A turbine may fail to spin if the bearings become rusty or.
If the vents are blocked by insulation boxes or.
If the flashing is loose against the roof secure it with.
My attic turbines are not turning step 1.