Designed to maintain steady ventilation to attics these devices are necessary to prevent mold and excessive heat buildup under the roof.
Roof turbine noise.
Here s how i did it.
Those are rather silent.
On 2019 01 05 by 007flight.
Over time these vents can become squeaky from moisture and age related natural degradation.
Unfortunately when this happens the only solution is to remove the debris which may involve climbing onto the roof.
If yours is howling enough to dryve you mad or keep you awake it s time for a different and better attic ventilation system such as continuous soffit intake vents and ridge exhaust vent.
I climbed up to the roof to quiet them down with a long lasting wd 40 specialist product.
This can sometimes create a whistling noise as the turbine rotates.
Turbine vents are those ubiquitous devices found on almost every residential rooftop.
Our spinning rooftop turbine vents were squeaking and squealing in the wind.
There are other less common causes of a squeaking roof turbine such as debris getting stuck in the fins.
I am guessing that by whirlybird you refer to a turbine type roof exhaust vent that is spun by wind.