Self Drilling Stainless Steel Screw

A roof turbo ventilator is a wind-driven device installed on the roof of buildings to improve natural ventilation. It helps remove hot air, smoke, fumes, and stale air from inside without using electricity.

Description
A roof turbo ventilator (also called a whirlybird ventilator) consists of a dome-shaped head with multiple curved vanes mounted on a vertical shaft. When wind flows over it or even with slight air pressure differences, it spins continuously.

How it works
Wind hits the curved blades and causes rotation.
The rotation creates a low-pressure zone inside the ventilator.
Hot and stale air from inside the building is drawn out upward.
Fresh air enters through windows or openings below.

This process is based on Bernoulli's Principle, where faster airflow reduces pressure and pulls air out.

Common Uses
Factories and warehouses
Commercial kitchens
Industrial sheds
Residential attics

Advantages
No electricity required (eco-friendly)
Low maintenance
Reduces indoor temperature and humidity
Removes smoke, dust, and gases
Long lifespan (usually made of aluminum or stainless steel)

Limitations
Performance depends on wind availability
Less effective in tightly sealed buildings
May require multiple units for large spaces

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