Roofing Turbo air ventilator A roofing turbo air ventilator, also known as a roof turbine ventilator or simply a roof ventilator, is a device installed on the roof of a building to provide natural ventilation and air circulation. It is designed to harness the natural wind energy and convert it into an upward draft of air to remove stale and hot air from the building's interior. Here's how a roofing turbo air ventilator typically works: Design: The ventilator consists of a rotating turbine head and a base. The turbine head has specially designed vanes or blades that catch the wind and rotate, creating a suction effect. Wind Energy: As the wind blows across the ventilator, it causes the turbine head to spin. The faster the wind speed, the faster the rotation of the turbine. Air Extraction: As the turbine rotates, it creates a low-pressure zone within the ventilator. This low-pressure zone draws out the hot and stale air from the building through vents or ducts connected to the ventilator.