Roof turbine ventilators, commonly known as cyclones or whirlybirds, are unpowered ventilation devices designed to pull hot air, moisture, and stale fumes out of buildings naturally. [1, 2, 3]
Material: They are typically constructed from high-quality, weather-resistant materials like 304 stainless steel or aluminum.
Mechanism: They operate using wind energy and natural convection. [1, 2, 3]