A Turbine Roof Ventilator is a type of ventilating fan that can be installed in the roof of a building. It is designed to draw exhaust, stale air or fumes from indoor areas and replace it with fresh air from outside. The turbine roof ventilator consists of a finned steel dome housing mounted atop an enclosed motor, which rotates a vane shape to direct airflow up through the building. In doing so, it helps reduce temperatures inside the building and improves air quality by removing pollutants, thus improving conditions for occupants.