Fabricated Rooftop Air Ventilator is made of rotating vanes of the turbo vent which creates low pressures zone due to the centrifugal force. The Rooftop Air Ventilator is application specific in design and accurate in dimension. The Rooftop Air Ventilator is strong and rigid in construction and requires minimal maintenance. Fabricated Rooftop Air Ventilator can be custom made in various shapes and sizes as per specific requirements.