Roof exhaust fan helps to extend the life of a building roof by providing proper airflow. It regulates heat and moisture in the attic. The fan must be weather resistant and suitable for your installation type: warehouse ventilation, commercial range hood exhaust, general ventilation, equipment room ventilation, and so on. There are many types of exhaust fans available: turbine; powered direct or belt drive; solar; roof vent caps for natural ventilation systems. Our review will help you to choose the right one.
Turbine Roof Exhaust Fan
A turbine ventilator is a passive ventilation device. It spins with the slightest breeze and as soon as it starts to spin, it vacuums air out of your attic. The stronger is the wind, the faster turbine spins and the more air it exhausts. A small 12″ turbine with a wind speed of 5 mph removes about 350 cubic feet of air per minute. And it works for free, is silent in almost all instances, and ensures long life and no maintenance.
Lomanco Whirlybird Turbine Ventilator comes in black/silver/brown color, reduces winter ice build-up, excessive summer heat, and energy bills; withstands winds up to 147 mph. Rolled vane edges deflect water. The ventilator is covered with lifetime warranty
The Whirlybird is externally mounted and the large flashing makes installation easy. When installed with adequate intake ventilation, it helps to reduce heat effectively. No rain enters, but sometimes a little snow gets in through the openings.
12 inches is the base diameter of the hole in the roof, the ball is bigger. You can install the turbine on a pitched roof, the top half can be turned to accommodate any pitch. It comes with a simple guide so you can adjust it to the right angle.
Empire Ventilation Galvanized Turbine Ventilator is a dependable rotary appliance that works continuously, automatically, and silently without any maintenance costs. Ventilators are aluminum braced.
Large sizes are steel braced for the purpose of additional strength. The turbine is precision built and equipped with ball bearings, it is extremely sensitive and wearable. Upper bearings are bronze oilless. No servicing or adjusting is required.
Powered Roof Exhaust Fans
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Broan 355BK Roof Mount 120-Volt Powered Attic Ventilator, 1200 CFM, Black Dome