The Ventamatic 12 in. standard internally braced wind turbine attic exhaust vent is designed to improve attic ventilation and help regulate temperature in your home. Made from durable galvanized steel with a mill finish, this attic exhaust vent features a co-polymer bearing system for quiet, smooth, and long-lasting operation. The adjustable design fits up to a 6/12 roof pitch, making it versatile for various roof types. Tested for durability and performance, this wind turbine vent withstands extreme temperatures and high winds, ensuring reliable attic ventilation year-round. The Ventamatic wind turbine exhaust vent requires adequate soffit intake vents and provides 432 sq in of net free area for optimal airflow. Each unit includes a base and riser for easy installation and comes with a limited lifetime warranty for peace of mind. Two turbines can ventilate up to 1,300 sq ft, making this attic exhaust vent an efficient solution for maintaining a comfortable and energy-efficient home environment. Choose Ventamatic for trusted performance and enhanced attic ventilation.