Gravity Ventilation

Gravity ventilators are used to equalize a building’s positive or negative pressure created by other fans in the system. These ventilators provide natural ventilation and are used for intake and relief applications. Twin City Fan offers both spun aluminum and hooded ventilators, featuring a low silhouette for low roof lines. Louvered penthouse ventilators are available when aesthetics are not an important factor and feature extruded aluminum louvers.