Natural ventilation system installed longitudinally on the ridge of the roof is called ridge ventilator. It is characterized by relatively large size, high ventilation efficiency and wide applicability. There are also different smoke vent skylights. Mcwell summarizes several common roof vents.

1. Classification according to the shape of the roof vents

Roof smoke vent can be divided into low-profile ventilator and arched continuous rooflight according to their shape. Light weight natural ventilator has low wind resistance and good wind resistance. They are often selected by high frequency in many coastal typhoon areas. Arched continuous rooflight has low wind resistance and integrated lighting. It is integrated with ventilation and smoke extraction. It has good strength, quick installation, beautiful appearance, good ventilation and exhaust effect. It is suitable for steel structure workshops in various industries such as metallurgical industry,

boiler plant, papermaking and printing.

2. Classification according to whether the roof vent is equipped with a valve plate

The ridge ventilator can be divided into open roof ridge skylights and open-closed roof ridge skylights according to whether valve plate is installed. The natural ventilator installed with valve plate is called the open-close roof ridge skylight. When the valve plate is closed, it can achieve better rainproof performance. For the extreme cold weather in the north, the valve plate can also play a good heat preservation effect when the valve plate is closed; It is an economical roof ridge ventilating skylight without installing a valve plate, which can realize the uninterrupted natural ventilation and smoke exhaust of the factory building for 24 hours.