The thin roof louver vent refers to the ventilation product with relatively low height. The product skeleton of the roof louver vent is formed by pressing profiles and adopts modular unit combination, which is convenient for standardized production and installation. The low-profile ventilator has good physical and mechanical properties. Its characteristics are mainly light weight, small load on the roof, good wind resistance, suitable for different regions and plant structures, and the steel consumption is few.

The thin roof louver vent can be used as a natural smoke exhaust vent, which can be set in an open type or an open-close type. The difference between an open ventilated air building and an open-close roof smoke vent is that one has no valve plate and the other has a valve plate. The open smoke vents have no valve plate, which can realize the uninterrupted ventilation of the industrial plant for 24 hours, and create a smooth air circulation system for the factory area. The disadvantage is that the heat preservation function cannot be realized when the temperature is low. The open-close low-profile ventilator can be adjusted by the opening and closing of the valve plate. In the cold winter, the valve plate can be closed to realize the heat preservation of the workshop; and in the hot summer, the valve plate can be opened to realize air flow. Whether it is an open ventilation air building or a streamlined ventilation air building, a thin design can be used, so we can generally also call it a thin open ventilation air building and a thin open-close ventilation air building.

The thin ventilated air building does not need other auxiliary external forces to achieve natural smoke exhaust, because it incorporates this function in the design. Therefore, in actual use, such a ventilation building is very convenient and applicable, and in terms of cost, it is also lower than the streamlined ventilation building. It is an economical and cost-effective choice for roof ventilation equipment in industrial plants.