The ridge ventilator's valve plate is mainly composed of two parts, one is the skeleton of the valve plate, another one is the baffle of the valve plate. The skeleton of the valve plate is generally made of hot-dip galvanized hollow steel, and the baffle of the smoke vent rooflight is made of FRP lighting board. The size of the valve plate is mainly determined by the skeleton of the ridge ventilator, and the shape of the valve plate is rectangular. When the size of the smoke vents' valve plate is determined, the steel used for it needs to be cut. In addition, the cut steel must be punched.

The cut steel also needs to be welded to turn the scattered steel into a whole, just like the skeleton of smoke vent rooflight. After the welding is completed, the welding port of the valve plate skeleton must be trimmed, and the valve plate after the foreign currency must be trimmed. The skeleton also needs to be painted outdoors. The purpose of painting the valve plate skeleton is on the one hand to make it more beautiful, and on the other hand, it can also play a good role in preventing corrosion.

Steel roof ridge vent with valve panels can automatically adjust the opening and closing of the skylights according to the season and other factors. For example, in the cold winter in the north, clients can install open-closing roof smoke vent with valve panels to close the valve panels. At that time, the heat preservation of the working space in the factory can be realized, and the ventilation of the factory can be realized when the valve plate is opened, which is very convenient and practical.