The protective plate of the ridge ventilator is what we usually call the outer plate/outer protective plate, and generally uses color profiled steel as the material (that is, color steel plate). The outer guard plate is the first impression of the entire roof ridge vent. It is also the intuitive appearance of the ridge ventilator. It will be affected by natural weather all the year round. Therefore, it needs to have anti-corrosion functions in order to be able to face the harsh natural conditions. The length of the outer guard plate of the smoke vent rooflight needs to be determined according to the distance between the streamlined staging frameworks, and its width should be determined according to the external dimensions of the framework. The outer guard plate must wrap the frame, and the smoke vent rooflight must be wrapped tightly and solidly to achieve an excellent windproof effect. If there is a little gap, it will also have a great impact on the windproof effect of the ridge ventilator, which will also affect the replacement of the metal building ridge vents. 

When the width of the roof ridge vent is determined, the steel required for the factory area is pulled and cut on the shearing machine. After the cutting is completed, use the color steel plate pressing machine to press and shape, so that the color steel plate has raised parts, so that it can have better strength. After the outer guard plate is pressed into a shape, a hole is drilled on its side to prepare for the subsequent installation work.