As the name suggests, the roof ventilator is a natural ventilator installed on the roof of a factory building. Therefore, the finished roof ventilator has a wide ventilation channel, so it has a large ventilation volume, fast exhaust ventilation frequency, and because the FRP rainproof and light-transmitting panel used has a light transmittance of up to 80%, it also has excellent lighting performance. Due to the large size and heavy weight of the steel structure roof ventilator, the construction workers installing the base must not only follow safety regulations but also ensure that the foundation is solid enough to allow the base to fully bear the weight of the ventilator.