Roof ventilation fans utilize the principle of natural air convection to accelerate and transform any parallel airflow into a vertical upward airflow, thereby improving indoor ventilation. They require no electricity, operate silently, and can run continuously, removing heat, moisture, and stale air from indoor spaces. They have been popular in developed countries for decades, and in China, with the proliferation of steel-structured buildings, the installation and use of non-powered roof ventilation fans is also increasing.
The most basic function is to achieve air circulation and ventilation. When there is a large temperature difference between indoors and outdoors, and no direct ventilation, roof ventilation fans can forcefully exhaust indoor air while simultaneously drawing in fresh outdoor air, achieving air circulation and cooling.
Roof ventilators are ventilation devices installed on the roofs of buildings, primarily used for ventilation, smoke extraction, cooling, and air exchange in industrial plants, warehouses, commercial buildings, and residential buildings. Their main working principle is to promote indoor and outdoor air exchange through mechanical or natural power to improve air quality, regulate temperature, and remove harmful gases or smoke.
