Sawtooth roof greenhouse, this design is catered for use in high temperature areas. In high temperature areas, it is often accompanied by rainy weather. The design of the sawtooth roof actually achieves a natural ventilation system through the sawtooth shape. The natural ventilation system is vertical. When it rains, it can maintain ventilation without closing the vents. Because the zigzag shape is vertical, it effectively prevents rainwater from entering the greenhouse and damaging plants, vegetables, flowers, etc. Therefore, this kind of greenhouse is widely used in tropical areas. Also named Tropical Greenhouse.