The advantage of growing plants in a greenhouse is that you can control all the environmental factors, such as airflow, temperature, and even humidity levels in the air.
During summer, as well as other months in warmer climates, keeping your greenhouse’s indoor air cool is a key aspect of successful plant growth.
When controlling greenhouse temperatures, directing the airflow in and out of your structure creates most of the cooling effect. There are two ways of ventilating greenhouses. The ideal method for your particular setup depends on the size of your greenhouse and your desire to save either money or time. The two basic ventilation types are natural ventilation and fan ventilation. Natural ventilation depends on a few basic scientific principles. Heat rises, and air moves. Windows with movable louvers are set into the wall close to your roof at the ends of your greenhouse. The warm air in your greenhouse rises and stays near the open windows. The outside wind pushes cooler outdoor air indoors, which in turn pushes the warmer air from inside of your greenhouse toward your outside space. On the other hand, the fan ventilation depends on electric greenhouse fans to move your hot inside air outside. They can be set into the ends of your wall or even on the rooftop, so long as it has moveable panels or spaces to accommodate the breeze. When choosing the ideal ventilation type for your greenhouse, compare the two types. Natural ventilation will require you to visit your greenhouse multiple times a day to check whether the louvers need to be closed or opened. On the other hand, fan ventilation can be made completely automatic.