Chongqing Qingcheng  Agricultural Science and Technology Co.,Ltd

Chongqing Qingcheng Agricultural Science and Technology Co.,Ltd

Strict Humidity Control is Essential in Greenhouse Construction

2026 02/27

Commercial Greenhouse are widely used in vegetable cultivation and production, and with rising living standards, the demand for off-season vegetables is increasing.
modern greenhouse for commercial use
As a key component of the "vegetable basket" project, Greenhouse construction and environmental control are becoming increasingly standardized.
Here, we'll explain why strict humidity control is crucial in Greenhouse construction and how to regulate it.
Greenhouse Humidity Changes: The plastic film provides a strong seal, hindering air exchange between the inside and outside of the greenhouse. Water vapor from soil and leaves is difficult to dissipate.
Therefore, humidity inside the greenhouse is high. During the day, with ventilation, the relative humidity inside the Greenhouse is 70-80%. On rainy days or after irrigation, it can reach over 90%.
The relative humidity inside the greenhouse decreases as temperature rises. When the humid air inside cools, it condenses into a water film or droplets that adhere to the inner and outer surfaces of the film or the plants.