The greenhouse project is a light-emitting building. Therefore, it is necessary to have a good light transmission effect when constructing a greenhouse project. The light transmittance is one of the most basic indicators for evaluating the light transmission performance of a greenhouse. The light transmittance is the percentage of the amount of light that penetrates into the greenhouse and the amount of outdoor light. The light transmittance of the greenhouse is affected by the light transmittance of the light-transmitting cover material of the greenhouse and the shadow rate of the greenhouse skeleton. Moreover, the light transmittance of the greenhouse also changes at any time with the different angles of solar radiation in different seasons. Greenhouse light transmittance has become a direct influence on crop growth and selection of crop varieties.

        Greenhouse engineering should pay attention to the insulation performance, improve the insulation performance of the greenhouse, and reduce energy consumption, which is the most direct means to improve the production efficiency of the greenhouse. The insulation ratio of a greenhouse is a basic indicator for measuring the insulation performance of a greenhouse. Greenhouse insulation ratio refers to the ratio of the area covered by the transparent material of the greenhouse with a small thermal resistance and the area covered by the greenhouse envelope structure with a large thermal resistance. The larger the insulation ratio, the better the insulation performance of the greenhouse.

        Greenhouse engineering must consider its durability. Greenhouse durability is affected by factors such as the aging resistance of greenhouse materials and the carrying capacity of the main structure of the greenhouse. In addition to its own strength, the durability of light-transmitting materials is also manifested in the fact that the light transmittance of the material continuously decreases with time, and the degree of attenuation of the light transmittance is a decisive factor affecting the service life of the light-transmitting material. Due to the long-term operation of the greenhouse in a high temperature and high humidity environment, the surface corrosion of components has become one of the important factors affecting the service life of the greenhouse.