The light transmission rate of film greenhouses, as greenhouses are light-collecting structures, the light transmission rate is a basic indicator for evaluating their light transmission. The light transmission rate refers to the percentage of light entering the greenhouse and the amount of light outside. The light transmission rate of a greenhouse is affected by the light transmission rate of the greenhouse covering material and the shading rate of the greenhouse frame, which varies with the angle of solar radiation at different seasons. The light transmission rate of the greenhouse is a direct factor influencing crop growth and the selection of crop varieties. Generally, plastic greenhouses have a light transmission rate of 50~60%, glass greenhouses range from 60~70%, and solar greenhouses can exceed 70%.

Durability is a critical factor to consider in greenhouse construction. The aging resistance of greenhouse materials and the load-bearing capacity of the main structure directly impact the greenhouse's durability. The longevity of film transparent materials, in addition to their inherent strength, is also manifested in the degradation of transmittance over time. The degree of transmittance decay is a decisive factor affecting the service life of transparent materials. The service life of a conventional steel structure greenhouse is approximately 15 years.