In large-scale greenhouse planting, glass greenhouses and PC sheet greenhouses are the two most mainstream high-end facilities. They differ significantly in cost input, service life and planting effect, which directly affect the long-term income and operational efficiency of the farm. From a practical perspective, this article comprehensively compares the core differences between the two to help growers and investors make accurate selections.
In terms of cost, the initial investment of glass greenhouses is higher, with a cost of about 200-350 yuan per square meter. The main costs are concentrated on tempered glass, steel structures and sealing processes; the cost of PC sheet greenhouses is relatively affordable, 120-220 yuan per square meter. The PC sheet is light in weight, which can reduce the cost of steel structures, and is easy to install, saving construction costs. However, in the long run, the maintenance cost of glass greenhouses is lower, and PC sheets need to be replaced every 5-8 years, increasing subsequent investment.
In terms of lifespan, glass greenhouses have obvious advantages. High-quality tempered glass can have a service life of 20-30 years, with impact resistance, aging resistance and not easy to deform; the service life of PC sheets is about 10-15 years. Although it has an anti-ultraviolet coating, it is prone to yellowing and brittleness when exposed to the outdoors for a long time, affecting light transmittance and structural stability, and requiring regular maintenance and replacement.
In terms of planting effect, the light transmittance of glass greenhouses is as high as more than 90%, with uniform light, which is suitable for growing crops with high light requirements (such as tomatoes and cucumbers). It also has good thermal insulation and lower energy consumption in winter; the light transmittance of PC sheets is about 80%-85%, with soft light, which can avoid crop burns by strong light. Its heat insulation performance is better than that of glass, with lower cooling costs in summer, suitable for leafy vegetables, herbs and other crops.
In summary, if you pursue long-term stable and high-yield planting with sufficient budget, glass greenhouses are preferred; if the budget is limited, short-term benefits are emphasized, or crops with moderate light requirements are planted, PC sheet greenhouses are more cost-effective. The two are suitable for different scenarios, and the core is to make a reasonable choice based on your own budget, crop types and operation cycle.
