A simple multi-span greenhouse is a basic greenhouse facility formed by connecting multiple individual greenhouse units via gutters. Its core structure includes a hot-dip galvanized steel pipe frame, single or double-layer translucent greenhouse film, basic ventilation openings (such as top and side film roll-up openings), and a simple drainage system. The frame adopts a prefabricated design, making installation convenient and requiring no complex construction. The greenhouse film uses high-transmittance PE or PO film to ensure basic lighting needs. The overall structure is simple and cost-effective, primarily meeting the basic needs of crop growth for wind and rain protection, light transmission, and heat preservation.

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① Affordable and cost-effective: Compared to types with auxiliary systems, the construction cost is 30%-50% lower, suitable for growers with limited initial investment.

② Simple installation and maintenance: The simple frame structure makes film replacement and frame maintenance convenient, requiring no professional maintenance team.

③ High space utilization: The multi-span design breaks the space limitations of individual greenhouses, creating a spacious interior that facilitates large-scale manual management, suitable for small to medium-sized batch cultivation.

④ Basic Protection in Place: Effectively withstands minor natural disasters such as wind, rain, and hail, providing a stable basic growth environment for crops.

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Suitable for supplementing open-field cultivation in temperate climates (such as spring and autumn in southern China and spring and summer in northern China). It can be used to grow resilient crops such as leafy vegetables (spinach, lettuce), seedlings of conventional grain crops, and potted common flowers (pothos, spider plants), etc.; it can also be used as a temporary storage shed for short-term storage of harvested crops.

A Greenhouse is a vital tool for controlled environment agriculture. Specifically, a Multi Span Greenhouse connects several standard bays under one expansive roof, maximizing space and structural efficiency for large-scale production. It is often clad with cost-effective polyethylene film. For superior temperature management, such a structure can be upgraded to an Insulated Greenhouse. This is achieved by using a double-layer film with air continuously pumped between the layers, creating a stable thermal buffer that conserves energy and protects crops from extreme outdoor temperatures, making it an efficient solution for year-round cultivation.

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