Multi-span film greenhouses are greenhouses with film as the main light-transmitting covering material, and are usually divided into single-layer film greenhouses and double-layer film greenhouses. In view of its thermal insulation performance, single-layer film greenhouses are mostly used in spring and autumn or in mild climate areas; double-layer thin greenhouses are mostly used in northern regions. Usually used for planting flowers, vegetables and fruits, flower market, sightseeing display, seedling breeding, etc.

The multi-span film greenhouse adopts a hot-dip galvanized steel pipe frame, a single-layer or double-layer film for covering the top and surrounding facades. According to requirements, internal/external shading systems, fan wet curtain cooling systems, natural ventilation systems around and on the top, and electricity can be added. Control system, etc.

The commonly used structure types of multi-span film greenhouses include large-span circular arch film, patterned apex film greenhouse, large-span zigzag, and small-span zigzag film greenhouse.

Features of multi-span film greenhouse:

1. It can effectively prevent heat loss and cold air intrusion, with better heat preservation performance and lower energy consumption;

2. High utilization rate inside the greenhouse, low overall construction cost and convenient use;

3. The indoor usable space is large, the ventilation effect is good, and it is suitable for areas with stable climate.