Good Insulation Winter Tunnel Greenhouse

Wall: There are usually earth walls, brick walls, composite walls and other types. The insulation performance of earth wall is good, the cost is low, but the firmness is slightly poor; Brick wall is durable, insulation effect is also good, but the cost is high; The composite wall combines the advantages of a variety of materials, such as the inner layer of thermal insulation board, the outer layer of brick wall, which not only enhances the thermal insulation performance but also ensures the structural strength.

Skeleton: common bamboo skeleton, prefabricated galvanized steel pipe skeleton. Bamboo and wood skeleton materials are easy, convenient construction, low cost, but the arch strength is low, the ability to resist wind and snow is poor, easy to rot, need to be maintained and replaced every year; The assembled galvanized steel pipe skeleton has the advantages of high strength, strong snow resistance, good corrosion resistance, high light transmittance, and a service life of 10-15 years, but the cost is higher.

Covering material: plastic film is used as a transparent covering material, which has good light transmission and thermal insulation, which can let the sun light through and prevent heat dissipation. In order to enhance the thermal insulation effect, thermal insulation materials such as straw curtains and thermal insulation blankets are usually covered at night.