Vocabulary explanation about greenhouse

1. Single span: A single-span greenhouse is constructed with a standard unit as an independent sub-item. There is no need for drainage ditches. The snow load can generally slide off automatically and will not put too much pressure on the roof. It is equipped with side windows. When ventilating, the ventilation and cooling effect is good in summer.

2.Multi-span greenhouses: Two or more single-span greenhouses are connected together at the eaves, the middle partition wall is removed, and gutters are added to form a multi-span greenhouse. Generally divided into multi-span glass greenhouses, multi-span solar panel greenhouses and multi-span film greenhouses.

3.Film greenhouse: The main covering material is film, which can be single or multi-span. The cost of film is lower than that of glass and PC board.

4.Solar greenhouse: It consists of gables on both sides, maintenance back wall, supporting frame and covering material (usually film). It is a type of greenhouse unique to northern my country. Except for extremely cold weather and special crop needs, generally no heating is required indoors. The rear wall absorbs solar energy to store and release heat, maintaining a certain indoor temperature level to meet the needs of crop growth.

5.Glass greenhouse: Glass is the main light-transmitting covering material. Compared with other covering materials currently used, glass has a longer service life, but the cost is higher. The material is divided into two types: ordinary glass and diffuse reflective glass.

6. PC solar panel greenhouse: The main covering material is double-layer transparent PC solar panels, which usually use one span and multiple roofs. Compared with other ordinary glass and other plastics, it has lower thermal conductivity, thus greatly reducing heat loss, reaching The purpose of energy saving. Light weight and flame retardant. It should be noted that it is difficult to distinguish the quality of non-standard solar panel products with the naked eye, and quality problems such as short service life and significantly reduced light transmittance all appear three to five years after the completion of the greenhouse project.