What are the covering materials for the greenhouse?
There are three main types of covering materials for greenhouses, namely film, glass, and solar panels.
Greenhouse Covering Material-Film
The main covering material of multi-span film greenhouse is 12-15 silk PO film, including single-arch single-film greenhouse and double-arch double-film greenhouse.
The main features of the double-arch double-membrane greenhouse are:
1. The double arch and double membrane can effectively prevent heat loss and prevent the flow of cold air and heat loss, which helps to cool down and dehumidify in summer;
2. The vault is more conducive to the decline of rain and snow, reduces wind resistance, and improves the load resistance of the greenhouse;
3. Single-layer film users can choose flexible options according to actual needs and weather conditions, the opening number and height of side roller blinds, so as to better adjust the indoor environment
4. In view of the increased rainfall in the south, a large-capacity gutter is used in the single-layer membrane greenhouse to ensure timely discharge of rainwater.
5. The low cost of thin film greenhouse is suitable for large-scale promotion in my country.
Greenhouse Covering Material-Glass
The surrounding material of the glass greenhouse is 4+9+4, 5+6+5, 5+9+5 float single-layer glass or hollow glass. The glass can be fully tempered, and the top is covered with 5mm tempered glass.
The main features of the glass greenhouse are:
1. Solve the contradiction between heat preservation and light transmission in the greenhouse; good heat preservation in winter.
2. The unique glass sealing structure completely solves the roof leakage problem.
3. The glass greenhouse has the advantages of beautiful appearance, good light transmission, good display effect and long service life. For places with low light, geothermal energy and waste heat from power plants, glass greenhouses are a better choice. Glass greenhouses are very suitable for the middle and lower reaches of the Yangtze River.
Greenhouse Covering Material-Sunshine Board
The top of the Venlo-type sunshine board greenhouse is covered with 8mm~12mm sunshine boards, and the surrounding sunshine boards or other coverings.
The main features of the Venlo-style solar panel greenhouse are:
1. One span with multiple spires, the greenhouse has the characteristics of a small roof, multiple gutters, large spans, etc., and partitions can be flexibly set inside;
2. Good lighting performance, uniform indoor lighting; strong drainage capacity, can be connected to a large area.
3. The interior is spacious and bright, the operating space is large, and the greenhouse utilization rate is high.
4. The effect of heat preservation and energy saving is better than that of single-layer glass, which can save a lot of fuel in winter, but its light transmittance is worse than single-layer glass.
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