What are the top covering materials of the greenhouse

What are the top materials of the greenhouse? Greenhouses are used more and more widely in agriculture, occupying a large market share in the nursery and planting of vegetables, flowers, and fruits. Secondly, they are also widely used in some sightseeing agriculture and ecological restaurants. Many agricultural growers are not clear about how to choose the covering material for greenhouses. Today we will explain to you what are the advantages and disadvantages of the covering materials for greenhouses commonly used. The style of the greenhouse is divided into round arch and spire style. Under normal circumstances, dome-shaped greenhouses are mostly covered with film, and pointed greenhouses are mostly covered with sun panels or single-layer glass.

1. The advantages and disadvantages of the film

The film is divided into different materials such as po film and pe, and the thickness ranges from 5 to 15 filaments. Among them, we use 15 or 12 filaments in the multi-span greenhouse. The advantage of the film is that it is low in cost and economic in use. For example, the price of the 15-silk PO film with a five-year warranty of the Tianhe brand is about 4 yuan/square meter, which is one-tenth of the sun board. The disadvantage of the film is that the light transmittance is lower, and the film needs to be replaced after five years.

Second, the advantages and disadvantages of the sun board

1. Anti-ultraviolet: The surface of the PC board is treated with anti-ultraviolet technology, and the thickness of the anti-ultraviolet layer is greater than 50 microns

2. Prevent indoor dripping: The special single-sided coating of the PC board can effectively decompose the condensation on the surface of the board after special treatment;

3. Super heat insulation: The PC board has super heat insulation, which can save energy up to 50% compared with traditional lighting and heat insulation methods;

4. Breakage resistance: The PC board is a safe and high-impact-resistant lighting material. Compared with other greenhouse materials, it has the strongest impact resistance and will not need to be replaced frequently due to aging or damage. In the case of severe storms, hail and snow, the plate will not be damaged, thereby saving replacement costs; drop hammer impact test: 10 kg heavy hammer, falling from a height of 2 meters, no cracks or cracks after impact.

5. Light weight: the weight is 1/15 of the same thickness of glass, and the weight is about 1500g/m2

Three, the advantages and disadvantages of glass

The top of the greenhouse generally uses 4mm or 5mm single-layer tempered glass. The advantages of glass are long service life and reasonable maintenance. The actual service life is more than 30 years, followed by high light transmittance. The light transmittance of glass can reach 90%. , The use of ultra-white glass is even higher.

The disadvantage of single-layer tempered glass is that the single-layer heat preservation and heat insulation performance of the solar panel is worse, followed by the heavier weight, and the weight of 5mm glass is 12.5kg per square meter.

The above covering materials have their own advantages and disadvantages, and agricultural practitioners can choose reasonable covering materials according to the needs of planting crops and investment budget. Because the film and the sunshine board are plastic products, don't try to use inferior products at low prices. 

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