Greenhouse Cover Film

For the entire greenhouse industry, plastic film is one of the covering materials, and it occupies a very large market. In terms of the total amount of use, it is much larger than the total amount of glass and solar panels. The key factor is that the price of the film is relatively cheap, which is more in line with the public's vegetable farmers. However, plastic films have their detailed classifications in the market, and different films also have their scope of use. At this point, the mode of root planting has a little relationship with the type of greenhouse, and it is not simply caused by the film factor

Nowadays, in greenhouse construction, the films that are often used are mainly EV film, PE film and PO anti-drip film. These three films are the most commonly used films in the market, and are mainly adapted to different application scenarios. For this, it is mainly related to the price and service life of the film, and the other is the type of greenhouse. Different types of greenhouses are related to its planting time and persistence.

Solar greenhouse, also known as greenhouse, is a type of greenhouse unique to the north, mainly for off-season planting in winter, while summer is the rest period of solar greenhouse. As for the type of film to choose for solar greenhouse construction, it has the most choices of film types among the solar greenhouses I have built, but on the whole it is basically PE film or PO anti-drip film, but these two films In between, the choice from the current market is basically based on PO anti-drip film. Because the anti-drip film is more conducive to the planting requirements in the greenhouse in winter, because of the dew phenomenon in the greenhouse, it will cause certain diseases to the crops in the greenhouse. This is the factor why PO anti-drip film is selected. There is a problem of the service life of the film here. The PE film is about 1-2 years, and the PO film is about 3-5 years. These are also in the case of no artificial damage.

What kind of film is used in the multi-span greenhouse For this film multi-span greenhouse, it is a very special type of greenhouse, because the arc-shaped design of the large roof is very different from the triangular roof design of the multi-span greenhouse. Because of the structure of the arc-shaped roof of the membrane multi-span greenhouse, it is determined that the top of the greenhouse must be installed with plastic film, and the choice of the covering material of the facade can be roughly divided into two types, mainly plastic film and sunshine board. , but most of them are plastic films. And its roof area is generally larger, and it will choose PO anti-drip film. The relationship between the difficulty of greenhouse film installation and the thickness of the film Another key factor in the choice of film is the installation, which also leads to your choice of film type. In addition, its service life is also related to the thickness of the film. The service life of the thin film is definitely not longer or stronger than the service life of the thick film. The film installation is mainly a difficult and easy problem to consider, that is, the problem of causing the cost of construction personnel. It should be very easy to understand at this point.

From the perspective of film type, EV film, PE film and PO film, when they have the same thickness, the light transmittance of PO film is the highest, there is no doubt about this. Their thickness is generally 8 wires, 10 wires, 12 wires and 14 wires, of which 8 wires or 10 wires are the most commonly used, especially in spring and autumn greenhouses and solar greenhouses. However, the spring and autumn greenhouses are basically mainly EV film, and PE film is also used in part, and the solar greenhouse basically uses PO anti-drip film, because the humidity of the solar greenhouse in winter is relatively high, and the film is prone to dew. It is also the reason why PO anti-drip film is selected.

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