The continuous development of the greenhouse has now formed a considerable scale. Today, many cities have their own landmark glass greenhouses. The profile requirements for glass greenhouses are becoming more and more stringent. From the original earth-wall greenhouse to the steel structure greenhouse, and then to the current hot-dip galvanized tube greenhouse, the life of the greenhouse is getting longer and longer, and the benefits of investment are also More and more stable, more and more cost savings in consumables.

It is such a greenhouse. On the covering material, so far, some greenhouses still use sunlight panels or ordinary float glass. It is understood that the average service life of the solar panels is between two to three years. The shorter service life is obviously not compatible with the higher specification and long service life greenhouses. Then it is updated to use glass to cover, but ordinary float glass Tempered glass does not have high light transmittance, plant photosynthesis is restricted, and yield is not high.

The predecessor of diffuse reflective glass is anti-reflective glass, but the technical specifications of diffuse reflective glass used in many places are diffuse scattering glass, with a light transmittance of only 91.5%, because of its excellent scattering and lower relative to anti-reflective glass. The price has gradually become the main covering material of the glass greenhouse.

Before 2019, the main specification of diffuse reflection glass for greenhouses was 5 mm. However, it was gradually discovered that 5 mm diffuse reflection glass is not only more expensive than 4 mm, but also has a slightly lower light transmittance than 4 mm diffuse reflection glass. Starting from the first half of 2019, greenhouse glass covering materials have gradually shifted from 5 mm to 4 mm.

At the same time, there is also the conversion of patterns. Before, the glass with cloth pattern was used more often, and it is currently changing in the direction of fragrant pear. Moreover, the fragrant pear diffuse reflection glass is more suitable for glass greenhouses.

Although greenhouse glass technology has gradually matured, the popularity of diffuse reflective glass is still not enough, and many glass greenhouses are still using ordinary float glass. In previous customer receptions, many did not have the concept of diffuse reflection glass, but only knew that there is a material for greenhouse glass, which has a good effect on greenhouse planting, but there is no channel. The conventional specification of greenhouse glass is still unknown, but it is still circulated in a small range in the agricultural circle.

Talk about the main specifications and technical standards of the greenhouse diffuse reflection glass. First, the first is the light transmittance, the second is the hemispherical light transmittance, the third is the haze value, the fourth is tempered, and the fifth is coating. Wait.

The vague concept of greenhouse investors is: What is scattering? What is diffuse reflection glass? What is the hemispherical transmittance? What is haze? Wait for these concepts (I won't explain them one by one here, you can leave a message to explain if you need it).

PS: The light transmittance of the greenhouse here is not the light transmittance of ordinary glass, but the light transmittance of blue-violet light.

So when we purchase diffuse reflection glass for greenhouse, which parameters should we pay more attention to, first is haze, which is the main technical specification for distinguishing diffuse reflection glass, and second is light transmittance, which is the parameter of light transmittance in this hemisphere.

Greenhouse glass accounts for about 5% of the investment in the entire greenhouse. Although it does not account for much, good glass is essential for the later operation of the greenhouse. Nowadays, most government benchmark projects basically use diffuse reflection glass.