Insulated 4mm 6A 4mm Low E Glass Curtain Wall Light Transmittance Anti Ultraviolet Rays

Anti-ultraviolet Rays Insulated Low-E Glass Facade Curtain Wall Light Transmittance

Low-E glass, also known as low-e glass, is a film product composed of multiple layers of metal or other compounds coated on the glass surface. The coating layer has the characteristics of high transmission of visible light and high reflection of mid- and far-infrared rays, which makes it have excellent thermal insulation effect and good light transmission compared with ordinary glass and traditional architectural coated glass.

Glass is an important building material. With the continuous improvement of the decorative requirements of buildings, the use of glass in the construction industry is also increasing. However, when people choose glass doors and windows of buildings, in addition to considering their aesthetic and appearance characteristics, they pay more attention to their heat control, cooling costs, and internal sunlight projection comfort balance. This makes Low-E glass, an upstart in the coated glass family, stand out as the focus of attention.

Specification:

Performance:

Excellent thermal performance:

The heat loss of exterior door and window glass is the main part of building energy consumption, accounting for more than 50% of building energy consumption. Relevant research data shows that the heat transfer on the inner surface of the glass is mainly radiation, accounting for 58%, which means that the performance of the glass must be changed to reduce the loss of heat energy.

The most effective method is to suppress the radiation on its inner surface. The emissivity of ordinary float glass is as high as 0.84. When a layer of low emissivity film based on silver is plated, its emissivity can be reduced to below 0.15. Therefore, the use of Low-E glass for building doors and windows can greatly reduce the transmission of indoor heat energy caused by radiation to the outside, and achieve the ideal energy-saving effect.

Good optical performance:

The visible light transmittance of Low-E glass ranges from 0% to 95% in theory (it is difficult to achieve with 6mm white glass). The visible light transmittance represents the day-lighting in the room. The outdoor reflectance is from about 10% to 30%. The outdoor reflectance is the visible light reflectance, which represents the intensity of reflection or dazzling degree. At present, China requires that the visible light reflectance of the curtain wall is not greater than 30%.

Advantages:

1. Security. Low-E laminated insulating glass, even if the laminated glass is broken, the fragments will be stuck on the film (the term "film" is provided by the industry encyclopedia), and the surface of the broken glass remains clean and smooth, which effectively prevents the fragments from sticking. In the event of injuries and penetrating falls, the degree of safety precautions is extremely high.

2. Installation winding of Low-E glass curtain wall: strict on-site quality management control measures must be taken at the installation construction site to reduce it to the lowest possible range, otherwise it will cause additional warpage and deformation of the glass panel. Image distortion. Increasing the thickness of the glass can effectively reduce the installation winding degree of the glass.

Influence of changes in ambient temperature and pressure: Changes in ambient temperature and pressure will cause the gas in the enclosed cavity of the hollow glass to expand or contract, and the hollow glass will appear convex or concave, resulting in an additional deformation of about 10%. The non-equal thickness (that is, the outer sheet is thick and the inner sheet is thin) glass configuration is beneficial to reduce the deformation of the outer sheet of glass.

3. Noise reduction. PVB film has an obstructive effect on sound waves, and the use of LOW-E laminated insulating glass can effectively block the propagation of sound and reduce noise.

4. Anti-ultraviolet rays. Low-E glass curtain wall has a very high blocking effect on ultraviolet rays (up to 99% or more), which can prevent valuable indoor furniture, curtains, displays or other items from being affected by ultraviolet radiation. The continuous development of architectural aesthetics puts forward higher and higher requirements for architectural curtain wall glass. LOW-E laminated insulating glass conforms to the world trend of energy saving, environmental protection, comfort, beauty and safety, and has become the first material for the exterior curtain wall glass of many classic skyscrapers.

There are many types of glass materials. Low-E glass is one of them. This Low-E glass is a relatively new type of glass material. Ordinary glass cannot prevent radiation. The characteristics of Low-E glass are not only It can prevent radiation, and can also absorb a large amount of solar radiation, making full use of solar energy to increase the indoor temperature.