Product Introduction-PVB Film (Sound Insulation)

Product Introduction-PVB Film (Sound Insulation)

Sunlight control function

What is the sunlight control function?

Exterior wall design of modern buildings often uses a large number of glass. Therefore, the focus of the glass exterior wall is solar energy control and the comfort of the occupants. Solar energy control refers to the ability of glass to manage the amount of solar radiation entering a building. With the improvement of solar energy control level, the natural light, glare and indoor temperature of buildings can be managed.

Explanation of Solar Energy Transmission Loss

By reasonably designing glass and paying attention to building orientation, advanced sunlight control glass can reduce the size of air conditioning equipment

Sunlight control glass is very important in all office, exterior wall and roof glass applications. According to glass size and wall orientation, sunlight-controlled glass can also play a role in residential, heating and storefront

Glass selection based on the type of protection required

Light protection

It is necessary to use laminated glass to resist the glare caused by direct exposure to solar radiation. This is mainly achieved by reducing light transmission through absorption (colored) and/or coated glass panels (with metal coatings).

Solar protection

Solar energy is converted into heat through glass panels. Solar radiation in visible and infrared regions can be controlled by combining absorption (colored) glass panels, coated glass panels or low emissivity glass panels.

Ultraviolet Protection

Ultraviolet radiation has high energy and short wavelength, which can damage ink, pigments and polymers. Such damage may cause discoloration of fabrics, clothes and other internal accessories, as well as damage to unprotected plastics. Visible light may also cause damage, but the main cause of material damage is the wavelength of ultraviolet radiation. The possible impact of damage will multiply with the decrease of wavelength. Saflex intermediate membrane can selectively filter more than 99% of ultraviolet radiation.

Sunlight Control Function of Laminated Glass

Transparent laminated glass

The sandwich glass made of Huakai intermediate film can absorb more than 99% ultraviolet radiation (less than 380 nanometers). Compared with single transparent glass with the same thickness, laminated glass can absorb more infrared radiation. The solar transmittance of 33.2 laminated glass is 4% lower than that of ordinary 6mm glass, while the transmittance is only 1%.