Glass is an important component that impacts the functionality of the window, Glass should be selected on the basis of thermal insulation requirement, sound insulation requirement and safety requirement. All of our windows and doors can accommodate any type of glass as desired and required as per the clients requirements.
Insulating glass comprises two or more plies of glass that are separated with aluminum spacer fully filled with desiccant, and the sides are sealed with high-strength sealant. Annealed clear glass, tinted glass, solar reflective glass, Low-E glass, laminated glass, tempered glass, heat-strengthened glass and curved glass, etc. can be used to form insulating glass according to demands.
Tempered and Heat Strengthened Glass
Tempered and heat-strengthened glass is obtained by heating ordinary glass to its softening point and then suddenly cooling down to form compression in the surface layer of the glass, thus the mechanical strength is increased by times.
Laminated Glass is made by adding PVB membrane between glass plies and then heating in autoclave. Laminated glass is a kind of safety glass and is hard to break. The glass may be retained in its frame even if being broken.
Low E Glass
Low emissivity coated glass is also called Low-E glass. Low-E glass is to coat low emissivity silver and metal oxide layers on glass surface. The coatings on glass will show different colors. Its major properties is to lower the U-value and selectively lower the SC which on the whole improves the glass energy efficiency. It features high infrared reflection. It can directly reflect far infrared. Because of its low surface emissivity(E), it absorbs and re-radiates very little energy. It has a wide range of shading coefficient(SC) which can meet different solar control requirements according to different climates. It can be divided into high transmission low-E glass and solar control low-E glass.
High transmission Low-E glass has shading coefficient Sc≥0.5 which does not reduce too much solar heat. It is very suitable to be used in the northern area where heating system is adopted. In winter, sun rays can transmit through this type of Low-E glass into the room and the energy is absorbed by interior objects. The objects in the room will re-rediate far infrared which cannot pass through the Low-E glass. Such solar heat is confined indoors together with the heat from the indoor heaters. Thus, heating costs can be reduced.
Solar Control Low-E glass has shading coefficient Sc＜0.5 which can reduce solar heat transmission. It is very suitable to be used in the southern area where air conditioner is used for cooling. In summer, it can block solar heat from entering the room as well as to block scattered far infrared from outdoors. Thus, the costs of air conditioning can be reduced.
According to the structure of Low-E coating, Low-E glass may be classified as single silver Low-E glass, double silver Low-E glass and so on.
Low-E insulating glass, a recognised energy saving building material, is advocated to use in green architecture by the country. It can meet or even out perform the requirements stated in the national standards for energy conservation of materials used in public buildings and residential buildings. The Low-E coating is made by using vacuum magnetron sputtering technology to deposit metallic silver and auxiliary layers on glass surface. It is then assembled with another piece of glass as an insulating glass unit enclosed with dry air. Compare Low-E insulating glass with clear insulating glass, it’s silver layer has high reflection to solar heat. This keeps away solar heat from outdoors while allows good natural lighting indoors in summer. In winter, it prevents indoor heat from getting out of room through the glass so as to conserved building energy. Low-E insulating glass can better preserve energy than monolithic glass upto a saving of 67-70%. It also saves around 40% more energy than clear insulating glass.
Frosted Glass is produced by the sandblasting or acid etching of clear sheet glass. It has the effect of rendering the glass translucent by scattering of light during transmission, thus blurring images while still transmitting light.
Bullet Resistant Glass
Bullet Resistant Glass is one kind of the sandwich glass, and made jointly by the multilevel glass and pile. Total thickness is more than 20mm. High requirement bulletproof glass thickness reaches 50mm. According to the difference between the thickness of bulletproof glass and the film of intermediate layer, it can resist pistols effectively, shooting of different firearms, including submachine-gun and rifle. Because of the special function, bulletproof glass is a kind of top-grade safety glass that can be extensively used in automobiles, planes, and banks.
Fire Resistant Glass
This new type of glass effectively provides a transparent fire wall and rated protection against heat, flame, smoke, and hot gases. It is made from processed float glass, it can keep intact within 60-120 minutes, it can also prevent dispersion of high-temperature toxic gas from flame, fume and burning, maintain excellent transmission that is good for people to do fire fighting.