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How to choose the system door and window glass configuration

Among the many components of the system doors and windows, glass occupies more than 85% of the area, like the "eyes" of the house, and its configuration is directly related to the performance and comfort of the doors, windows and even the entire home. From thermal insulation to sound insulation and noise reduction, from safety and explosion-proof to lighting vision, different glass types and combinations have their own merits. So, how to accurately choose the most suitable configuration for your system doors and windows among the dazzling array of glass options? Let's explore it in depth.
The type of glass is revealed
Transparent glass: the contest between white glass and ultra-white glass
White glass, as a "frequent visitor" in the field of architecture, is widely used in all kinds of windows, doors and curtain walls. It is affordable and can meet the needs of basic lighting, but the light transmittance is relatively limited, the iron content is slightly higher, and it is slightly inferior in some scenes with strict requirements for light quality.

Ultra-white glass is like the "aristocracy" of the glass family, standing out for its extremely low iron content and ultra-high light transmittance. The light transmittance is as high as 91.5%, making the indoor light clearer and brighter, effectively avoiding the "gray" visual feeling brought by ordinary glass. Whether it is high-end residences pursuing ultimate lighting, or museums, exhibition halls and other places with strict requirements for the display effect of exhibits, ultra-white glass is the best choice. In addition, the self-detonation rate of ultra-white glass is much lower than that of white glass, which is better in terms of safety.

Coated glass: The charm of Low-E glass and thermal insulation and energy-saving film
Low-E glass, short for low-emissivity coated glass, is coated with one or more layers of metal or compound film. This magical film is like a "smart insulation cape" on the glass, which can effectively reflect infrared and ultraviolet rays. In the hot summer, it can block more than 75% of the solar radiant heat from entering the room, greatly reducing the energy consumption of air conditioners. In the cold winter, indoor heat can be reflected back indoors, reducing heat loss and achieving high efficiency and energy saving. According to statistics, heating costs can be reduced by about 30% in buildings using Low-E glass.

Some brands have also launched patented thermal insulation and energy-saving films, which also have excellent thermal insulation performance, providing consumers with more personalized choices. If your home is located on a high floor or in a well-lit area with strong sunlight in summer, Low-E glass or thermal insulation film is definitely a powerful assistant in reducing indoor temperature and UV damage. while low-rise houses, due to relatively weak light, choose ordinary white glass to meet the lighting needs.

The study of glass thickness and layers
Thickness selection: Thicker is not always better
Common glass thicknesses include 5mm, 6mm, and 8mm, and when making large-size glass, specifications such as 10mm, 12mm, and 15mm can also meet the needs. The choice of glass thickness is not simply "the thicker the better", but should be determined according to the entire window area. Generally speaking, when the area of a single piece of glass is ≥ 1.5 square meters, it is recommended to use a thickness of 5mm + or more to ensure the strength and stability of the glass, and avoid the risk of shaking or even cracking caused by too large area and insufficient thickness. For example, for large floor-to-ceiling windows, thicker glass needs to be used to withstand wind pressure.

Layer selection: Meeting needs is the key
Single-layer glass: ordinary single-glass glass has good light transmittance and low price, but the heat and sound insulation performance are not good, and it is only suitable for simple buildings or temporary places with very low requirements for heat and sound insulation, such as simple sheds. Tempered single glass has a significant improvement in strength, and after crushing, it is obtuse and small particles, which is highly safe and is often used in indoor partitions and other scenarios with certain safety requirements.

Double glazing:

Insulating glass: composed of two layers of glass with an air layer or inert gas layer in the middle, which is the mainstream configuration of doors and windows in the current system. Its good thermal and sound insulation properties can effectively reduce heat transfer and sound transmission. For example, the common combination of 5mm glass + 12mm air layer + 5mm glass can make the air sound insulation of doors and windows reach more than 29 decibels, and is widely used in doors and windows such as residential and office buildings.

Laminated glass: one or more layers of organic polymer interlayer between two or more layers of glass, which not only have high safety, strong penetration resistance, but also excellent sound insulation effect, especially good at blocking low-frequency noise. It is often used in places with high safety and sound insulation requirements, such as banks and museums, as well as in families with children and pets who value window safety.

Triple glazing:

Three-glass and two-chamber insulating glass: composed of three layers of glass and two air layers, the thermal and sound insulation performance is to a higher level. in cold areas, it can better resist severe cold and keep the room warm; In buildings close to noise sources such as railways and highways, it can effectively isolate the noise from the outside world.

Three-glass laminated insulating glass: It combines the safety performance of laminated glass with the thermal and sound insulation advantages of insulating glass, making it an ideal choice for high-end residences, luxury hotels and other places with strict performance requirements.

The requirements for the number of glass layers vary from floor to floor and environment. On the 6th floor and below, there is more medium and low frequency noise, and hollow or laminated glass can be selected; 6th - 14th floor, medium and high frequency noise is dominant, insulating glass or laminated glass is acceptable; On the 14th floor and above, the same medium and high frequency noise is the most, and the sound insulation effect of three-glass and two-cavity glass is more outstanding. Of course, double-layer insulating glass has been able to meet the daily needs of most families.

The mystery of glass-filled gas
The filling gases of door and window glass mainly include air, argon, helium, etc. Air is the most common filling option, but argon and helium perform better in comparison. Argon has excellent thermal insulation properties, and can reduce gas turbulence inside the glass after filling, reduce heat conduction, and improve thermal insulation effect. At the same time, argon can also reduce the transmission of high-frequency noise to a certain extent and improve sound insulation performance. In some high-end doors and windows, helium is used for its better sound insulation, but the cost is relatively high. If you are looking for excellent thermal and acoustic insulation and your budget allows, argon or helium-filled glass is a good choice.

The configuration of system doors and windows should comprehensively consider many factors such as the climatic conditions of the building area, the surrounding environmental noise conditions, the function of the house, and the budget. Only in this way can you choose the glass configuration that best meets your needs and create a "window of time" with excellent performance, comfort and pleasantness for your home.

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