Many people don't know about system doors and windows
If you want to understand system doors and windows, you must first understand the development history of doors and windows.
The development history of doors and windows
The development history of doors and windows can also be said to be the development history of mankind. Since humans learned to live in caves, they covered them with weeds to form the earliest doors. Later, humans felt that they were getting more and more depressed. So they specifically looked for caves with "skylights" to live in. This way, they would not live in a "coffin" for the rest of their lives.
Therefore, the basic functions of doors and windows from ancient times to today are to block, light, and ventilate. With the emergence and development of tools, humans have higher and higher requirements for the refinement of doors and windows.
However, the early doors and windows in ancient times were particularly limited by technology. In addition to maintaining the basic functions of doors and windows, they added functions such as partitions and anti-theft. Large families used doors and windows to improve the grade of doors and windows by carving patterns.
The material of doors and windows has changed
It was not until the Republic of my country period that steel structure doors and windows began to be introduced into China, mainly from Britain, Belgium, and Japan. In 1925, our country began to produce them in small batches. Steel structure doors and windows began to enhance the durability and firmness of doors and windows. But most families are wooden structures.
It was not until the 1970s that my country began to accept aluminum alloy structure door and window systems. Aluminum alloy doors and windows are light, high-strength, not easy to deform, and have more diverse designs. Air tightness, sound insulation, corrosion resistance, waterproofness, and wind resistance have been comprehensively improved. However, due to technical limitations, the overall quality of aluminum alloy doors and windows on the market is still uneven.
It was not until the 1980s that domestic modern buildings began to introduce high-performance system doors and windows from Europe.
Characteristics of system doors and windows
System doors and windows are a perfect combination of door and window performance systems. They have a series of important functions such as water tightness, air tightness, wind resistance, degree, heat insulation, sound insulation, anti-theft, sunshade, weather resistance, and operating feel that are higher than the requirements of ordinary doors and windows. They also need to consider the comprehensive results of the performance of each link of equipment, profiles, accessories, glass, adhesives, and seals. It is a high-performance door and window complex.
Especially in terms of wind pressure resistance, air tightness, water tightness, heat preservation, and sound insulation, it is comparable to ordinary doors and windows rubbing on the ground. (Of course not absolutely) System doors and windows have improved a lot in terms of performance and quality. Especially in recent years, system doors have been greatly improved in terms of energy saving and environmental protection.