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What are system doors and windows and their development history?
The doors and windows of the system are the perfect organic combination of performance systems, which need to consider a series of important functions such as watertightness, airtightness, wind pressure resistance, mechanical strength, heat insulation, sound insulation, theft prevention, shading, weather resistance, operating hand feeling, and the comprehensive results of equipment, profiles, accessories, glass, adhesives and seals, all of which are indispensable, and finally form a high-performance system door and window.

For high-performance doors and windows, most people think that it is enough to buy high-quality doors and windows, and only pay attention to the quality of obvious parts of doors and windows (such as aluminum, glass, accessories, etc.). ), but they don't understand some professional performance requirements of doors and windows at all, and pay more attention to factors such as product quality and cost performance. In the initial consumption ideology, high-quality doors and windows are equal to high-performance doors and windows.

High-quality doors and windows = high-quality profile+glass+accessories+adhesive tape+processing technology+installation technology+…

High-performance doors and windows = high-performance profile × glass × fittings × adhesive tape × processing technology × installation technology × …

Conclusion: High quality doors and windows ≠ high performance doors and windows.

The doors and windows of the system are the perfect organic combination of performance systems, which need to consider a series of important functions such as watertightness, airtightness, wind pressure resistance, mechanical strength, heat insulation, sound insulation, theft prevention, shading, weather resistance, operating hand feeling, and the comprehensive results of equipment, profiles, accessories, glass, adhesives and seals, all of which are indispensable, and finally form a high-performance system door and window.

For high-performance doors and windows, most people think that it is enough to buy high-quality doors and windows, and only pay attention to the quality of obvious parts of doors and windows (such as aluminum, glass, accessories, etc.). ), but they don't understand some professional performance requirements of doors and windows at all, and pay more attention to factors such as product quality and cost performance. In the initial consumption ideology, high-quality doors and windows are equal to high-performance doors and windows.

High-quality doors and windows = high-quality profile+glass+accessories+adhesive tape+processing technology+installation technology+…

High-performance doors and windows = high-performance profile × glass × fittings × adhesive tape × processing technology × installation technology × …

Conclusion: High quality doors and windows ≠ high performance doors and windows.

Why should China introduce European-style doors and windows?

Since the early 1980s, the modern building door and window industry has experienced nearly 30 years of market baptism and evolution. Ordinary doors and windows with poor performance have always occupied the dominant position in China market, and the technology of doors and windows in China is slow to update. Building doors and windows have become a big energy consumer in China, and will be a big energy saver in the future!

But as early as the 1980s, Europe developed high-performance system doors and windows, which are far more energy-saving, safe and comfortable than ordinary doors and windows. In 2003, the European Windows and Doors Standard required that the K value should not be greater than 1.4, and the windows and doors of high-performance systems were more popular. At present, the market application has reached 70% of the total number of doors and windows, while the average K value of doors and windows in China is about 3.5, and the highest domestic standard-Beijing door and window standard is 2.8, which is only the European door and window 1984 K value standard. According to estimates, according to the existing urban construction area of about 43 billion square meters in China, if the current European standard K value for doors and windows is implemented, 430 million tons of standard coal can be saved every year, accounting for about 20% of China's annual coal production, which is quite amazing.

European system doors and windows entered the China market in the late 1990s. At present, the K-value standard of windows and doors of high-performance systems in Europe can reach 0.8, and its energy consumption is basically only 1/4 of that of windows and doors of buildings in China.

"Low carbon" is the theme of the World Climate Conference in Copenhagen at the end of 2009. At the meeting, countries launched their own energy conservation and emission reduction targets. China promised that by 2020, China's carbon dioxide emissions per unit of GDP will be reduced by 40%-45% compared with 2005, and will be incorporated into the medium-and long-term planning of national economic and social development as a binding indicator. This means that China must take practical energy-saving measures in all economic fields of society to achieve the predetermined goals. At present, China's building energy consumption has accounted for 40% of the total energy consumption of the whole society; Energy consumption of doors and windows accounts for 45%~50% of building energy consumption and 15%~20% of total social energy consumption. It can be seen that doors and windows are the main reasons for building energy consumption, and the upgrading of building energy-saving doors and windows will be the general trend.

Therefore, we must improve the thermal insulation effect of doors and windows in all directions and guide everyone to use high-quality energy-saving doors and windows. At the same time, European high-performance system doors and windows have become the first choice for energy-saving doors and windows in China!

What is the function of system doors and windows? 1. Create a healthy and comfortable environment to ensure the health of residents;

2. Protect the building structure and decoration structure from natural condensed water or rain in the air;

3. Reduce the energy consumption of heating and air conditioning;

4. Reduce maintenance and operation costs.

Are system doors and windows really expensive?

As the system doors and windows are more and more recognized by the market, with the gradual expansion of the market, the comprehensive cost is getting lower and lower. At present, the price of good system doors and windows on the market is about 1000 yuan/square meter, which is only about 200 yuan/square meter more expensive than high-quality ordinary doors and windows. At present, the real estate prices in first-tier cities such as Beijing and Shanghai are1~ 30,000 yuan/square meter, while those in second-tier cities are 3,000 ~ 65,438+. Even if ordinary doors and windows in new buildings are replaced by high-performance system doors and windows, only 100~300 yuan will be added per square meter. Although the system doors and windows are a little more expensive than ordinary doors and windows, the cost per square meter of house price is still very limited. In order to sell residential products quickly, many real estate developers are fully capable of bearing this premium.

With the combination of property market regulation policies, the state will gradually rectify the real estate market to a certain extent, curb housing prices, and introduce a large number of affordable housing, low-rent housing and price-limited housing to stabilize the market. When there is no shortage of housing, the house price will come down and the house will be unsalable. Real estate developers need to seek selling points in the quality and function of houses. Whoever can please consumers more will sell their residential products.

As an important part of the overall function of the building, building doors and windows will benefit more and more. Improving the performance of doors and windows and using high-performance system doors and windows will also become one of the important selling points for real estate developers to promote residential products.