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2018
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12
System doors and windows will replace ordinary doors and windows to become the future development trend
Category:
Summary description: As early as the 1980 s, Europe developed high-performance system doors and windows, and its energy-saving performance, safety performance, and comfort far exceed ordinary doors and windows. The 2003 European door and window standard requires that the K value is not more than 1.4. High-performance system doors and windows are 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 (heat preservation). The current highest standard in China-Beijing door and window standard is the K value 2.8, which is only the 1984 European door and window K value standard. According to calculations, according to China's existing urban construction area of about 43 billion square meters, if the implementation of European
As early as the 1980 s, Europe developed high-performance system doors and windows, and its energy-saving performance, safety performance, and comfort far exceed ordinary doors and windows. The European door and window standard in 2003 requires that the K value is not more than 1.4, high performanceSystem doors and windowsMore popular, the current 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 (heat preservation), China's current highest standard-Beijing door and window standard is K value 2.8, only Europe's 1984 door and window K value standard. According to calculations, according to the calculation of China's existing urban construction area of about 43 billion square meters, if the current European standard K value for doors and windows is implemented, 0.43 billion tons of standard coal can be saved each year, which is about 20% of China's annual coal output, and the quantity is quite alarming.
Key words:
Pulley
Sliding Brace
中文版
English
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