What are the doors and windows of the energy-saving system?

System doors and windows: refers to the doors and windows that have gone through three processes of system research and development, customization and standardized installation. It is a perfect organic combination of performance system, which needs to consider a series of important functions such as watertightness, airtightness, wind pressure resistance, mechanical strength, heat insulation, sound insulation, theft prevention, sun shading, weather resistance, operating handle, and the comprehensive results of equipment, profiles, accessories, glass, adhesives and seals, all of which are indispensable, and finally form high-performance system doors and windows.

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Five major performances

Let's first understand the five performance levels of doors and windows:

(1) Wind pressure resistance: refers to the performance that external doors and windows will not be damaged under wind pressure; Such as cracking, broken profile, broken glass, invalid bonding, loose hardware, etc., are classified into 9 grades, and the average system doors and windows reach 6 grade standards (Wang Mei 98 series doors and windows reach 9 grade international highest standards).

(2) Air tightness: The simple point is the ability of external doors and windows to prevent air infiltration in the normally closed state, which is divided into 8 levels, with the average system doors and windows reaching 6 levels, and the imported system doors and windows can reach the highest level. (The 98 series of doors and windows in Wang Mei has reached Grade 8 standard, which is the highest in the world).

(3) Watertightness: the ability of doors and windows to prevent rainwater infiltration when they are closed normally and when it is windy and rainy is divided into six levels. The average value of doors and windows in the system reaches Grade 4 standard. (Wang Mei 98 series doors and windows have reached the international highest level of Grade 6 standard. )

(4) Thermal insulation performance: that is to say, the K value in the technical terms of doors and windows, the system doors and windows shall not be lower than the Grade 3 standard (Wang Mei 98 series standards for doors and windows reach Grade 7, and the K value reaches 1.2).

(5) Sound insulation performance: also known as sound insulation and noise reduction, refers to the ability to reduce the sound transmission between the sound source and the listener, which is divided into six levels, and the system doors and windows are not lower than the third level standard. (Wang Mei doors and windows series 98 comes standard with Grade 4, and the sound insulation increases with the increase of glass configuration. )