Aluminum alloy doors and windows are classified according to their opening methods. At present, the more popular and practical window types in the market are push-pull window and casement window.
Aluminum alloy casement windows are widely used in commercial and residential buildings, office buildings, high-grade residential buildings, villas and other medium and high-grade buildings;
Aluminum alloy sliding window is widely used in industrial plants, rural housing and other low-grade buildings.
The main reason is that the casement window is better than the sliding window in the performance, but the sliding window is better than the casement window in the processing and operation.
Casement window refers to the door and window that the hinge (hinge) is installed on the side of the door and window to open inward or outward; the sliding window mainly refers to the door and window whose sash is vertically pushed and pulled along the horizontal direction. Push pull and flat opening are compared with the same glass and fittings. Each has its own advantages, the following is the appearance of doors and windows, performance, price and use of functions and other aspects of their own characteristics.
The difference between the casement window and the sliding window in appearance lies in the collocation with the overall style of the building. Due to the flexibility of the partition, the casement window can make the facade effect of any line. Moreover, for the floor to floor window with large partition, the opening fan only accounts for a small part of the whole window, so it is more suitable for high-grade buildings with strict requirements on the overall effect of the building Not in line with the architect's pursuit of large division, spacious and bright, good transparent effect, harmonious appearance of the building. Because the opening position of the sliding window can only be horizontal, it is difficult to match with the fixed glass with large division. Generally, it is more suitable for opening workshops or rural family buildings with clear horizontal and vertical lines.
In terms of the three properties of doors and windows (wind pressure resistance, water tightness and air tightness), casement windows are generally better than sliding windows. The wind pressure resistance performance of aluminum alloy doors and windows depends on the resistance moment of the main load-bearing member of the door and window. The larger the section of the profile is, the greater the resistance moment is, but not completely proportional to it. The sectional area of casement window is generally small, but its main load-bearing members are usually assembled or vertical materials, which will be strengthened in the design process, so its wind pressure resistance performance is better. Generally speaking, the section section of push-pull window is relatively large, so its wind pressure resistance performance should be better. However, as long as a little in-depth stress analysis, it can be known that the main load-bearing member is often middle fan material, and its upper and lower stiles only rely on pulley to bear the horizontal wind load, so the wind pressure resistance performance is generally not ideal. The water tightness of doors and windows depends on the sealing effect of the opening part. The side opening windows are generally sealed with rubber strips, while the sliding windows are generally sealed with wool strips. The sealing effect of rubber strips is generally better than that of wool strips. In terms of air tightness, two-point lock or heaven and earth lock are widely used for locking and sealing of casement windows on the market, and the sealing effect is better. However, the sliding window is usually locked by hook lock or latch, and its sealing effect is not ideal. Therefore, the casement window is generally better than the sliding window in three aspects. This is why most high-end commercial and residential buildings choose to use casement windows.
3、 Keep warm
At present, the sealing performance of the general sealing strip is better than that of the sealing strip in the market. The two-point lock or the heaven and earth lock are often used to lock and seal the window, and the sealing effect is better. However, the sliding window is usually locked by hook lock or latch, and its sealing effect is not ideal.