I. Advantages and disadvantages of casement windows
1, advantages of casement window
At first, the structure was simple, the whole door was open when it was opened, and the sealing performance was particularly good when it was closed. Unlike sliding windows, there is no moving pulley, and the sealing performance is much better. Because the sliding window is a moving pulley, even if the sealing strip is installed, it will be damaged for a long time, so the casement window has an advantage here. Secondly, the natural ventilation of casement windows is also very good, because of its good sealing.
It has excellent sound insulation and noise reduction, heat insulation and impermeability. In practice, casement windows are also divided into two ways: separate and open. The advantage of internal opening is convenient cleaning, and the characteristic of external opening is that it does not occupy indoor space design. Finally, the interlocking hardware and door handles arranged around the casement window can be actually operated indoors, and when the window is closed, it can be fixed around the window, which has better safety factor and anti-theft performance.
Screen window integrated casement window
2. Defects of casement windows
If you choose to open the casement window inside, it will occupy the indoor space design, which is not suitable for small-sized apartments and is not recommended for small-sized apartments. The overall window width of the casement window is small and the line of sight is not wide. Secondly, if you choose the casement window, it is very easy to be damaged in the case of strong wind, for example, it is not fixed properly, the laminated glass is damaged or the window explodes immediately, which is very prone to accidents.
And it is easy to rust and break after a long time. Finally, the use of window screens, curtain cloth and other layers. For example, in summer nights, the room should be ventilated, and the curtains are not tight. There is also a poor safety factor. Children are likely to bump into each other when they are playing, and we are likely to bump into each other when we are cleaning and standing up with our heads down.
Advantages and disadvantages of sliding window
1. Advantages of the sliding window: The sliding window adopts a window with a movable pulley and slides on the track on the window. The advantage of this kind of window is that it does not occupy extra indoor space regardless of the power switch, and its structure is relatively simple.
Aluminum alloy profile sliding window
2, sliding window defects: at most, only 50% of the window can be opened, and the sealing performance is poor when closed. In recent years, there are new technologies to improve the sliding window, which can send several windows to one side to expand and contract. At the same time, it is also a sliding window with improved sealing performance, but overall, it still can't reach the thermal insulation performance of casement windows, and its energy consumption is high, so this kind of window is rarely used in excellent China.
The casement window is superior to the sliding window in performance, so the casement window with the same quality is generally more expensive than the sliding window, but the sliding window is superior to the casement window in production, processing and actual operation. For these reasons, casement windows are widely used in commercial and residential buildings, office buildings, high-grade houses, single-family villas and other high and medium-grade engineering buildings in big cities; However, sliding windows are widely used in low-end engineering buildings such as factories and rural houses.
1. Appearance: The difference between casement window and sliding window depends on the matching with the overall design style of the building. Because of its great coordination ability, casement windows can make all the practical effects of wireframe building facades, while for large floor-to-ceiling windows,
The casement only occupies a small part of the whole window, so it is more suitable for high-end new buildings with strict regulations on the overall actual effect of the building, especially for engineering buildings with perfect, clean and tidy large compartments, excellent light transmission effect and harmonious and smooth appearance pursued by architects. Sliding window is only a horizontal sliding door, which can not be consistent with the fixed laminated glass in the big compartment. It is generally suitable for opening industrial workshops or rural home engineering buildings with clear horizontal and vertical wireframes.
2. Performance: In terms of the three properties of doors and windows (air pressure resistance, sealing and sealing), casement windows are generally superior to sliding windows. The wind pressure resistance of doors and windows lies in the resistance moment of the main load-bearing components of doors and windows. Generally, the larger the cross section of aluminum profile, the greater the resistance moment, but it is not perfect positive correlation. Aluminum profiles for casement windows are generally small in cross-section, but their main load-bearing components are flat-fell seams or middle vertical materials.
In the design process, the main load-bearing member will rise correspondingly, so its air pressure resistance is good. Generally, the aluminum section of sliding window is relatively large, so it should have good air pressure resistance. However, as long as we make a little in-depth stress analysis, we know that its main stress component is usually the middle fan material, and its left and right vertical frames only rely on moving pulleys to bear the horizontal wind load.
Therefore, atmospheric pressure resistance is generally not ideal. The tightness of doors and windows lies in the actual sealing effect in the open position. Generally, casement windows are sealed with sealing strips, and sliding windows are sealed with silicified tops. The actual sealing effect of sealing strip is generally better than that of silicified roof. At the sealing level, at present, two-point locks or security doors are often used to seal the casement windows.
The actual sealing effect is good. However, the sliding window is usually clamped by hook lock or anti-theft door lock, and the sealing effect is not ideal. Therefore, casement windows need to be superior to sliding windows in three aspects. This also happens to be the reason why most high-end commercial and residential uses choose to apply casement windows.
3, cold and warm: sealing sealing strip sealing silicified tops From the perspective of thermal insulation performance, the current casement windows on the market generally use sealing sealing strips for sealing.
However, sliding windows are generally sealed with silicified roof, and the actual sealing effect of sealing strip is generally better than silicified roof. Commonly used two-point lock or anti-theft door handle to seal casement window, the sealing effect is good. However, the sliding window is usually clamped by hook lock or anti-theft door lock, and the sealing effect is not ideal.
4. Price: There is little difference between casement window and sliding window at the same price, and casement window is slightly higher than sliding window. Generally, the price of aluminum alloy doors and windows for sliding windows is 200 ~ 350 yuan/square meter, and the price of high and medium-grade windows is more than 4,600 yuan/square meter. General sliding door 150 ~ 200 yuan /m2. Processing technology: the production and processing of Wang Xiao's chainsaw, a multi-head aluminum cutting machine of angle punching machine,
Sliding windows are generally simple in structure and have no special requirements for mechanical equipment, and are produced and processed by small processing plants of small chain saws; Because the casement window is connected by 45-degree thick aluminum alloy T-nut, it is necessary to be a "corner punch" and a "multi-head aluminum cutter" to make high-quality aluminum alloy profile casement window.
Sliding windows are generally simple in structure and have no special requirements for mechanical equipment, and are produced and processed by small processing plants of small chain saws; Because the casement window is connected by 45-degree thick aluminum alloy T-nut, it is necessary to be a "corner punch" and a "multi-head aluminum cutter" to make high-quality aluminum alloy profile casement window.