The advantages of European-style sliding window are that it can be used as a high window, with large cavity of stiffener and good wind pressure resistance. However, the sash rides on the frame guide rail, and the air tightness and water tightness are poor due to the gap between the inner and outer sash and the gap between the bottom frame and the bottom of the sash. Although adding windproof cushion can improve air tightness, it can't cure it. In winter in cold regions, when the snow is frozen in the grooves of the frame, the window cannot be pushed. In addition, the profile consumption is large and the window opening rate is low.
The structure of American sliding window is that the sash is inserted into the frame to move, which has good air tightness and water tightness, beautiful facade, varied ribs in the cavity, unique design and high window opening yield. However, it is not suitable for making windows that are too high, because the cross section of the stiffener is small, the wind pressure resistance is limited, and the pulley structure is too small.
European casement windows have good wind pressure resistance, and there are few types of profiles that make up the windows. However, due to the high quality, the strength of sliding support connecting rod, hinge and other hardware is required. Generally, the maximum size of sliding casement window can only be 1.2m, and there must be two locking points when the height of the sash is greater than 900mm, so the section is large and the daylighting rate is low. It is inconvenient to add inner screen window, which hinders the utilization of indoor space.
American sliding window adopts manual shutter with turbine scroll bar structure. Window sash can be parked in any position and has self-locking function. When opening and closing, you don't have to stick your hand out of the window. You can use a fixed screen window, which is installed indoors. It is simple, clean, in line with national conditions, with good sealing and high window rate, but the price of hardware is high.
American pull-up window is divided into double pull-up and single pull-up There are three kinds of hardware: spring type, steel belt shutter type and unequal distance screw type, which are reliable and practical. However, the structure of double-lift window is complex and the price is high, and the single-lift window is most suitable for China, especially in the hot summer areas in the south, and rolling shutters can be installed, which will be favored by the market.
In short, European and American windows have their own advantages, but the disadvantages are that the European profile is too large, the window yield is low, and the lighting coefficient is low. American windows should not be high sashes, and there are many combined profiles. There is a kind of glass bead supported by plastic bending elasticity, which is easy to relax, and the pulley of sliding window is too small.