First, aluminum allothermal insulation external casement window sets multiple sealing strips between the window sash and the window frame. These sealing strips are compressed by the locking device when the window sash is closed to form an effective seal, thereby preventing the penetration of air and water.
Secondly, the reasonable overlap design between the window sash and the window frame is also the key to ensure air tightness and water tightness. The size of the overlap directly affects the sealing effect. Usually, in order to ensure good sealing performance, the overlap should not be too small, and generally needs to meet certain size requirements.
Furthermore, for the push-pull aluminum allothermal insulation external casement window, increasing the water retaining height of the indoor side flange of its lower frame can effectively enhance the waterproof performance. This design can prevent rainwater from penetrating into the room from the gap between the window sash and the lower frame.
In addition, the use of sealing materials with good durability and good elasticity is also an important factor in ensuring air tightness and water tightness. High-quality sealing strips and sealants can maintain their sealing performance for a long time and are not easy to age, deform or fall off.
In the structural design of doors and windows, it is also essential to reasonably set up drainage holes and drainage systems. The size and position of the drainage holes need to be carefully designed to ensure smooth drainage and prevent water accumulation and leakage.
At the same time, enhancing the stiffness of aluminum alloy door and window rods can also help improve the sealing performance. The increase in stiffness can reduce the deformation of the window sash under wind pressure, thereby maintaining the compression state of the sealing strips.
Finally, the application of multi-point locking devices is also an effective means to improve air tightness and water tightness. By increasing the number of locking points, the sealing performance between the window sash and the window frame can be further improved to ensure that a good sealing effect can be maintained even under severe weather conditions.
Through reasonable sealing strip design, overlap design, water retaining height design, sealing material selection, drainage system design, rod stiffness enhancement and the application of multi-point locking devices, the air tightness and water tightness of aluminum allothermal insulation external casement windows can be effectively guaranteed.
