In winter, cold areas in the north generally like to seal doors and windows, because it will be warmer. So, what aspects should be paid attention to in the sealing of doors and windows in winter? Let Jinfudun aluminum-clad wooden window manufacturers introduce you to the four major precautions:
Uneven door and window profiles
The main reason for the air leakage of doors and windows is the tightness between the door and window sash and the frame, and the flatness of the profiles is an important factor affecting the tightness. If the flatness of the profile is insufficient or deformed, there will be a gap between the door and window sash and the frame, resulting in air leakage.
The quality of the sealing strip is defective or aged
The sealing strip is the key to the sealing of doors and windows, and the quality of the sealing strips on the market varies greatly. The sealing strip has strong toughness, strong wear resistance, and is not easy to break; while the sealing strip of poor quality is very fragile, easy to corrode and break, and cannot achieve the sealing effect. If the sealing strip is not installed properly, unevenness or bulging occurs, it may cause air leakage.
Cracks between frame and wall
In the process of door and window installation, many winter door and window sealing workers did not do a good job of sealing between door frames, window frames and walls due to rushing or cutting corners. Especially in old houses, the walls loosen during the settlement process, and the tightness between the doors and windows is reduced. If the waterproof glue is not evenly spread, the sealant is not done enough, or the expansion bolts are not nailed, it will make the frame and the wall unable to "fit tightly". It is easy to collapse in the rainy weather in summer, and cause air leakage in autumn and winter.
Hardware buckle is not strong
The quality of door and window hardware is also closely related to sealing performance. Especially casement windows, which rely on the drive of the hardware to seal, if the quality of the drive is not good, it is easy to leak from the edge of the window sash. The door and window hardware currently on the market is divided into domestic and imported. Domestic hardware generally has two lock points, upper and lower, while imported hardware usually has three lock points, upper, middle and lower. The principle is that when the door and window are locked, the lock point and the lock seat are firmly buckled together, and cooperate with the hinge or sliding support to generate a strong sealing pressure, so that the sealing strip is elastically deformed, thereby providing sufficient sealing performance for the door and window. Therefore, the hardware with weak lock will greatly reduce the sealing performance of doors and windows.
