Do the sealing strips of UPVC casement windows need to be checked regularly for damage or aging?

The sealing strip of UPVC casement windows does need to be regularly inspected for damage or aging. This is because sealing strips play a crucial role in the sealing performance of windows, effectively blocking the intrusion of air, moisture, and dust, thereby maintaining indoor comfort and cleanliness.
Over time, the sealing strip may gradually age or be damaged due to environmental factors such as sunlight, temperature, humidity, and frequency of use. Aging sealing strips may become hardened, deformed, cracked, or lose elasticity, resulting in an inability to tightly fit the window frame and affecting the sealing effect of the window. In addition, damaged sealing strips may also cause problems such as loose window closure, air leakage, and water leakage, causing inconvenience to residents.
Therefore, in order to ensure the normal use and sealing performance of UPVC casement windows, it is recommended to regularly inspect the sealing strips. The inspection includes observing whether the sealing strip has cracks, damages, or deformations, and gently pulling the sealing strip by hand to check if it is easy to fall off or loosen. If signs of aging or damage are found on the sealing strip, it should be replaced promptly to ensure the sealing performance and service life of the window.