What should I do if there is a big gap in the plastic window?

If the window gap is large, it is best to add an extra layer of plastic steel window. If the gap is relatively small, the sealing strip can be directly attached.

Causes of air leakage in plastic steel doors and windows;

1, the sash size is too small, resulting in insufficient lap up and down or left and right.

2. The sealing cover used is non-standard consumables, which affects the sealing degree.

3. There is no ventilation block between the upper and lower rails of the frame, or there is no staggered opening inside and outside when milling the drain hole, and the drain hole cover is not covered properly.

4. The sash is too high, the steel lining in the cavity is too thin, or there is no steel lining, which causes the sash to bend and deform and leak air when the wind blows.

5. The installation of the window frame is unqualified, the lower rail is not horizontal, and the fan is tilted after installation, which can not be adjusted, resulting in lax closing.

6. The models of main materials and auxiliary materials of materials do not match.