The sealed balcony pushes the middle position somewhat like the bouncy dangling is what s going on

The overall quality of the balcony sliding door is closely related to the installation. If the improper installation leads to too large door gaps in the balcony sliding door, it will have a greater impact on the sound insulation effect. As a consumer, you can check the door crack by yourself:

First of all, see whether the size of the door crack is compliant; Secondly, close the door and check whether the upper seam of the door is balanced, and whether there is a situation where one side is wide and the other is narrow. If it is unbalanced, it means that the door frame is not safe, which affects the appearance; If you find a gap between the door frame and the wall, it is likely that the wall is not vertical or uneven in thickness, you can contact a worker to deal with it and seal it with sealant. But not all gaps have to be filled tightly.

For example, when installing a balcony sliding door, the gap between the door frame and the wall does not need to be filled with foam glue. Foam glue is elastic and plastic, if it is played too tightly, the door frame will be pushed out, and the door cannot be closed.