The window wall is divided into two types: single-layer and double-glazed. window wall is a beautiful and novel method of building wall decoration, which is a distinctive feature of the era of modernist high-rise buildings.

The window wall is the outer wall of the building. It is not load-bearing and hangs like a curtain, so it is also called a hanging wall. It is a lightweight wall with decorative effects commonly used in modern large and high-rise buildings. The building envelope is composed of a structural frame and inlaid panels, and does not bear the load and effect of the main structure.