Windows often fall off. Why do high-rise buildings use windows that open inside and turn inside out?

High-rise buildings use internal windows for the following reasons:

1, the first thing to consider when opening a window is safety, and safety comes first;

2. When some external windows are open and some are not, the overall sense of the architectural appearance is destroyed;

3. The outer window opens outward, and the window sash is exposed to wind, sun and rain, which is easy to fade and corrode. Usually, due to the high wind pressure in coastal areas, according to the national Technical Code for Windows and Doors Application in Residential Buildings (4. 1. 10) and the national Technical Measures for Civil Buildings, casement windows are not suitable for high-rise buildings.