1. Black mirror is the most common material for ceiling black line, and the raw material is glass, which is inconvenient to transport.
2. Moreover, it is not easy to cut out a smaller size in the construction process, so as long as it is a black line smaller than 2cm, it is not suitable to use a black mirror.
3. Moreover, black glass glue and black latex paint lack three-dimensional sense, and the decorative effect can't reach the feeling brought by black mirror.
The above is about the drawbacks of the black line on the ceiling, hoping to help netizens.