Metal cassette ceilings can be installed on top of the old ceiling or if a new room is being built. The metal cassette ceiling is made out of interlocking thin metal sheet cassettes that have been bolted together from the angles as an upright web. This acquires only a little leveling work and the installation is rather quick and uncomplicated after fast assembly. In the metal cassette ceiling there are no gaps between the surfaces, thus there is no possibility that germs or bacteria can get into the cracks.
The advantage of metal cassette ceiling is that it has a really smooth surface that is extremely easy to clean. Thus, they are quite widely used in hospitals and other institutions that need very clean environment.
Metal cassette ceilings are not very widely used at private homes as they have specific appearance and thus just simply do not suit with the atmosphere of a home. Of course, extremely modern and futuristic houses are just made for metal cassette ceilings.
So when the next time you have to visit a hospital or some other similar institute, look around and you will most probably see a smooth, shiny metal cassette ceiling looking down on you.