A false ceiling is also commonly known as a dropped ceiling. It is also called a suspended ceiling, a secondary ceiling, or a hung ceiling. The false ceiling is very widely used in modern construction, especially in offices and basements.
Advantages of a False Ceiling
There is a small space between the actual ceiling and the false ceiling, which is perfect for hiding wiring, pipes, duct work, and insulation. The HVAC duct air returns are often put through false ceilings in offices or large buildings, since it hides the ductwork and no holes or channels have to be cut into the existing ceiling. The area above the false ceiling is called the plenum space.
False ceilings can deaden sound. qualities. In fact, it was originally developed to in regard to acoustic problems in a room. Over the years, the efficiency of a false ceiling for sound absorption has greatly increased.