Why gypsum Ceiling system? Gypsum Ceiling System provides enclosures and separation between spaces, they help control the diffusion of light and sound within a room. Aside from its beautiful appearance, Gypsum Ceilings also help prevent the passage of sound from one room to the other. Gypsum boards have fire resistant properties and may also accommodate building services such as vents, lighting, sprinkler heads and so on, as well as being able to conceal other services such as ducts, pipes and wiring.