Suspended ceilings, also known as ceiling panels, are an important sub-project of building decoration engineering. They serve multiple functions, including heat insulation, sound insulation, compensating for inherent structural defects, adding spatial depth, facilitating lighting, simplifying cleaning, and sound absorption. They also conceal electrical, ventilation, air conditioning, communication, fire protection, and alarm wiring and equipment. Traditionally, traditional dwellings primarily used straw mats, reed mats, and wooden planks. With technological advancements, more modern building materials have been incorporated, including gypsum board, calcium silicate board, cement fiberboard, and PVC board. The choice of ceiling material varies depending on the specific needs of the residence.