False ceilings are constructed below the main ceiling and help hide ducts, wiring, and other elements. There are various types of false ceilings including POP, gypsum board, wooden, PVC, metal, glass, fiber, and fabric/synthetic materials. Each type has advantages like easy installation, insulation, and durability as well as disadvantages like moisture issues, maintenance needs, and costs. False ceilings improve interior aesthetics, organization, insulation, and more.