Because air is a poor conductor of heat, it prevents heat from entering the room. As a result, power bills are reduced. False ceilings are used instead of open spaces or cheap insulation because they provide soundproofing as well. False ceilings are made of panels that are attached to the structural beams above the room. The panels are painted to match the decor of the room or left blank. Hot gases created by a heating system cannot rise through a void, so they do not reach the ceiling fan or heater. This means that heat does not migrate to other parts of the house through the ceiling. False ceilings can be constructed out of many different materials including wood, steel, and plastic. They can be flat or have design elements such as moldings and trim. The choice of material depends on the look you want to achieve and your budget. A wooden ceiling may be done in a variety of styles from traditional to modern. A metal or plastic ceiling might be designed for industrial style homes. Ensure you get estimates from more than one contractor before making a decision. False ceilings can be removed in some cases. This is useful if you plan to renovate your home and need to access the roof. Alternatively, you could replace the entire ceiling with one that better fits your needs.