According to leading consumer and trade magazines, the US Department of Energy, the heating and cooling contractor you choose does make a difference. The same equipment can be installed in the same home by two different contractors, and there can be a difference in comfort, equipment efficiency, and overall life. 

Acoustical ceiling tiles are a type of covering that is added to the ceiling of a room or rooms. They typically serve the purpose of soundproofing the room in which the tiles are installed. Typically, acoustic ceiling tiles are made of a different material than standard wall or floor covering tiles. This is because the acoustical tiles need to abso

Information on the type of underlayment, flashing, shingles and ventilation being used, and the type of product and workmanship warranties offered. Proof of roofing or contractor's license (if required in your city or state).

Most ceiling tiles are made from mineral fiber, but other materials are available, such as fiberglass. Mineral fiber tiles typically have a high Noise Reduction Coefficient (NRC), which means they are good at absorbing sound within a space to prevent echo or loud environments.