[elevatorman]

If your home was built before 1982 have the ceiling tested for asbestos before removing. Prior to '79 use of asbestos was a common practice for durability & fire protection. It was banned in '79 but contractors were allowed to use their existing stockpile asbestos. If left in place it is not a problem but when removed it can become airborne. Disposal of asbestos requires a licensed contractor and can be expensive