A Contractor's Guide to Asbestos Don't expose your crew and customers to health hazards, and yourself to lifelong liability. by Gerald L. Wykoff The remodeler contracted to redo the interiors of four adjacent shops in a small shopping center. Among the many routine tasks involved was removing the ceiling and changing the airdelivery system. A pre-bid visit to the shopping center turned up nothing unusual. The 1972 structure featured the usual technology then in use, including a drop ceiling under an open plenum through which the mechanical system supplied air. Within two days after starting the job, though, the contractor discovered that he faced a serious problem—one he hadn't anticipated or covered in his original bid. As soon as his employees ripped out