Lead Drywall: also referred to as Lead-Lined Sheetrock, Gyproc, Wallboard or Lead-Lined Gypsum Board. It is designed to cover necessary surfaces or walls in a room requiring radiation shielding. It is affixed to surfaces or walls ensuring a continuous layer of sheet lead under the drywall to a specified height. It is used in new construction or shielding upgrades/renovations for P.E.T and other types of diagnostic imaging rooms.