The subsurface throughout the lobby was pre-existing granite which made the surface micro flat, ideal for tile-over-tile installation. Any demolition would have to be done during non-working hours, and demolition costs become significant by extending timelines. With Crossville’s gauged porcelain tile panels, there was essentially no demolition needed. One of the concern areas regarding the tile-over-tile installation was the transitions to the elevators, but the installers were able to run the tile panels flush up to the threshold with no ramping needed.