Facility Services employees roped off the area around the Hill Memorial Library Monday afternoon after several large pieces of the building’s facade fell off. Sam Territo, associate director of Facility Maintenance, said the building’s age could have caused the pieces to fall off but it also could have been caused by rainwater seeping into the facade and breaking the bond between it and the structural wall. Territo said it will probably take employees the rest of the week to determine which parts of the building are structurally sound and which need to be replaced. No one was hurt by the falling pieces of concrete.