A group of USC students, led by the Conservation Voters of S.C., visited Denmark-Olar Elementary School in Bamberg on Saturday to weatherize two portable classrooms as a way of helping the "corridor of shame" school become more energy efficient and potentially recoup some money. The group also conducted a walk-through of the school's main building to see what cost-saving measures they could help out with on a return visit. Here, Maintenance Supervisor, Jimmie Shepherd, examines particle board that was put in place to block sun from coming into, and heating up, classrooms. C MICHAEL BERGEN — mbergen@thestate.com Buy Photo