Abstract: An apparatus comprises a track system. The track system comprises a first straight track portion, a first curved track portion, and a second straight track portion. The track portions are engaged with each other to form a continuous track. A plurality of simple connectors are engaged with the straight track portions, and a plurality of split connectors are engaged with the curved track portion. A plurality of threaded rods have a top end portion and a bottom end portion. The bottom end portions are engaged with at least some of the plurality of connectors. The top end portions are engaged with a frame structure. A roller is adapted to be moveable along the track system. A curtain is engaged with the roller for moving the curtain between an open position and a collapsed position along the track system in a generally looping motion.