To construct 10-1/2 feet of 1-hour rated corridor walls from floor to concrete roof deck above and install two 20-minute door assemblies to create a storage closet around some existing equipment with-in the existing rated exit corridor. To infill an existing door & window with noncombustible, fire-resistive construction. "Letter of Cpmpletion" required as evidence of inspection approval and project completion per approved plans by the fire & structural inspectors. NOTE: This building is fully fire sprinkled. PC#98-513/drs