(GREYSTONE BLDG) This building is fire sprinklered to substitute for 1-hr fire-resistive construction of the building. To modify an existing stairway serving a 3 story building to comply as a 1-hr stair enclosure. Work is to include new 1-hr doors, new 1-hr walls, upgraded 1-hr ceilings, upgraded 1-hr walls, and penetration protection all per approved drawings and plan review conditions on file. The location of fire sprinkler heads shall comply with NFPA 13-1999 as regulated by the Fire Department. PC-0675-01 **CJW**