First floor of building has an automatic sprinkler system. Use of existing building with new addition is single occupancy on each floor. Floor area meets Table No. Court occurs as a result of best attachment of new structure to existing building due to glazed corner condition of existing building. Openings in new addition are desired for maximum natural light.
New addition is extension of same use in existing building.
Use and single occupancy of building is not likely to change in future. I construction shall be of noncombustible materials. Underside of canopy is exterior gypsum board. Plywood is fire retardant treated. Plywood is covered with noncombustible copper on top and protected with metal decking and gypsum board below, providing equivalent protection for plywood.