The codes authorized in Code Section 36-13-1 may embrace such matters as the preparation and submission of plans and specifications; issuance of permits; standards governing the kind, quality, and performance of materials, equipment, and workmanship; establishment of fire zones; fireproofing; means of egress and ingress; floor area per occupant; and sanitary facilities and usage proceedings in connection with unsafe, unsanitary, or inadequate structures. The enumeration in this Code section shall not be construed as being exclusive.