Multiple dwellings which have public access areas must have panic bars on those doors which would be used as exits in case of fire or other similar emergency situations. There must be one such exit door per floor so equipped. These exit doors must be hinged in such a way that they swing open outwardly, i.e., away from the interior of the building. Any multiple dwelling which has a fire escape must have all doors leading to said fire escape hinged so that they open outwardly, i.e., away from the interior of the building.
Fire escapes of construction approved by the Housing Officer are required on non-owner-occupied dwellings from the third floor (and higher) level above ground. Fire escapes are to be constructed of steel or reinforced concrete. Steel chain ladders approved by the Housing Officer may be used as an alternative to permanent, fixed fire escapes.
All non-owner-occupied dwelling units shall have one battery-operated fire and smoke detector with an operative test device per dwelling unit. Multiple dwellings with public access areas shall have one additional fire and smoke detector per floor, located to the specifications of the Housing Officer so as to provide maximum protection. The type of fire and smoke detector device installed under this section shall be approved by Underwriters' Laboratories approved and approved by the Housing Officer.
Fire extinguishers which are of the kind approved by the Housing Officer shall be required as follows:
A. 
Multiple dwellings with four or fewer dwelling units per floor: one fire extinguisher (ten-pound, ABC rated) per floor, located in a public access area in a central location.
B. 
Multiple dwellings with five or more dwelling units per floor: one fire extinguisher (ten-pound, ABC rated) per multiple of four units, located in a public access area in a location as approved by the Housing Officer.
C. 
Multiple dwellings not having public access areas: one fire extinguisher (ten-pound, ABC rated) per dwelling unit.
If any one-family dwelling, two-family dwelling or multiple dwelling is attached in any fashion by a common wall or in any manner shares a common wall, said common wall shall be a fire-separation wall having a minimum two hours' fire-resistance rating that shall serve to completely separate the dwelling units. Said fire-separation wall shall extend from the foundation to the underside of the roof sheathing and to the inside of the exterior wall sheathing. All terms used in this section shall carry the meanings as defined and recognized in the BOCA Basic Building Code as said code exists at the time of the enactment of this section and as such code may, from time to time, be amended.
The provisions of §§ 184-24 through 184-28 shall apply to all new construction within the Borough of Marietta after May 13, 1980, and shall also apply to all commercial and industrial properties which are converted into apartments and/or multiple dwellings after May 13, 1980.