The following shall additionally be required of all two-family dwelling structures:
(a) Inhabited third-floor areas in two-family dwelling structures shall be equipped with at least one (1) smoke detector installed in a manner and constructed in a fashion approved by the Fire Prevention Bureau of the City of Garfield Heights.
(b) Inhabited third-floor areas in two-family dwelling structures shall have at least two (2) means of egress to the outside of the dwelling structure, such as a stairwell and a chain ladder securely fastened to the dwelling structure and readily hung outside an operable window in the event of an emergency. All means of egress from such areas shall be subject to the approval of the Fire Prevention Bureau of the City of Garfield Heights.