[Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. II)]
The fire limits of the City of Walhalla shall be established as the corporate boundaries of said City. Within said fire limits no new building or structure shall be constructed of anything but incombustible materials, as defined by the Underwriters' Association, and no additional room or rooms shall be added to any building already in existence, unless they shall conform to said regulations; provided, however, that a piazza, or such skeleton construction, may be added to any dwelling house when same is covered with some standard grade of incombustible roofing, as provided by the rules and regulations of the Underwriters' Association.