A. Applicability: The area, height, number of stories and other requirements listed below for the upper building with both single construction and mixed construction methods constructed under this chapter shall comply with this section.
B. Conditions Specified: The upper building, containing Group R-2 occupancies with accessory uses as described in section 9-3-3 of this chapter, building area, building height, including allowance of the number of stories to be increased up to a maximum of five (5) stories, shall comply with the following conditions:
1. The tabular area increases for a sprinklered building in IBC chapter 5 are not permitted; however the tabular allowable area for a nonsprinklered building of Group R-2 occupancy of type VA construction may be increased by twenty five percent (25%) per floor over the area value listed in the allowable area table of the IBC. This area increase is calculated separately and is added in addition to any other area increases allowed for frontage increase and single occupancy, multi-story buildings in chapter 5 of the IBC; and
2. The building shall be sprinklered in accordance with National Fire Protection Association (NFPA) Standard 13; and
3. For mixed construction, the R-2 occupancy area may be increased to seventy feet (70') in height, provided the finished floor of the highest occupied level does not exceed seventy five feet (75') and the overall building height does not exceed ninety five feet (95') measured from the lowest fire apparatus access road to the building. For single construction, the maximum overall building height shall not exceed seventy feet (70') in height above the lowest fire apparatus access road; and
4. The structure shall be located in the City Fire Department's response zone as illustrated in section 9-3-2 of this chapter; and
5. The exit access travel distance specified in chapter 10 of the IBC shall be reduced by forty percent (40%) for Group R-2 occupancy; and
6. Unless otherwise required to be a higher rating by the Code, all exterior walls shall be constructed with a minimum of a one hour fire resistive wall assembly rated for exposure to fire from both sides. The exterior wall finish materials per chapter 14 of the IBC shall be of noncombustible material as described in chapter 7 of the IBC; and
7. Pressurized interior exit stairways shall be provided in accordance with the requirements of the IBC for every required exit stairway. All required exit stairways shall provide roof access.
Exception: The Fire Code official is authorized to reduce the number of roof access stairways or pressurized interior exit stairways to not less than two (2). (Ord. 21-16, 7-19-2016)