Section 705.2.3.1 is amended to read as follows: "Balconies and Similar Projections." Balconies and similar projections of combustible construction other than fire-retardant treated wood shall be fire resistance rated where required by Table 601 for floor construction or shall be of heavy timber construction in accordance with Section 2304.11. The aggregate length of the projections shall not exceed 50 percent of the building's perimeter on each floor. Existing balconies which are subject to repair or replacement due to deterioration or damage shall comply with this Section. Section 705.2.5 is added to read as follows: "Soffits of Roof Projections." Exterior walls in R-1 and R-2 occupancies meeting the requirements of Section 705 shall be provided soffits comprised of noncombustible material one-half (1/2) inch in thickness. No soffit screens or openings are permitted within the soffits. Exception: Building equipped with an automatic sprinkler system in habitable areas are permitted to have unlimited soffit vents.