Current through Register Vol. 44, No. 9, September 25, 2020
Section 61-91.1800.1806 - Firewalls (I)A. A building is defined by the outside walls and any interior four-hour firewalls and shall not exceed the height and area limitations set forth in the current building code as listed in Section102.B for the type of construction.B. An addition shall be separated from an existing building by a two-hour, fire-rated wall, unless the addition is of equal fire-resistive rating.C. When an addition of a different type of construction from the existing building is planned, the type of construction and resulting maximum area and height limitations allowed by the current building code as listed in Section102.B shall be determined by the lesser of the types of construction of the building.D. If the addition is separated by a four-hour firewall, the addition is considered as a separate building, and the type of construction of the addition shall determine the maximum area and height limitations.
S.C. Code Regs. 61-91.1800.1806