S.C. Code Ann. § 10-1-70: Roofs of public buildings, fireproof and noncombustible materials requirements.

Every public building erected, enlarged or reroofed after May 27, 1936, whether owned by the State or a county or school district, shall have the roof of such building and also the roof top and sides of all roof structures, including dormer windows, covered with fireproof and incombustible material.