§ 27-521.12 Construction; general.
AC § 27-521.12
(a)A mall may be constructed only in buildings in noncombustible construction groups 1-A, 1-B and 1-C.
(b)The minimum horizontal clear dimension at any level in a mall shall be twenty feet.
(c)Where different tenancies have openings to a mall the tenancies shall be separated in accordance with section 27-341 of article five of subchapter five of this chapter.
(d)All openings between a mall and other spaces shall be provided with a noncombustible draft curtain that shall extend downward a minimum of twenty-four inches below the lowest ceiling adjacent to such draft curtain or shall meet the requirements of clause three of subparagraph d of paragraph three of subdivision (h) of section 27-370 of article five of subchapter six of this chapter relating to show windows.













