A kiln or room designed, erected, altered, or converted for the purposes of drying lumber, wood products, or wooden articles by artificial heat shall have an enclosure of two-hour fire-resistive construction, if it has a floor area of 500 square feet or less, and of three-hour fire-resistive construction if it has a floor area of more than 500 square feet. No such kiln or room shall have any opening except a doorway or doorways between such room and any other part of the building. Every doorway into any such room shall be provided with a door of the character as required by Chapter 14B-7.
(Prior code § 92-60; Amend Coun. J. 10-7-20, p. 21791, Art. VI, § 89)