Section 29(i) in The U.P. Cinematograph Rules, 1951
(i)Construction - It shall consists of a smoke-proof box constructed of sheet iron or steel on a substantial framework and securely fastened together. The internal height from the floor to roof shall be at least ten feet. The floor shall be 48 square feet if one machine is operated and 24 square feet for every additional machine shall be necessary. The room shall be of such width as may allow sufficient space behind the machine for operators to pass easily. The building shall in every other respect conform to the requirements of a projection room in a permanent building: Provided that, if the temporary enclosure is kept in situ or stored on the premises and does not travel with a portable apparatus thereby avoiding risk of breakage, such enclosure may be of asbestos sheeting or other type of fire-resisting material on a substantial fire-resisting framework, the type of fire-resisting material used shall be approved by the Regional fire Officer.
