Section 42 in Kerala Municipality Building Rules, 1999
42. Fire escape staircase.
(1)Fire escape stair case shall be provided for every buildings of,-(a)residential occupancies exceeding three storeys above ground level;(b)occupancies other than residential exceeding two storeys above ground level.(2)The width of fire escape staircase shall be not less than 75 cm, the width of fire escape stair tread shall be not less than 15 cm, the height of the fire escape stair riser shall not exceed 19 cms, and the number of riser shall not exceed 16 per flight of stairs.(3)The height of handrail of a fire escape staircase shall not be less than 100cms.(4)Fire escape stair shall be constructed only in the exterior of the building and shall be connected directly to the ground.(5)Fire escape stairs shall have a straight flight.(6)Entrance to fire escape stair case shall be separated and removed from internal staircase.
