Section R. 408.10674 - Access to fire escape stairsRule 674.
(1) Access to fire escape stairs shall be by doors or casement windows whose minimum dimensions are 24 inches by 6 feet 6 inches, or by double hung windows 30 by 36 inches clear opening. Double hung windows shall be so counterbalanced and maintained that they can be readily opened.(2) Insert screens, if any, on any type of opening giving access to fire escape stairs shall be of types that may be readily opened or pushed out. Storm sash shall not be used on a window providing access to fire escape stairs.(3) Access to fire escape stairs through windows with sills more than 12 inches above the inside floor level shall be provided with permanent access steps leading to the access window. The outside balcony shall not be more than 18 inches below the sill.Mich. Admin. Code R. 408.10674