Mich. Admin. Code R. 400.8515

Current through Vol. 24-21, December 1, 2024

Section R. 400.8515 - Construction

Rule 515.

(1) If child occupancy is limited to the first or main floor, then the building may be of wood frame construction.

(2) If child occupancy is on the second floor, then all of the following are required:

(a) The building shall be of protected ordinary construction.

(b) All required stairways and vertical openings shall be enclosed by walls, in conjunction with openings therein, and ceilings at which they terminate that meet the requirements of standard partition construction to provide a protected means of egress to the outside with proper termination to grade.

(c) All door openings contained in subdivision (b) of this subrule shall meet all of the following requirements:

(i) Be protected with 1--inch flush solid core wood doors or 20-minute labeled fire-rated doors.

(ii) Be installed in fully stopped smoke-tight, substantial frames.

(iii) Be equipped with approved self-closing devices and non-locking-against-egress positive latching hardware.

(3) If child occupancy is above the second floor, then both of the following are required:

(a) The building shall be of 1-hour fire-resistive construction.

(b) All required stairways and other vertical openings shall be enclosed by a minimum 1-hour fire-resistive construction to provide a protected means of egress to the outside with proper termination to grade.

(4) If any portion of a basement is used for more than 30 children, then 1 of the following provisions is required:

(a) Two enclosed stairways of 1-hour fire-resistant construction shall discharge directly to the outside with proper termination to grade, and all openings in the stairways shall be protected by a minimum of 45-minute rated fire doors and frame assemblies. "B" labeled fire doors are acceptable.

(b) One approved exit from the occupied room or use area shall discharge directly to the outside with proper termination to grade. Travel distance from any point in this room or area to this exit shall be less than 50 feet.

(c) Two exits comprised of any combination of subdivisions (a) and (b) of this subrule.

(5) If basement occupancy is limited to not more than 30 children, then all of the following apply:

(a) One of the exits required by subrule (4) of this rule shall discharge directly to the outside with proper termination to grade, or through a 1-hour fire-resistive enclosure.

(b) The second exit may terminate at the first floor level with an approved floor separation meeting the requirements of standard partition construction between the basement and the first floor.

(c) For new construction and conversions, the separation shall be located at the first floor with travel distance from the door to an approved exit not to exceed 100 feet.

(6) All vertical openings and stairways that are not required shall be constructed and arranged with effective fire and smoke separation under the requirements of standard partition construction. All door openings shall be as follows:

(a) Protected with 1--inch flush solid core wood doors or 20-minute labeled fire-rated doors.

(b) Installed in fully stopped smoke-tight substantial frames.

(c) Equipped with approved self-closing devices and non-locking-against-egress positive latching hardware.

Mich. Admin. Code R. 400.8515

2013 AACS; 2020 MR 23, Eff. 12/18/2019