Michigan Administrative Code › Department - Health and Human Services › Childrens Services Agency › Licensing Rules for Child Caring Institutions › Part 5 - FIRE SAFETY FOR SMALL, LARGE, AND SECURE INSTITUTION FACILITIES › Section R. 400.4540 - Stairways, halls, and corridors

Current through Vol. 24-12, July 15, 2024
Rule 540.
(1) In
				  existing and small facilities, all stairways and other vertical openings shall
				  be enclosed with materials equal in fire resistance to the standard partition
				  construction of the building, if such partition construction is at least
				  standard lath and plaster. There shall be at least 1 3/4-inch solid core wood
				  door with self-closing and latching hardware installed so that there is
				  effective fire and smoke separation between floors or each sleeping room on the
				  second floor shall be equipped with at least 1 13/4-inch solid core wood door
				  with latching hardware.
(2) In all
				  new and converted large and/or secure facilities, stairways and floor- to-floor
				  openings shall be enclosed with materials having at least the fire-resistance
				  rating specified by the national fire protection association standard No. 220,
				  "Standard on Types of Building Construction
",
2015
,
for the type of construction. All other vertical openings
				  through floors shall be fire-stopped with like materials.
(3) Where a facility has 2 or fewer levels,
				  where both levels exit at grade, and where elevations between levels do not
				  exceed 4 feet, the building shall be considered to be 1 story and enclosures
				  shall not be required between levels.
(4) In all new and converted facilities,
				  stairs shall have treads and risers of uniform width and height, with treads
				  not less than 11 inches deep, exclusive of nosing, and risers not more than 7
				  inches in height.
(5) Stairs in
				  new, remodeled, and converted facilities shall change direction by use of an
				  intermediate landing and not by a variance in the width of treads. A sturdy and
				  securely fastened handrail located between 34 and 38 inches, measured
				  vertically, above the nose of the treads shall be provided.
(6) Stairs in existing facilities approved
				  before these rules take effect shall continue to be approved until the portion
				  of the building encompassing the stairs is remodeled.
(7) An outside stairway or fire escape used
				  as part of an approved means of egress shall be protected against fire in the
				  building by blank or closed walls directly under such stairway and for a
				  distance of 6 feet in all directions. Windows may be allowed within this area
				  if they are stationary wire glass windows.
(8) In newly constructed small facilities,
				  halls, corridors, aisles, and stairs used as part of a means of egress shall be
				  not less than 44 inches wide and not less than 36 inches wide in converted
				  small facilities, except as required by
				  R
				  400.4538(10).
(9) In newly constructed and converted large
				  and secure facilities, halls, corridors, and aisles used as part of an exit way
				  shall be not less than 5 feet wide and 90 inches high, and stairs shall be not
				  less than 4 feet wide.