Mich. Admin. Code R. 400.18648 - Doors and doorways
Rule 648.
(1) A
doorway that leads to a fire escape shall be at floor level, except where a
proper approved ramp is provided. A ramp shall not have more than 1 foot of
rise in 12 feet of run.
(2) A door
from a resident bedroom and a door that forms a part of an approved means of
egress shall be not less than 30 inches in width.
(3) A door into a stairway enclosure and a
door that serves other vertical openings shall be of equal fire-resistant
rating as the partition in which they are installed and shall be equipped with
approved self-closing devices that are designed, installed, and maintained to
close the doors automatically. The doors shall be hung so as to allow for
convenient manual opening and closing at all times. The doors shall be
maintained in a closed position and shall have a prominent sign on each side
that states the following: "Keep Door Closed for Fire Safety." Any glass in the
doors shall be 1/4-inch wired glass and shall not be more than 6 square feet in
area.
(4) An egress door from a
resident-occupied room shall be equipped with hardware that will ensure opening
by a single motion, such as turning a knob or by pressure of a latch using
normal strength. A door which is provided or designated as an exit and which
gives egress directly to the outside shall be equipped with approved anti-panic
hardware or a knob of a type that is nonlocking against egress. The use of
hooks and eyes, bolts, bars, and similar devices is expressly prohibited on
doors which are provided for exit purposes or which are designated as
exits.
(5) A doorway that enters
upon a common use corridor or egress passage shall be protected by a
substantially constructed side-hinged, swing-type door that is constructed to
provide a reasonably smoketight enclosure.
(6) An existing transom and any like opening
in a corridor or passageway shall be permanently sealed and made fire-resistant
equal to the fire-resistance rating of the related partition
construction.
Notes
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