Mich. Admin. Code R. 400.4638 - Means of egress
Rule 638.
(1)
Means of egress shall be considered the entire way and method of passage to
free and safe ground outside a facility. All required means of egress shall be
maintained in unobstructed, easily traveled condition at all times.
(2) There shall be not less than 2 means of
egress from the street floor story. At least 1 of the 2 means of egress shall
be through a side-hinged door. The door shall be a minimum of 30 inches wide,
except as provided in
R 400.4639. The second means of
egress may be a sliding glass door.
(3) A second story shall only be used by
ambulatory residents and shall comply with 1 of the following requirements:
(a) Two open stairways separated by not less
than 50% of the longest dimension of the story.
(b) One open interior stairway and 1 exterior
stairway or fire escape separated by not less than 50% of the longest dimension
of the story. An exterior stairway or fire escape does not require protection
from fire in the building. An exterior stairway or fire escape shall be
constructed of not less than 2-inch nominal lumber and be in good
repair.
(c) One interior stairway
and all floors separated by materials which afford at least a 3/4-hour fire
resistance rating. The doors separating floors shall be at least 1 3/4-inch
solid wood core and shall be equipped with positive latching hardware and
approved self-closing devices. Each sleeping room on the second story shall
have a window of not less than 5 square feet with no dimension less than 22
inches to allow for emergency rescue.
(4) A basement used by residents requires 1
means of egress which may be a stairway. The stairway may be an open stairway,
except as required by subrule (3)(c) of this rule.
Notes
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