Mich. Admin. Code R. 408.10641 - Exit access and discharge
Rule 641.
(1)
An exit access must not be through a room subject to locking.
(2) An exit access must be so arranged that
it will not be necessary to travel through any area of high hazard occupancy to
reach the nearest exit.
(3) The
minimum width of an exit access must be at least equal to the required width of
the exit to which it leads, but not less than 34 inches. The headroom clearance
must be not less than 6 feet 8 inches from the floor.
(4) An exit discharge must discharge directly
outside or to a street, walkway, refuge area, public way, or to a yard, court,
or other open space with access to the outside.
(5) Stairs and other exits must be arranged
to make clear the direction of egress to the street. Where an exit stairs
continues beyond the floor of discharge, it must be interrupted at the floor of
discharge by a partition, door, or other effective means.
(6) Exit access by the way of an exterior
balcony, porch, gallery, or roof must be in compliance with all of the
following:
(a) Be kept free from accumulations
of snow and ice.
(b) Be a permanent
direct route without obstructions, such as railings, gates, barriers, or other
objects, that might divide the space into sections or rooms. Furniture or other
movable objects must not block the path of travel.
(c) Have no dead ends in excess of 20
feet.
(d) Comply with this standard
as to requirements for width and arrangement.
(7) The street, walkway, refuge area, public
way, or open space to which an exit discharge leads must be large enough to
accommodate the building occupants likely to use the exit route.
(8) An exit door must be unlocked.
(9) An outdoor exit route is
permitted.
(10) The outdoor exit
route must have all of the following:
(a)
Guardrails to protect unenclosed sides if a fall hazard exists.
(b) Be covered if snow or ice is likely to
accumulate along the route, unless the employer can demonstrate that any snow
or ice accumulation will be removed before it presents a slipping
hazard.
(c) Be reasonably straight
and have smooth, solid, substantially level walkways.
(d) Not have a dead-end that is longer than
20 feet (6.2 m).
(11) An
exit access must be so arranged that employees will not have to travel toward a
high hazard area, unless the path of travel is effectively shielded from the
high hazard area by suitable partitions or other physical barriers.
Notes
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