Section R. 400.10561 - LaundriesRule 561.
(1) In a newly constructed, remodeled, or converted large or secure facility with a laundry, the laundry shall be in compliance with all of the following requirements:(a) Be located in a room that is constructed of materials which have a 1-hour-fire-resistance rating. The laundry shall be protected by an approved automatic sprinkler system. When a laundry is located in a nonresident-occupied level, a sprinkler system is not required if domestic laundry equipment is used.(b) Have steam lines installed that have at least a 1-inch clearance from combustibles.(c) Have dryers that are constructed of metal. Lint traps shall be cleaned frequently.(d) Have 100% automatic and manual shutoff controls for gas appliances other than domestic laundry equipment, which need only have manual shutoff controls.(e) Have adequate outside air for combustion where combustion-type equipment is used.(2) In a newly constructed, remodeled, or converted facility, laundry chutes shall be in compliance with all of the following requirements:(a) Be enclosed in shafts that are constructed of an assemblage of noncombustible materials which have at least a 1-hour resistance to fire. If the shaft does not extend through the roof of the building, the top shall be covered with noncombustible material that affords at least a 1-hour resistance to fire. There shall be no openings into the shaft other than those necessary for the intended use of the laundry chute. Feed doors shall be located in an enclosed sprinklered room or compartment that is separated from other parts of the building by walls, a floor, and a ceiling which have a fire-resistance rating of not less than 1 hour.
Openings to such rooms or compartments shall be protected by B-labeled fire doors in labeled frames.
(b) Have a sprinkler head installed at the top of the chutes and within the laundry chutes at alternate floor levels in buildings over 2 stories in height.(c) Empty into a separate room, closet, or bin which is constructed of materials that have at least a 1-hour resistance to fire and which is protected by automatic sprinklers.(d) Have any of the following: (i) An open vent at the top where the shaft extends through the roof of the building.(ii) A skylight which is glazed with ordinary glass and which is not less than 10% of the shaft area.(iii) A window of ordinary glass which is not less than 10% of the shaft area.(iv) A window of ordinary glass which is not less than 10% of the shaft area and which is set into the side of the shaft with the sill of the window not less than 2 feet above the roof level and 10 feet from any property line or other exposure it faces.(3) In an existing facility, laundry facilities and laundry chutes that are approved before these rules take effect shall continue to be approved until the facility is converted or the portion of the facility which includes the laundry facility or chute is remodeled.Mich. Admin. Code R. 400.10561