Section R. 400.11219 - Combustible storage; other hazardous areasRule 219.
(1) New construction, additions, conversions, or remodeling, rooms that are used for the storage of combustible materials, or hazardous materials, and are larger than 100 square feet in area, shall have walls and ceilings that are constructed of 1-hour fire resistive construction. Interior doorways to such storage rooms shall be protected with B-labeled fire doors set in labeled frame assemblies complete with approved self-closing devices and positive self-latching hardware. Where such rooms are 100 square feet or smaller, they shall have walls and ceilings that are constructed of at least 5/8-inch drywall and any interior door openings to such rooms shall be protected with a minimum of a 1 3/4-inch solid wood core door or equivalent that has a self-closing device and positive self-latching hardware.(2) In existing buildings approved for camper use, storage rooms that were approved before these rules take effect shall continue to be approved with regard to enclosure until the portion of the facility containing the storage area is remodeled or the facility is converted. At a minimum, these storage rooms shall have approved noncombustible walls and ceilings and any door openings shall be protected with minimum of 1 --inch, solid core wood doors equipped with approved self-closing devices and positive self-latching hardware. This shall not preclude requirements relative to maintaining doors and other safety features in proper working order.(3) Combustible storage shall not be allowed in a heating plant room.(4) In new construction, additions, conversions or remodeling, combustible storage is allowed beneath a stairway. If the storage area is enclosed in 1-hour fire resistive construction including a "B" labeled fire door/frame assembly with an approved self-closing device and positive latching hardware.(5) In new construction, additions, conversions, or remodeling, other hazardous areas in camper-occupied buildings, including areas housing commercial-style kitchens, commercial-style laundries, motor vehicle garages, incinerators, or other similar hazards, shall be enclosed with 1-hour fire resistive construction. Any interior door openings shall be protected with B-labeled fire doors, set in labeled frame assemblies and equipped with approved self-closing devices and positive latching hardware. Where commercial cooking equipment is properly protected by an approved automatic kitchen hood suppression system, the kitchen shall be exempt from the enclosure requirements of this rule.Mich. Admin. Code R. 400.11219
1984 AACS; 1994 AACS; 2009 AACS