Mich. Admin. Code R. 408.41864 - Inside storage room
Rule 1864.
(1)
An inside storage room shall be constructed to meet the required fire
resistance rating for its use. The construction shall meet the test
specifications in The National Fire Protection Association Standard NFPA 251
"Standard Methods of Fire Testing of Building Construction and Materials," 1990
edition, which is adopted by reference in
R
408.41802.
(2) Openings from an inside storage room to
another room or building shall be provided with noncombustible liquid-tight
raised sills or ramps at least 4 inches in height or else the floor in the
storage area shall be at least 4 inches below the surrounding floor. Openings
shall be provided with approved self-closing fire doors.
(3) If wood shelving, racks, dunnage, or
floor overlay is used in the room, it shall be not less than 1 inch nominal
thickness.
(4) Where other portions
of the building or other buildings are exposed, windows shall be protected in
accordance with NFPA 80 "Standard for Fire Doors and Windows," 1970 edition,
for Class E or F openings, as adopted in
R
408.41802.
(5) A material that will react with water to
create a fire hazard shall not be stored in the same room with a flammable
liquid.
(6) Quantities of flammable
liquids stored in an inside storage room shall be limited in accordance with
the criteria prescribed in table 3.
(7) Every inside storage room shall be
provided with either a gravity or a mechanical exhausting system and meet all
of the following provisions:
(a) A switch
located outside of the door of the inside storage room shall control the
mechanical exhausting system and any lighting fixtures.
(b) An electric pilot light shall be
installed adjacent to the switch if category 1, 2, or 3 flammable liquids are
dispensed within the room.
(c) The
exhausting system shall commence not more than 12 inches above the floor and be
designed to provide for a complete change of air within the room not less than
6 times per hour when flammable liquids are stored in the room.
(d) Where gravity ventilation is provided,
the fresh air intake, as well as the exhausting outlet from the room, shall be
on the exterior of the building in which the room is located.
(8) An inside storage room shall
have at least 1 aisle which shall be not less than 3 feet in width and which
shall be maintained free of obstructions.
(9) Containers that have more than a
30-gallon capacity shall not be stacked one upon another.
(10) Table 3 reads as follows:
TABLE 3
| INSIDE STORAGE ROOM | |||
| Fixed Fire Protection Provided | Fire Resistance Rating of Room | Maximum Size Of Storage Area | Total Allowable Quantities Gallons/Square Foot/Floor Area |
| Yes | 2 hours | 500 square feet | 10 |
| No | 2 hours | 500 square feet | 4 |
| Yes | 1 hour | 150 square feet | 5 |
| No | 1 hour | 150 square feet | 2 |
| NOTE: Fire protection system shall be sprinkler, water spray, carbon dioxide, or other system approved by a nationally recognized testing laboratory for this purpose. | |||
Notes
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