466.6 Protection From Hazards
The following rooms or spaces shall be separated from the remainder of the building by fire barriers having a fire-resistance rating of not less than 1 hour or shall be protected by an approved automatic extinguishing system.
Boiler and furnace rooms.
Exception: Rooms enclosing only air-handling equipment.
- Rooms or spaces used for the storage of combustible supplies in quantities deemed hazardous by the building official.
- Rooms or spaces used for the storage of hazardous materials or flammable or combustible liquids in quantities deemed hazardous by recognized standards.
Janitor closets.
Exception: Doors to janitor closets shall be permitted to have ventilating louvers where the space is protected by automatic sprinklers.
The following rooms or spaces shall be separated from the remainder of the building by fire barriers having a fire-resistance rating of not less than 1 hour and shall be protected by an approved automatic fire-extinguishing system.
- Laundries.
- Maintenance shops, including woodworking and painting areas.
- Rooms or spaces used for processing or use of combustible supplies deemed hazardous by the building official.
- Rooms or spaces used for processing or use of hazardous materials or flammable or combustible liquids in quantities deemed hazardous by recognized standards.
Exception: Food preparation facilities protected in accordance with NFPA 96 shall not be required to have openings protected between food preparation areas and dining areas. Where domestic cooking equipment is used for food warming or limited cooking, protection or segregation of food preparation facilities shall not be required if approved by the building official.