Section 27-400
§ 27-400 Application. This section shall apply to the construction,
alteration, and use of buildings or spaces for high hazard occupancies
classified in occupancy group A under the provisions of subchapter three
of this chapter.
Section 27-401
§ 27-401 Explosion hazard and unlisted occupancies. Buildings or
spaces of high hazard occupancies that involve explosion hazards or that
are not specifically provided for in this code, shall be constructed to
provide any necessary additional protection adequate for the hazard
involved subject to approval by the commissioner.
Section 27-402
§ 27-402 Other requirements. The occupancy and use of high hazard
buildings and spaces shall also be subject to the applicable
requirements of chapter four of this title.
Section 27-403
§ 27-403 Location. High hazard occupancies shall not be located
within, or attached to, a building occupied for any other use, unless
separated from such other use by noncombustible construction having not
less than a four hour fire resistance rating.
Section 27-404
§ 27-404 Sprinkler requirements. Sprinkler protection meeting the
construction requirements of subchapter seventeen of this chapter shall
be installed in all high hazard occupancies. Where the nature of the
fire hazard is such that water is not effective as an extinguishing
agent, the extinguishing agent to be used, shall be subject to the
approval of the fire commissioner.
Section 27-405
§ 27-405 Ventilation of storage occupancies. Rooms or spaces used for
the storage of flammable paints, solvents, anesthetic agents, fuel or
other oils having a flashpoint under two hundred degrees Fahrenheit (Tag
closed cup) or other inflammable vaporous materials shall be vented to
the outdoors by gravity or mechanical means, with independent supply and
exhaust openings or ducts. If ventilation is provided by gravity means,
the total net free openable area of supply and exhaust openings shall be
equal to at least one percent of the floor area of the room, equally
divided between supply and exhaust. If ventilation is provided by
mechanical means, the system shall be designed to provide at least two
air changes per hour. Where there are explosion hazards, see section
27-401 of this article. The construction of all ventilating systems
shall be in accordance with the requirements of subchapter thirteen of
this chapter.
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