Current through Register Vol. 56, No. 18, September 16, 2024
(a)
This section shall apply within the work area for all reconstruction
projects.
(b) Capacity of Means of
Egress: The capacity of the means of egress in each work area shall be
sufficient for the maximum permitted occupant load of the work area and any
adjacent spaces served by that means of egress as calculated on a per floor
basis. Means of egress shall be measured in units of exit width of 22 inches.
1. The maximum permitted occupant load of a
space shall be determined by the capacity of the means of egress serving the
space as calculated in accordance with Table 1. Building owners shall have the
option of establishing a reasonable restriction on the occupant load of the
space based on the existing capacity of the means of egress or of providing
additional egress capacity. (Plan review--Building, Fire. Inspection--Building)
i. Exception: For nightclubs, the occupant
load of the space shall be determined in accordance with the building subcode.
The occupant load for dance floors shall be calculated at seven square feet of
floor area per occupant. (Plan review--Building, Fire. Inspection--Building)
| Table 1 |
| CAPACITY PER UNIT EGRESS
WIDTH |
| Without automatic sprinkler a
system | With automatic sprinkler system Number
of |
| Number of occupants | occupants |
| Group | Stairways | Doors,
Ramps and Corridors | Stairways | Doors,
Ramps and Corridors |
| A | 75 | 100 | 113 | 150 |
| B | 60 | 100 | 90 | 150 |
| E | 75 | 100 | 113 | 150 |
| F | 60 | 100 | 90 | 150 |
| H | - | - | 60 | 100 |
| I-1 | 60 | 100 | 90 | 100 |
| I-2 / | 22 | 30 | 35 | 45 |
| I-4 |
| I-3 | 60 | 100 | 90 | 150 |
| M | 60 | 100 | 90 | 150 |
| R | 75 | 100 | 113 | 150 |
| S | 60 | 100 | 90 | 150 |
Note: The occupant load may be equal to the total number of
occupants for which exit capacity is provided as determined by Table 1 above.
For Group A occupancies, the resulting total occupant load shall not exceed one
occupant per five square feet of net floor area over the entire use.
Interpolation shall be allowed in determining capacity of
egress width.
Unit of egress width = 22 inches
(c) Interior Finishes: Interior
finishes within work areas shall comply with the following:
1. Existing interior finishes of walls and
ceilings shall have a flame spread rating not greater than the class prescribed
by Table 2 below. All existing interior finish materials which do not comply
with the requirements of this section shall be removed or shall be treated with
an approved fire retardant coating in accordance with the manufacturer's
instructions to secure compliance with the requirements of this section.
Exceptions are allowed as follows:
i. The use
of vinyl or paper wall coverings not exceeding 1/28th of an inch in thickness
which is applied directly to a noncombustible or fire retardant treated wood
substrate shall not be regulated by this section.
ii. Interior trim which does not exceed 10
percent of the aggregate wall and ceiling area of any room or space shall not
be regulated by this section.
iii.
When an approved automatic sprinkler system is provided, interior finish of
Class II or Class III materials shall be permitted where Class I or Class II
materials, respectively, are required by this section.
iv. Exposed portions of structural members
complying with the requirements for heavy timber construction in accordance
with the Uniform Construction Code shall not be regulated by this section.
(Plan review--Building, Fire. Inspection--Building)
| Table 2 |
| Existing Interior Finish
Requirements |
| Group | Exit
Enclosures | Exit Access
Enclosures | Rooms or Spaces |
| A, E, I, R-1 | I | II | III |
| All Other Groups | I | II | No
Minimum |
| The classification of interior finishes
referred to herein corresponds to flame spread ratings determined by ASTM E84
as follows: Class I flame spread, 0-25; Class II flame spread, 26-75; Class III
flame spread, 76-200. In all cases, the smoke developed rating determined by
ASTM E84 shall not exceed 450. |
| See Group A-3 for amusement buildings. |
(d) Commercial cooking operations: An
automatic fire extinguishing system shall be required for newly installed
commercial cooking equipment producing grease-laden vapors, except within
individual dwelling units in multiple-family dwellings in Group R-2. No
automatic fire extinguishing system shall be required for completely enclosed
ovens, steam tables or similar equipment.
1.
Exception: Bed and breakfast homestay facilities, which are designed to
accommodate five or fewer guests, shall not be required to comply with this
provision. (Fire)
(e)
The following requirements shall apply to all casino hotels:
1. All casino hotel standpipe connections
throughout the building shall be identified by a constantly lit four-inch round
blue light connected to an emergency electrical system located no less than 24
inches and not more than 48 inches above the hose connection. Standpipe
connections located on columns shall be marked on all four sides of the column
as described above.
i. This requirement shall
not apply to standpipe hose connections in buildings or portions thereof of
Group R-1 that are located in or within 10 feet of an approved exit stairway
enclosure.
ii. This requirement
shall not apply to standpipe hose connections located in open parking
structures.
2. All
illuminated signs, amplification systems, turn tables, or sound-producing
equipment located on or open and adjacent to the casino floor(s) shall be
interlocked with the fire alarm system so that activation of the fire alarm
system results in disconnection of electrical power to the device(s).
i. This requirement does not apply to exit
signs or emergency communications systems.
ii. This requirement shall not apply to slot
machines or similar gaming equipment.
3. On casino gaming floors and adjacent
spaces open to the casino gaming floor, all house lighting shall return to
normal lighting levels or all emergency lights shall be activated upon
activation of the fire alarm system. For the purpose of applying this
requirement, normal lighting level shall mean an illumination level of not less
than one foot-candle (11 lux) at the floor level. (Plan Review--Electrical,
Fire. Inspection--Fire)
