Page 41 - ICC IEBC 2018

REPAIRS

[BS] 405.2.3.3 Extent of repair for noncompliant dence of over fusing or tampering per applicable require-
buildings. If the evaluation does not establish that the ments of Section 240.51(B) of NFPA 70.
building in its predamage condition complies with the 406.1.3 Nongrounding-type receptacles. For replace-
provisions of Section 405.2.3.1, then the building shall ment of nongrounding-type receptacles with grounding-
be retrofitted to comply with the provisions of this sec- type receptacles and for branch circuits that do not have an
tion. The wind loads for the repair and retrofit shall be equipment grounding conductor in the branch circuitry,
those required by the building code in effect at the time the grounding conductor of a grounding-type receptacle
of original construction, unless the damage was caused outlet shall be permitted to be grounded to any accessible
by wind, in which case the wind loads shall be in accor- point on the grounding electrode system or to any accessi-
dance with the International Building Code. The seis- ble point on the grounding electrode conductor in accor-
mic loads for this retrofit design shall be those required dance with Section 250.130(C) of NFPA 70.
by the building code in effect at the time of original
construction, but not less than the reduced seismic 406.1.4 Group I-2 receptacles. Receptacles in patient bed
forces. locations of Group I-2 that are not “hospital grade” shall
be replaced with “hospital grade” receptacles, as required
[BS] 405.2.4 Substantial structural damage to gravity by NFPA 99 and Article 517 of NFPA 70.
load-carrying components. Gravity load-carrying com-
ponents that have sustained substantial structural damage 406.1.5 Grounding of appliances. Frames of electric
shall be rehabilitated to comply with the applicable provi- ranges, wall-mounted ovens, counter-mounted cooking
sions for dead and live loads in the International Building units, clothes dryers and outlet or junction boxes that are
Code. Snow loads shall be considered if the substantial part of the existing branch circuit for these appliances shall
structural damage was caused by or related to snow load be permitted to be grounded to the grounded circuit con-
effects. Undamaged gravity load-carrying components ductor in accordance with Section 250.140 of NFPA 70.
that receive dead, live or snow loads from rehabilitated
components shall also be rehabilitated if required to com-
ply with the design loads of the rehabilitation design. SECTION 407
MECHANICAL
[BS] 405.2.4.1 Lateral force-resisting elements.
Regardless of the level of damage to vertical elements 407.1 General. Existing mechanical systems undergoing
of the lateral force-resisting system, if substantial repair shall not make the building less complying than it was
structural damage to gravity load-carrying components before the damaged occurred.
was caused primarily by wind or seismic effects, then 407.2 Mechanical draft systems for manually fired appli-
the building shall be evaluated in accordance with Sec- ances and fireplaces. A mechanical draft system shall be
tion 405.2.3.1 and, if noncompliant, retrofitted in accor- permitted to be used with manually fired appliances and fire-
dance with Section 405.2.3.3. places where such a system complies with all of the following
Exceptions: requirements:
1. Buildings assigned to Seismic Design Cate- 1. The mechanical draft device shall be listed and
gory A, B, or C whose substantial structural installed in accordance with the manufacturer’s instal-
damage was not caused by earthquake need lation instructions.
not be evaluated or retrofitted for load combi- 2. A device shall be installed that produces visible and
nations that include earthquake effects. audible warning upon failure of the mechanical draft
2. One- and two-family dwellings need not be device or loss of electrical power at any time that the
evaluated or retrofitted for load combinations mechanical draft device is turned on. This device shall
that include earthquake effects. be equipped with a battery backup if it receives power
from the building wiring.
[BS] 405.2.5 Flood hazard areas. In flood hazard areas,
buildings that have sustained substantial damage shall be 3. A smoke detector shall be installed in the room with the
brought into compliance with Section 1612 of the Interna- appliance or fireplace. This device shall be equipped
tional Building Code, or Section R322 of the International with a battery backup if it receives power from the
Residential Code, as applicable. building wiring.

SECTION 406 SECTION 408
ELECTRICAL PLUMBING
406.1 Material. Existing electrical wiring and equipment 408.1 Materials. Plumbing materials and supplies shall not
undergoing repair shall be allowed to be repaired or replaced be used for repairs that are prohibited in the International
with like material. Plumbing Code.
406.1.1 Receptacles. Replacement of electrical recepta- 408.2 Water closet replacement. The maximum water con-
cles shall comply with the applicable requirements of Sec- sumption flow rates and quantities for all replaced water clos-
tion 406.4(D) of NFPA 70. ets shall be 1.6 gallons (6 L) per flushing cycle.
406.1.2 Plug fuses. Plug fuses of the Edison-base type Exception: Blowout-design water closets [3.5 gallons (13
shall be used for replacements only where there is no evi- L) per flushing cycle]. *

22 2018 INTERNATIONAL EXISTING BUILDING CODE ®
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