ADOPTS WITH AMENDMENTS:

International Existing Building Code 2015 (IEBC 2015)

Heads up: There are no amended sections in this chapter.
Level 3 alterations as described in Section 505 shall comply with the requirements of this chapter.

901.2 Compliance

AMENDMENT
This section has been amended at the state or city level.
In addition to the provisions of this chapter, work shall comply with all of the requirements of Chapters 7 and 8. The requirements of Sections 803, 804 and 805 shall apply within all work areas whether or not they include exits and corridors shared by more than one tenant and regardless of the occupant load.

Exception: Buildings in which the reconfiguration of space affecting exits or shared egress access is exclusively the result of compliance with the accessibility requirements of Section 806.2 shall not be required to comply with this chapter.

902.1 High-Rise Buildings

AMENDMENT
This section has been amended at the state or city level.
Any building having occupied floors more than 75 feet (22 860 mm) above the lowest level of fire department vehicle access shall comply with the requirements of Sections 902.1.1 through 902.1.3.
When a floor is served by a recirculating air or exhaust system with a capacity greater than 15,000 cubic feet per minute (701 m3/s), that system shall be equipped with approved smoke and heat detection devices installed in accordance with the International Mechanical Code.
Where there is an elevator or elevators for public use, at least one elevator serving the work area shall comply with this section. Existing elevators with a travel distance of 25 feet (7620 mm) or more above or below the main floor or other level of a building and intended to serve the needs of emergency personnel for fire-fighting or rescue purposes shall be provided with emergency operation in accordance with ASME A17.3. New elevators shall be provided with Phase I emergency recall operation and Phase II emergency in-car operation in accordance with ASME A17.1/CSAB44.1.

902.1.3 Luminous Egress Path Markings

AMENDMENT
This section has been amended at the state or city level.
Luminous egress markings shall be installed as required by Section 1025 of the North Carolina Building Code.
Boiler and furnace equipment rooms adjacent to or within Groups I-1, I-2, I-4, R-1, R-2 and R-4 occupancies shall be enclosed by 1-hour fire-resistance-rated construction.
Exceptions: 
  1. Steam boiler equipment operating at pressures of 15 pounds per square inch gauge (psig) (103.4 KPa) or less is not required to be enclosed.
  2. Hot water boilers operating at pressures of 170 psig (1171 KPa) or less are not required to be enclosed.
  3. Furnace and boiler equipment with 400,000 British thermal units (Btu) (4.22 × 108 J) per hour input rating or less is not required to be enclosed.
  4. Furnace rooms protected with an automatic sprinkler system are not required to be enclosed.

902.3 Group H

AMENDMENT
This section has been amended at the state or city level.
Where the work area includes a Group H occupancy, the building shall comply with all the requirements of the North Carolina Building Code for the Group H occupancy.
Existing stairways that are part of the means of egress shall be enclosed in accordance with Section 803.2.1 from the highest work area floor to, and including, the level of exit discharge and all floors below.

903.2 Fire Partitions Separation in Group R-3

AMENDMENT
This section has been amended at the state or city level.
Fire separation in Group R-3 occupancies shall be in accordance with Section 903.2.1.

903.2.1 Separation Required

AMENDMENT
This section has been amended at the state or city level.
Where the work area is in any attached dwelling unit in Group R-3, any multiple single-family dwelling (townhouse) or any two-family dwellings, walls separating the dwelling units that are not continuous from the foundation to the underside of the roof sheathing shall be constructed to provide a continuous fire separation using construction materials consistent with the existing wall or complying with the requirements for new structures. All work shall be performed on the side of the dwelling unit wall that is part of the work area.

Exceptions:
  1. Where alterations or repairs do not result in the removal of wall or ceiling finishes exposing the structure, walls are not required to be continuous through concealed floor spaces.
  2. If not currently existing, separation is not required in the crawl space of two-family dwellings.
Interior finish in exits serving the work area shall comply with Section 803.4 between the highest floor on which there is a work area to the floor of exit discharge.
An automatic sprinkler system shall be provided in a work area where required by Section 804.2 or this section.

904.1.1 High-Rise Buildings

AMENDMENT
This section has been amended at the state or city level.

904.1.1 Other Required Automatic Sprinkler Systems

AMENDMENT
This section has been amended at the state or city level.
In buildings and areas listed in Table 903.2.11.6 of the North Carolina Building Code, work areas that have exits or corridors shared by more than one tenant or that have exits or corridors serving an occupant load greater than 30 shall be provided with an automatic sprinkler system under the following conditions:
  1. The work area is required to be provided with an automatic sprinkler system in accordance with the North Carolina Building Code applicable to new construction;
  2. The building has sufficient municipal water supply for design of an automatic sprinkler system available to the floor without installation of a new water storage tank; and
  3. The work area is separated from the remainder of the building with fire barriers complying with the North Carolina Building Code.

904.1.2 Rubbish and Linen Chutes

AMENDMENT
This section has been amended at the state or city level.

904.1.3 Upholstered Furniture or Mattresses

AMENDMENT
This section has been amended at the state or city level.

904.2 Fire Alarm and Detection Systems

AMENDMENT
This section has been amended at the state or city level.
Fire alarm and detection shall be provided in accordance with Section 804.4.
Where required by the International Building Code, a manual fire alarm system shall be provided throughout the work area. Alarm notification appliances shall be provided on such floors and shall be automatically activated as required by the International Building Code.
Exceptions:
  1. Alarm-initiating and notification appliances shall not be required to be installed in tenant spaces outside of the work area.
  2. Visual alarm notification appliances are not required, except where an existing alarm system is upgraded or replaced or where a new fire alarm system is installed.
Where required by the International Building Code for new buildings, automatic fire detection systems shall be provided throughout the work area.

904.3 Standpipes

AMENDMENT
This section has been amended at the state or city level.
Where the work area includes exits or corridors shared by more than one tenant and is located more than 30 feet (15 240 mm) above or below the lowest level of fire department access, a standpipe system shall be provided. Standpipes shall have an approved fire department connection with hose connections at each floor level above or below the lowest level of fire department access. Standpipe systems shall be installed in accordance with the North Carolina Building Code. Standpipes systems shall be provided for high-rise buildings as required by N.C.G.S. 143-138(i).

Exception: The interconnection of multiple standpipe risers shall not be required.
The means of egress shall comply with the requirements of Section 805 except as specifically required in Sections 905.2 and 905.3.
Means of egress from the highest work area floor to the floor of exit discharge shall be provided with artificial lighting within the exit enclosure in accordance with the requirements of the International Building Code.
Means of egress from the highest work area floor to the floor of exit discharge shall be provided with exit signs in accordance with the requirements of the International Building Code.

906.1 General

AMENDMENT
This section has been amended at the state or city level.
A building, facility or element that is altered shall comply with this section and Section 806.
Where four or more Group I-1, I-2, R-1, R-2, R-3 or R-4 dwelling or sleeping units are being altered, the requirements of Section 1107 of the International Building Code for Type B units and Chapter 9 of the International Building Code for visible alarms apply only to the quantity of the spaces being altered.
Exception: Group I-1, I-2, R-2, R-3 and R-4 dwelling or sleeping units where the first certificate of occupancy was issued before March 15, 1991 are not required to provide Type B dwelling or sleeping units.
Where buildings are undergoing Level 3 alterations including structural alterations, the provisions of this section shall apply.
New structural elements shall comply with Section 807.2.
Existing structural elements carrying gravity loads shall comply with Section 807.4.

907.4 Existing Structural Elements Resisting Lateral Loads

AMENDMENT
This section has been amended at the state or city level.
Existing structural elements resisting lateral loads shall comply with Section 807.5. Sections 907.4.1 through 907.4.6 shall apply when existing elements of the lateral force-resisting system have been damaged due to a wind or seismic event. Repair work such as termite or rot damage shall comply with Section 606.1.
Exceptions:
  1. Buildings of Group R occupancy used solely for residential purposes that are altered based on the conventional light-frame construction methods of the International Building Code or in compliance with the provisions of the International Residential Code.
  2. Deleted.
An engineering evaluation and analysis that establishes the structural adequacy of the altered structure shall be prepared by a registered design professional and submitted to the code official.
Where more than 30 percent of the total floor and roof areas of the building or structure have been or are proposed to be involved in structural alteration within a 5-year period, the evaluation and analysis shall demonstrate that the lateral load-resisting system of the altered building or structure complies with the International Building Code for wind loading and with reduced International Building Code-level seismic forces in accordance with Section 301.1.4.2. The areas to be counted toward the 30 percent shall be those areas tributary to the vertical load-carrying components, such as joists, beams, columns, walls and other structural components that have been or will be removed, added or altered, as well as areas such as mezzanines, penthouses, roof structures and in-filled courts and shafts.

907.4.3 Seismic Design Category F

AMENDMENT
This section has been amended at the state or city level.

907.4.4 Limited Structural Alteration

AMENDMENT
This section has been amended at the state or city level.
Where the work does not involve a substantial structural alteration, the existing elements of the lateral load-resisting system shall comply with Section 807.5.
For any building assigned to Seismic Design Category D, E or F with a structural system consisting of concrete or reinforced masonry walls with a flexible roof diaphragm and any building assigned to Seismic Design Category C, D, E or F with a structural system consisting of unreinforced masonry walls with any type of roof diaphragm, the alteration work shall include installation of wall anchors at the roof line to resist the reduced International Building Code-level seismic forces in accordance with Section 301.1.4.2, unless an evaluation demonstrates compliance of existing wall anchorage.
Parapets constructed of unreinforced masonry in buildings assigned to Seismic Design Category C, D, E or F shall have bracing installed as needed to resist the reduced International Building Code-level seismic forces in accordance with Section 301.1.4.2, unless an evaluation demonstrates compliance of such items.

908.1 Minimum Requirements

AMENDMENT
This section has been amended at the state or city level.
Level 3 alterations to existing buildings or structures are permitted without requiring the entire building or structure to comply with the energy requirements of the International Energy Conservation Code or International Residential Code. The alterations shall conform to this section and Sections 708 and 811.

908.1.1 Building Envelope

AMENDMENT
This section has been amended at the state or city level.
New building envelope assemblies that are part of the alteration shall comply with Section R402 of the North Carolina Energy Conservation Code for residential buildings and Section C402 of the North Carolina Energy Conservation Code for commercial buildings.

908.1.1.1 Vertical Fenestration

AMENDMENT
This section has been amended at the state or city level.
The addition of vertical fenestration that results in a total building fenestration area less than or equal to that specified in Section C402.4.1 of the North Carolina Energy Conservation Code shall comply with Section C402.4 of the North Carolina Energy Conservation Code. The addition of vertical fenestration that results in a total building fenestration area greater than Section C402.4.1 of the North Carolina Energy Conservation Code shall comply with Section C407 of the North Carolina Energy Conservation Code.

908.1.1.2 Skylight Area

AMENDMENT
This section has been amended at the state or city level.
The addition of skylight area that results in a total building skylight area less than or equal to that specified in Section C402.4.1 of the North Carolina Energy Conservation Code shall comply with Section C402.4 of the North Carolina Energy Conservation Code. The addition of skylight area that results in a total building skylight area greater than Section C402.4.1 of the North Carolina Energy Conservation Code shall comply with Section C407 of the North Carolina Energy Conservation Code. Alterations that result in a total building skylight area exceeding that specified in Section C402.4.1 of the North Carolina Energy Conservation Code shall comply with Section C407 of the North Carolina Energy Conservation Code.
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