Page 80 - ICC IEBC 2018

CHAPTER 13
PERFORMANCE COMPLIANCE METHODS

User note:
About this chapter: Chapter 13 allows for existing buildings to be evaluated so as to show that alterations, while not meeting new construc-
tion requirements, will improve the current existing situation. Provisions are based on a numerical scoring system involving 19 various safety
parameters and the degree of code compliance for each issue.

SECTION 1301 Code or Section R302 of the International Residential
GENERAL Code for the separate occupancies, or with approved com-
1301.1 Scope. The provisions of this chapter shall apply to pliance alternatives, the provisions of this section which
the alteration, addition and change of occupancy of existing apply to each occupancy shall apply to the entire building.
structures, including historic structures, as referenced in Sec- Where there are conflicting provisions, those requirements
tion 301.3.3. The provisions of this chapter are intended to which secure the greater public safety shall apply to the
maintain or increase the current degree of public safety, entire building or structure.
health and general welfare in existing buildings while permit- 1301.2.3 Additions. Additions to existing buildings shall
ting, alteration, addition and change of occupancy without comply with the requirements of the International Build-
requiring full compliance with Chapters 6 through 12, except ing Code or the International Residential Code for new
where compliance with other provisions of this code is spe- construction. The combined height and area of the existing
cifically required in this chapter. building and the new addition shall not exceed the height
1301.1.1 Compliance with other methods. Alterations, and area allowed by Chapter 5 of the International Build-
additions and changes of occupancy to existing structures ing Code. Where a fire wall that complies with Section
shall comply with the provisions of this chapter or with 706 of the International Building Code is provided
one of the methods provided in Section 301.3. between the addition and the existing building, the addi-
tion shall be considered a separate building.
1301.2 Applicability. Existing buildings in which there is
work involving additions, alterations or changes of occu- 1301.2.3.1 Additions to Group E facilities. For addi-
pancy shall be made to conform to the requirements of this tions to Group E occupancies, storm shelters shall be
chapter or the provisions of Chapters 6 through 10. The pro- provided in accordance with Section 1106.1.
visions of Sections 1301.2.1 through 1301.2.5 shall apply to 1301.2.4 Alterations. An existing building or portion
existing occupancies that will continue to be, or are proposed thereof shall not be altered in such a manner that results in
to be, in Groups A, B, E, F, I-2, M, R and S. These provisions the building being less safe or sanitary than such building
shall not apply to buildings with occupancies in Group H or I- is currently.
1, I-3 or I-4.
Exception: Where the current level of safety or sanita-
1301.2.1 Change in occupancy. Where an existing build- tion is proposed to be reduced, the portion altered shall
ing is changed to a new occupancy classification and this conform to the requirements of the International Build-
section is applicable, the provisions of this section for the ing Code.
new occupancy shall be used to determine compliance
with this code. 1301.2.5 Escalators. Where escalators are provided in
below-grade transportation stations, existing and new
1301.2.2 Partial change in occupancy. Where a portion escalators shall be permitted to have a clear width of less
of the building is changed to a new occupancy classifica- than 32 inches (815 mm).
tion and that portion is separated from the remainder of the
building with fire barrier or horizontal assemblies having a 1301.3 Acceptance. For repairs, alterations, additions, and
fire-resistance rating as required by Table 508.4 of the changes of occupancy to existing buildings that are evaluated
International Building Code or Section R302 of the Inter- in accordance with this section, compliance with this section
national Residential Code for the separate occupancies, or shall be accepted by the code official.
with approved compliance alternatives, the portion 1301.3.1 Hazards. Where the code official determines
changed shall be made to conform to the provisions of this that an unsafe condition exists as provided for in Section
section. 115, such unsafe condition shall be abated in accordance
with Section 115.
Where a portion of the building is changed to a new
occupancy classification and that portion is not separated 1301.3.2 Compliance with other codes. Buildings that
from the remainder of the building with fire barriers or are evaluated in accordance with this section shall comply
horizontal assemblies having a fire-resistance rating as with the International Fire Code and International Prop-
required by Table 508.4 of the International Building erty Maintenance Code.

2018 INTERNATIONAL EXISTING BUILDING CODE ® 61
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