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The 2015 International Existing Building Code? (IEBC?) encourages the use and
reuse of existing buildings, while requiring reasonable upgrades and improvements.
These upgrades and improvements, where applicable, are life-safety related and
include the upgrading of fire protection systems, partial or complete enclosing of
vertical openings, replacement of unsafe interior finishing, providing adequate
means of egress and improving accessibility and the structural system. It is
important to note that the necessity of the upgrades and improvements is
determined by the type and extent of the work, not the expense.
Goal
Participants will be able to use this document to identify changes between the 2012 and 2015 IEBC, allowing
them to apply theses code requirements to design, plan submittals and/or inspection.
Objectives
Upon completion, participants will be better able to:
? Identify the most significant differences between the 2012 IEBC and the 2015 IEBC.
? Explain the differences between the current and previous edition.
? Identify changes in organization and code requirements.
? Identify the applicability of design, plan review and inspection requirements.
Content
Chapters are divided for code development purposes as follows:
Chapter 1: Scope and Administration
Chapter 2: Definitions
Chapter 3: Compliance Methods
Chapter 4: Prescriptive Compliance Method
Chapter 6: Repairs
Chapter 7: Alterations¡ªLevel 1
2015 IEBC Update
Chapter 8: Alterations¡ªLevel 2
Chapter 9: Alterations¡ªLevel 3
Chapter 10: Change of Occupancy
Chapter 11: Additions
Chapter 12: Historic Buildings
Chapter 13: Relocated or Moved Buildings
Chapter 14: Performance Compliance Methods
Chapter 15: Construction Safeguards.
Chapter 16: Referenced Standards
* Italicized items are covered in this handout; not all chapters have significant changes covered in this handout.
Page 2
2015 IEBC Update
General Comments
The 2015 IBC is very similar in layout to 2012 IEBC. There has been no major
renumbering.
Chapter 34 of the IBC has been deleted. The IEBC is the main document for repairs,
alterations, additions and change of occupancy.
Chapter 1: Scope and Administration
Code Section
2015
2012
104.11
104.11
Section Title
Seismic evaluation
and design
procedures
Description of Change
Feedback must be provided by code official as to why an alternate
design, method or material was not approved.
Chapter 3: Provisions for All Compliance Methods
Code Section
2015
2012
301.1.4
301.1.4
302
New
Section Title
Description of Change
Seismic evaluation Revised to harmonize with new edition of ASCE 41. ASCE 41 now
and design
incorporates ASCE 31. Tables 301.1.4.1 and 301.1.4.2 were revised to be
procedures
consistent with the terminology and structure of ASCE 41.
General provisions New section to address issues such as application of additional codes,
existing and new material allowances and occupancy classification for all
compliance methods. Language originates from Chapter 4 and 5.
Page 3
2015 IEBC Update
Chapter 4: Prescriptive Compliance Method
Code Section
Section Title
Description of Change
2015
2012
403.4.1/
907.4.3
New
Altered buildings in Evaluation and retrofit required in seismic design category F if work
Seismic Design
exceeds 50% of aggregate building area (level 3 alteration). Reduced
Category F
seismic loads are permitted.
403.5
New
Bracing for
unreinforced
masonry parapets
upon reroofing
Section added into prescriptive method based upon Section 707.3.1 (Level
1 alteration). Essentially requires unreinforced masonry parapets to be
braced where more the 25% of the roof is being replaced. This is
applicable only to Seismic Design categories D, E and F.
403.6
New
Wall anchorage for
unreinforced
masonry walls in
major alterations
Section added into prescriptive method based upon
Section 907.4.5 and requires that unreinforced
masonry walls be anchored where located in
Seismic design category C, D, E and F. Note that
Section 907.4.5 was revised to add seismic design
category C.
403.7
New
Bracing for
unreinforced
masonry parapets
in major alterations
Section added into the
prescriptive method based upon
Section 907.4.6 for level 3
alterations. This requires that
unreinforced masonry parapets
be braced where located in
seismic design categories C, D,
E and F. Note that Section
907.4.6 was revised to add
seismic design category C.
Page 4
2015 IEBC Update
Chapter 4: Prescriptive Compliance Method
Code Section
2015
2012
406.2/
702.4
New
Section Title
Replacement
window opening
control
devices/window
opening control
devices
Description of Change
Requires that when windows are replaced that window opening control
devices be provided to protect children from falls. This has been
addressed in the IBC for new construction but not for the replacement of
existing windows.
Window Opening Control Devices
406.3/
702.5
New
Replacement
window emergency
escape and rescue
openings
Requires that if a window is intended for emergency escape (Group R)
compliance is not required with IBC under certain conditions: Largest
window made that will fit with largest opening. Permitted to be same
operating style.
407.4
407.4
Change of
Occupancy
(structural)
Allows the use of the seismic design levels and techniques in Chapter 3 ¨C
essentially ASCE 41.
Page 5
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