2015 International Building Code Update
Colorado Code Consulting, LLC
2015 IBC Update/Changes
2015 INTERNATIONAL
BUILDING CODE
UPDATE/CHANGES
INSTRUCTOR
STEVE THOMAS, CBO
• President, Colorado Code
Consulting, LLC
• Over 35 years experience in
code administration and
enforcement
• ICC Means of Egress Code
Committee
• Author
• Building Code Basics,
Commercial (2009, 2012)
• Building Code Essentials
(2015)
Colorado Code Consulting, LLC
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AGENDA
2
RECOMMENDED READING
• Significant non-structural
changes in the International
Building Code
• Excludes minor editorial
changes
• Overview of significant
changes
• Effective use of the code
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2015 IBC Update/Changes
101.2
SCOPE
MARKINGS
• Solid Vertical Lines in Margin
• Exception:
• Technical Change
• Detached one- and two-family
dwellings and multiple singlefamily dwellings (townhouses)
not more than three stories
above grade plane in height
with a separate means of
egress, and their accessory
structures not more than three
stories above grade plane in
height, shall comply with the
International Residential
Code.
• Arrow
• Entire section, paragraph exception of table has been
deleted.
• Italicized Terms
• Defined term in the code.
• * Paragraph or Section has been moved
• ** Paragraph or Section was moved to this location
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101.3
INTENT
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101.4.7
EXISTING BUILDINGS
• The purpose of this code is to
establish the minimum requirements
to provide a reasonable level of
safety, public health and general
welfare through structural strength,
means of egress facilities, stability,
sanitation, adequate light and
ventilation, energy conservation,
and safety to life and property from
fire and other hazards attributed to
the built environment and to provide
a reasonable level of safety to fire
fighters and emergency responders
during emergency operations.
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• The provisions of the
International Existing
Building Code shall apply to
matters governing the repair,
alteration, change of
occupancy, addition to and
relocation of existing
buildings.
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COMPLIANCE METHODS
IEBC 301.1
WORK AREA
IEBC 501.2
• As selected by the
applicant
• The work area, as defined in
Chapter 2, shall be identified
on the construction
documents.
• Prescriptive
• Chapter 4 & IFC
• Work Area
• Chapters 5 - 13
• Performance
• Chapter 14
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• Seismic Evaluation
required regardless of
option selected
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• WORK AREA.
• That portion or portions of a
building consisting of all
reconfigured spaces as
indicated on the construction
documents. Work area
excludes other portions of
the building where incidental
work entailed by the
intended work must be
performed and portions of
the building where work not
initially intended by the
owner is specifically required
by this code.
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ALTERATIONS – LEVEL 1
IEBC CHAPTER 7
ALT. LEVEL 1 CONFORMANCE
IEBC 701.2
• Level 1 alterations
include removal,
replacement or
covering of existing
materials, elements,
equipment, or
fixtures using new
materials, elements,
equipment, or
fixtures that serve
same purpose
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• An existing building or
portion thereof shall not be
altered such that the building
becomes less safe than its
existing condition.
• Exception: Where the
current level of safety or
sanitation is proposed to be
reduced, the portion altered
shall conform to the
requirements of the IBC.
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ALTERATIONS – LEVEL 2
IEBC 801
ALTERATIONS – LEVEL 2
IEBC 801
• Level 2 alterations
include
reconfiguration of
space, addition or
elimination of any
door or window,
reconfiguration or
extension of any
system, or
installation of any
additional
equipment
• In addition to
requirements of
Chapter 7, all work to
comply with Level 1
provisions
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• All new construction
elements, components,
systems, and spaces to
comply with IBC
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ALTERATIONS – LEVEL 3
IEBC CHAPTER 9
COMPLIANCE
IEBC 901.2
• Level 3 alterations
applicable where
work area exceeds
50 percent of
aggregate area of
building
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• 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
(Building Elements), 804 (Fire Protection),
and 805(Means of Egress) 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
705.2 shall not be required to comply
with this chapter.
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CHANGE OF OCCUPANCY
IEBC CHAPTER 10
CHANGE OF OCCUPANCY
IEBC CHAPTER 10
•
• A change in the use of the
building or a portion of a
building.
•
• A change of occupancy
shall include any change of
occupancy classification,
any change from one group
to another group within an
occupancy classification or
any change in use within a
group for a specific
occupancy classification.
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Various levels of change
of occupancy
addressed:
•
•
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Repair or alteration work
where change of
occupancy does not
involve classification
change per IBC
Partial change of
occupancy where portion
of existing building
changed to new
occupancy
Certificate of occupancy
issued where change of
occupancy occurs
resulting in different
classification
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IEBC 1001.2.2
CHANGE OF OCCUPANCY
CLASSIFICATION OR GROUP
1001.2.1
IEBC CHANGE OF USE
• Where the occupancy
classification of a building
changes, the provisions of
Sections 1002 through 1012 shall
apply. This includes a change of
occupancy classification and a
change to another group within
an occupancy classification.
• Any work undertaken in
connection with a change in use
that does not involve a change of
occupancy classification or a
change to another group within an
occupancy classification shall
conform to the applicable
requirements for the work as
classified in Chapter 5 and to the
requirements of Sections 1002
through 1011.
• Where the occupancy
classification or group of a
portion of an existing building is
changed, Section 1012 shall
apply.
• Exception: As modified in Section
1205 for historic buildings.
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ADDITIONS
IEBC 1101
104.8
LIABILITY
• An addition to a building or
structure shall comply with the
International Codes as
adopted for new construction
without requiring the existing
building or structure to comply
with any requirements of those
codes or of these provisions,
except as required by this
chapter.
• Where an addition impacts the
existing building or structure,
that portion shall comply with
IEBC
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• The building official, member of the
board of appeals or employee
charged with the enforcement of this
code, while acting for the
jurisdiction in good faith and without
malice in the discharge of the duties
required by this code or other
pertinent law or ordinance, shall not
thereby be civilly or criminally
rendered liable personally and is
hereby relieved from personal
liability for any damage accruing to
persons or property as a result of
any act or by reason of an act or
omission in the discharge of official
duties.
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104.11
ALTERNATE MATERIALS
106.1
LIVE LOADS POSTED
• In commercial or industrial
buildings, for each floor or
portion thereof designed for
live loads exceeding 50 psf,
such design live loads shall
be conspicuously posted by
the owner or the owner’s
authorized agent in that part
of each story in which they
apply, using durable signs. It
shall be unlawful to remove
or deface such notices.
• Where the alternative
material, design or method
of construction is not
approved, the building
official shall respond in
writing, stating the reasons
why the alternative was not
approved.
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111.1
USE AND OCCUPANCY
HORIZONTAL EXITS
DEFINITION
• A building or structure shall not
be used or occupied, and a
change in the existing use or
occupancy classification of a
building or structure or portion
thereof shall not be made, until
the building official has issued a
certificate of occupancy therefor
as provided herein. Issuance of a
certificate of occupancy shall not
be construed as an approval of a
violation of the provisions of this
code or of other ordinances of the
jurisdiction.
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• An exit component
consisting of fire-resistancerated construction and
opening protectives
intended to
compartmentalize portions
of a building thereby
creating refuge areas that
afford safety from the fire
and smoke from the area of
fire origin.
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TREATED WOOD
• Food processing
establishments and
commercial kitchens not
associated with restaurants,
cafeterias and similar dining
facilities not more than 2,500
square feet in area.
• Wood products that, when
impregnated with chemicals by a
pressure process or other means
during manufacture, exhibit
reduced surface-burning
characteristics and resist
propagation of fire.
• Preservative-treated wood.
• Wood products that, conditioned
with chemicals by a pressure
process or other means, exhibit
reduced susceptibility to damage
by fungi, insects or marine borers.
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304
GROUP B OCCUPANCIES
• Fire-retardant-treated wood.
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• > 2,500 square feet classified
as Group F-1
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304
GROUP B OCCUPANCIES
308.3
INSTITUTIONAL GROUP I-1
• Institutional Group I-1
occupancy shall include
buildings, structures or
portions thereof for more than
16 persons, excluding staff,
who reside on a 24 hour basis
in a supervised environment
and receive custodial care.
Buildings of Group I-1 shall be
classified as one of the
occupancy conditions
specified in Section 308.3.1 or
308.3.2
• Training and skill
development not in a school
or academic program
• (this shall include, but not be
limited to, tutoring centers,
martial arts studios,
gymnastics and similar uses
regardless of the ages
served, and where not
classified as a Group A
occupancy).
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308.3.1
CONDITION 1
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308.3.2
CONDITION 2
• This occupancy condition
shall include buildings in
which all persons receiving
custodial care who, without
any assistance, are capable
of responding to an
emergency situation to
complete building
evacuation.
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• This occupancy condition
shall include buildings in
which there are any persons
receiving custodial care who
require limited verbal or
physical assistance while
responding to an emergency
situation to complete
building evacuation.
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308.4.1
GROUP I-2 OCCUPANCY
CONDITIONS
308.4.1.1
CONDITION 1
• Buildings of Group I-2 shall
be classified as one of the
occupancy conditions
specified in Section 308.4.1.1
or 308.4.1.2.
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• This occupancy condition
shall include facilities that
provide nursing and medical
care but do not provide
emergency care, surgery,
obstetrics or in-patient
stabilization units for
psychiatric or detoxification,
including but not limited to
nursing homes and foster
care facilities.
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308.4.1.2
CONDITION 2
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310.6.1
GROUP R-4 CONDITION 1
• This occupancy condition
shall include facilities that
provide nursing and medical
care and could provide
emergency care, surgery,
obstetrics or in-patient
stabilization units for
psychiatric or detoxification,
including but not limited to
hospitals.
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• This occupancy condition
shall include buildings in
which all persons receiving
custodial care, without any
assistance, are capable of
responding to an emergency
situation to complete
building evacuation.
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310.6.2
CONDITION 2
310.5.2
LODGING HOUSES
• This occupancy condition
shall include buildings in
which there are any persons
receiving custodial care who
require limited verbal or
physical assistance while
responding to an emergency
situation to complete
building evacuation.
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• Owner-occupied lodging
houses with five or fewer
guest rooms shall be
permitted to be constructed
in accordance with the
International Residential
Code.
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• LODGING HOUSE. A onefamily dwelling where one or
more occupants are
primarily permanent in
nature and rent is paid for
guest rooms.
• A room or space used for
storage purposes that is less
than 100 square feet in area
and accessory to another
occupancy shall be classified
as part of that occupancy.
The aggregate area of such
rooms or spaces shall not
exceed the allowable area
limits of Section 508.2.
• GUEST ROOM. A room used
or intended to be used by
one or more guests for living
or sleeping purposes.
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311.1.1
ACCESSORY STORAGE SPACES
NEW DEFINITIONS
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404.9.1
ATRIUM EXIT ACCESS TRAVEL
DISTANCE
404.5
ATRIUM SMOKE CONTROL
• A smoke control system shall
be installed in accordance
with Section 909.
• Where required access to
the exits is not through the
atrium, exit access travel
distance shall comply with
Section 1017.
• Exception: In other than
Group I-2, and Group I-1,
Condition 2, smoke control
is not required for atriums
that connect only two
stories.
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404.9.2 EXIT ACCESS TRAVEL
DISTANCE AT THE LEVEL OF EXIT
DISCHARGE
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404.9.3 EXIT ACCESS TRAVEL
DISTANCE AT OTHER THAN THE
LEVEL OF EXIT DISCHARGE
• Where the path of egress
travel is through an atrium
space, exit access travel
distance at the level of exit
discharge shall be
determined in accordance
with Section 1017.
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• Where the path of egress
travel is not at the level of
exit discharge from the
atrium, that portion of the
total permitted exit access
travel distance that occurs
within the atrium shall be not
greater than 200 feet
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404.10
INTERIOR EXIT STAIRWAYS
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PRIVATE GARAGE
• A maximum of 50 percent of
interior exit stairways are
permitted to egress through
an atrium on the level of exit
discharge in accordance
with Section 1028.
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• A building or portion of a
building in which motor
vehicles used by the tenants
of the building or buildings
on the premises are stored or
kept, without provisions for
repairing or servicing such
vehicles for profit.
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406.3.1 CLASSIFICATION OF
PRIVATE GARAGES AND CARPORTS
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406.3.2
CLEAR HEIGHT
• Private garages and carports shall be classified as Group U occupancies. Each
private garage shall be not greater than 1,000 square feet in area.
• Multiple private garages are permitted in a building where each private
garage is separated from the other private garages by 1-hour fire barriers in
accordance with Section 707, or 1-hour horizontal assemblies in accordance
with Section 711, or both.
• 3,000 SF limit with fire walls deleted
• In private garages and
carports, the clear height in
vehicle and pedestrian
traffic areas shall be not less
than 7 feet.
• Vehicle and pedestrian areas
accommodating vanaccessible parking shall
comply with Section 1106.5.
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407
GROUP I
407.2.5
NURSING HOME HOUSING UNITS
• In Group I-2, Condition 1, occupancies, in
areas where nursing home residents are
housed, shared living spaces, group
meeting or multipurpose therapeutic
spaces shall be permitted to be open to
the corridor, where all of the following
criteria are met:
• Several Changes in language
to coincide with NFPA 101
Health Care requirements
• Care Suites
• Smoke Barriers
• 1. The walls and ceilings of the space are
constructed as required for corridors.
• Essential Electrical Systems
• 2. The spaces are not occupied as
resident sleeping rooms, treatment
rooms, incidental uses in accordance with
Section 509, or hazardous uses.
• 4. The corridors onto which the spaces
open, in the same smoke compartment,
are protected by an automatic fire
detection system installed in accordance
with Section 907, or the smoke
compartment in which the spaces are
located is equipped throughout with
quick-response sprinklers in accordance
with Section 903.3.2.
• 5. The space is arranged so as not to
obstruct access to the required exits.
• 3. The open space is protected by an
automatic fire detection system installed
in accordance with Section 907.
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407.2.6
NURSING HOME COOKING
FACILITIES
•
•
407.2.6
NURSING HOME COOKING
FACILITIES
In Group I-2, Condition 1, occupancies,
rooms or spaces that contain a cooking
facility with domestic cooking appliances
shall be permitted to be open to the corridor
where all of the following criteria are met:
1. The number of care recipients housed in
the smoke compartment is not greater than
30.
•
2. The number of care recipients served by
the cooking facility is not greater than 30.
•
3. Only one cooking facility area is permitted
in a smoke compartment.
•
4. The types of domestic cooking appliances
permitted are limited to ovens, cooktops,
ranges, warmers and microwaves.
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•
5. The corridor is a clearly identified space
delineated
•
by construction or floor pattern, material or color.
•
6. The space containing the domestic cooking facility
shall be arranged so as not to obstruct access to the
required exit.
•
7. A domestic cooking hood installed and
constructed in accordance with Section 505 of the
International Mechanical Code is provided over the
cooktop or range.
•
8. The domestic cooking hood provided over the
cooktop or range shall be equipped with an
automatic fire-extinguishing system of a type
recognized for protection of domestic cooking
equipment. Preengineered automatic extinguishing
systems shall be tested in accordance with UL 300A
and listed and labeled for the intended application.
The system shall be installed in accordance with this
code, its listing and the manufacturer’s instructions.
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407.2.6
NURSING HOME COOKING
FACILITIES
•
9. A manual actuation device for the hood
suppression system shall be installed in accordance
with Sections 904.12.1 and 904.12.2.
•
10. An interlock device shall be provided such that
upon activation of the hood suppression system, the
power or fuel supply to the cooktop or range will be
turned off.
•
11. A shut-off for the fuel and electrical power supply
to the cooking equipment shall be provided in a
location that is accessible only to staff.
•
12. A timer shall be provided that automatically
deactivates the cooking appliances within a period
of not more than 120 minutes.
•
13. A portable fire extinguisher shall be installed in
accordance with Section 906 of the International Fire
Code.
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407.4.3
PROJECTIONS IN NURSING HOME
CORRIDORS
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•
In Group I-2, Condition 1, occupancies, where the
corridor width is a minimum of 96 inches ,
projections shall be permitted for furniture where all
of the following criteria are met:
•
1. The furniture is attached to the floor or to the wall.
•
2. The furniture does not reduce the clear width of
the corridor to less than 72 inches except where
other encroachments are permitted in accordance
with Section 1005.7.
•
3. The furniture is positioned on only one side of the
corridor.
•
4. Each arrangement of furniture is 50 square feet
maximum in area.
•
5. Furniture arrangements are separated by 10 feet
minimum.
•
6. Placement of furniture is considered as part of the
fire and safety plans in accordance with Section
1001.4.
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412.7
AIRCRAFT MANUFACTURING
FACILITIES
407.5
SMOKE BARRIERS
• In buildings used for the manufacturing of aircraft, exit access travel distances
indicated in Section 1017.1 shall be increased in accordance with the
following:
• Smoke barriers shall be provided to
subdivide every story used by persons
receiving care, treatment or sleeping and
to divide other stories with an occupant
load of 50 or more persons, into no fewer
than two smoke compartments. Such
stories shall be divided into smoke
compartments with an area of not more
than 22,500 square feet in Group I-2,
Condition 1, and not more than 40,000
square feet n Group I-2, Condition 2, and
the distance of travel from any point in a
smoke compartment to a smoke barrier
door shall be not greater than 200 feet.
The smoke barrier shall be in accordance
with Section 709.
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1.
The building shall be of Type I or II construction.
2.
Exit access travel distance shall not exceed the distances given in Table 412.7.
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420.4 - SMOKE BARRIERS IN
GROUP I-1, CONDITION 2
423.3
CRITICAL EMERGENCY OPERATIONS
• In areas where the shelter design
wind speed for tornados in
accordance with Figure 304.2(1)
of ICC 500 is 250 MPH, 911 call
stations, emergency operation
centers and fire, rescue,
ambulance and police stations
shall have a storm shelter
constructed in accordance with
ICC 500.
• Required to subdivide every
story used by persons
receiving care, treatment or
sleeping and to provide
other stories with an
occupant load of 50 or more
persons, into no fewer than
two smoke compartments.
• 22,500 SF Max.
• Exception: Buildings meeting the
requirements for shelter design
in ICC 500.
• 200 Ft. Travel Distance
• Refuge Area Requirements
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423.4
GROUP E OCCUPANCIES
• In areas where the shelter design wind
speed for tornados is 250 MPH in
accordance with Figure 304.2(1) of ICC
500, all Group E occupancies with an
aggregate occupant load of 50 or more
shall have a storm shelter constructed in
accordance with ICC 500. The shelter
shall be capable of housing the total
occupant load of the Group E occupancy.
•
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Exceptions:
1.
Group E day care facilities.
2.
Group E occupancies accessory to
places of religious worship.
3.
Buildings meeting the requirements
for shelter design in ICC 500.
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425.1
HYPERBARIC FACILITIES
CHAPTER 5
BUILDING HEIGHT AND AREA
• Hyperbaric facilities shall
meet the requirements
contained in Chapter 20 of
NFPA 99.
• 2012 Table 503 split into
three separate tables
• 504.3 – Height in feet
• 504.4 – Height in stories
• 506.2 – Allowable area
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504.3
HEIGHT IN FEET
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504.4
NUMBER OF STORIES
• The maximum height, in feet, of a building shall not exceed the
limits specified in Table 504.3.
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• The maximum number of stories of a building shall not exceed the
limits specified in Table 504.4.
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505.2.3
OPENNESS
506.1
BUILDING AREA
• A mezzanine shall be open
and unobstructed to the room
in which such mezzanine is
located except for walls not
more than 42 inches in height,
columns and posts.
• The floor area of a building
shall be determined based
on the type of construction,
occupancy classification,
whether there is an
automatic sprinkler system
installed throughout the
building and the amount of
building frontage on public
way or open space.
• Exceptions
• 2. A mezzanine having two or
more exits or access to exits
is not required to be open to
the room in which the
mezzanine is located.
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506.1.3
BASEMENTS
• Basements need not be
included in the total
allowable floor area of a
building provided the total
area of such basements does
not exceed the area
permitted for a one-story
above grade plane building.
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506.2
ALLOWABLE AREA
DETERMINATION
506.2.1
SINGLE-OCCUPANCY, ONE-STORY
BUILDINGS
Equation 5-1
• The allowable area of a building
shall be determined in
accordance with the applicable
provisions of Sections:
• Aa = At + (NS × If)
• where:
• Aa = Allowable area (square feet).
• 506.2.1 – Single occ./one story
• At = Tabular allowable area factor (NS, S1,
or S13R value, as applicable) in
accordance with Table 506.2.
• 506.2.2 – Mixed occ./one story
• 506.2.3 – Single occ./multistory
• NS = Tabular allowable area factor in
accordance with Table 506.2 for
nonsprinklered building (regardless of
whether the building is sprinklered).
• 506.2.4 – Mixed occ./multistory
• 506.3 – Frontage increase
• If = Area factor increase due to frontage
(percent) as calculated in accordance
with Section 506.3.
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506.2.2
MIXED-OCCUPANCY, ONE-STORY
BUILDINGS -
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506.2.3
SINGLE-OCCUPANCY, MULTISTORY
BUILDINGS
• The allowable area of a
mixed-occupancy building
with no more than one story
above grade plane shall be
determined in accordance
with the applicable
provisions of Section 508.1
based on Equation 5-1 for
each applicable occupancy.
• The allowable area of a singleoccupancy building with more
than one story above grade
plane shall be determined in
accordance with Equation 5-2:
• Aa=[At+ (NS× If)] × Sa
• Sa = Actual number of building
stories above grade plane, not
to exceed three. (NFPA 13R –
Maximum 4)
• Nonseparated occupancies
• Separated occupancies
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506.2.4
MIXED-OCCUPANCY,
MULTISTORY BUILDINGS
• Each story of a mixed-occupancy
building with more than one story
above grade plane shall individually
comply with the applicable
requirements of Section 508.1.
• For buildings with more than three
stories above grade plane, the total
building area shall be such that the
aggregate sum of the ratios of the
actual area of each story divided by
the allowable area of such stories,
determined in accordance with
Equation 5-3 based on the
applicable provisions of Section
508.1,
shall not exceed
three.
Type
VA Construction,
sprinklered,
507.1
UNLIMITED AREA BUILDINGS
Group R-2
Group R-2
Group B Group A-2
Group M
Group B
• The area of buildings of the
occupancies and
configurations specified in
Sections 507.1 through
507.12 shall not be limited.
Basements not more than one
story below grade plane
shall be permitted.
Nonseparated Occ.
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507.9 UNLIMITED MIXED
OCCUPANCY BUILDINGS WITH
GROUP H-5
•
The area of a Group B, F, H-5, M or S building no
more than two stories above grade plane shall
not be limited where the building is equipped
throughout with an automatic sprinkler system in
accordance with Section 903.3.1.1, and is
surrounded and adjoined by public ways or
yards not less than 60 feet in width, provided all
of the following criteria are met:
1.
Buildings containing Group H-5 occupancy
shall be of Type I or II construction.
2.
Each area used for Group H-5 occupancy shall
be separated from other occupancies as
required in Sections 415.11 and 508.4.
3.
Each area used for Group H-5 occupancy shall
not exceed the maximum allowable area
permitted for such occupancies in Section
503.1 including modifications of Section 506.
•
Exception: Where the Group H-5 occupancy
exceeds the maximum allowable area, the Group
H-5 shall be subdivided into areas that are
separated by 2-hour fire barriers.
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TABLE 601, FOOTNOTE D
SPRINKLER SUBSTITUTION
510.2 - HORIZONTAL BUILDING
SEPARATION ALLOWANCE
•
A building shall be considered as separate and
distinct buildings for the purpose of
determining area limitations, continuity of fire
walls, limitation of number of stories and type of
construction where all of the following
conditions are met:
• d.
An approved automatic
sprinkler system in accordance with
Section 903.3.1.1 shall be allowed to
be substituted for 1-hour fireresistance-rated construction,
provided such system is not
otherwise required by other
provisions of the code or used for an
allowable area increase in
accordance with Section 506.3 or an
allowable height increase in
accordance with Section 504.2. The
1-hour substitution for the fire
resistance of exterior walls shall not
be permitted.
1. The buildings are separated with a horizontal
assembly having a fire-resistance rating of not less
than 3 hours.
2. The building below the horizontal assembly is not
greater than one story above grade plane.
3. 2. The building below the horizontal assembly is
of Type IA construction.
5. The building below the horizontal assembly shall
be protected throughout by an approved automatic
sprinkler system in accordance with Section
903.3.1.1, and shall be permitted to be any
occupancy allowed by this code except Group H.
(Deleted specific occupancies)
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602.4.2
CROSS-LAMINATED TIMBER IN
EXTERIOR WALLS
603.1
ALLOWABLE MATERIALS IN TYPE I
& II CONSTRUCTION
• Cross-laminated timber
complying with Section 2303.1.4
shall be permitted within exterior
wall assemblies with a 2-hour
rating or less, provided the
exterior surface of the crosslaminated timber is protected by
one the following:
• Combustible materials shall be
permitted in buildings of Type I or
II construction in the following
applications and in accordance
with Sections 603.1.1 through
603.1.3:
• 26. Wall construction of freezers
and coolers of less than 1,000
square feet, in size, lined on both
sides with noncombustible
materials and the building is
protected throughout with an
automatic sprinkler system in
accordance with Section
903.3.1.1.
• 1. Fire-retardant-treated wood
sheathing complying with Section
2303.2 and not less than 15/32
inch thick;
• 2. Gypsum board not less than
1/2 inch thick; or
• 3. A noncombustible material.
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704.4
PROTECTION OF SECONDARY
MEMBERS
704.4.2
HORIZONTAL ASSEMBLIES
• Secondary members that are
required to have protection to
achieve a fire-resistance rating
shall be protected by individual
encasement protection.
• Horizontal assemblies are
permitted to be protected
with a membrane or ceiling
where the membrane or
ceiling provides the required
fire-resistance rating and is
installed in accordance with
Section 711.
• 704.4.1 Light-frame construction.
•
Studs and boundary elements that are
integral elements in load-bearing
walls of light-frame construction shall
be permitted to have required fireresistance ratings provided by the
membrane protection provided for the
load-bearing wall.
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705.2
PROJECTIONS
• Combustible projections extending
to within 5 feet determine the fire
separation distance shall be of not
less than 1-hour fire-resistance-rated
construction, Type IV construction,
fire-retardant-treated wood or as
required by Section 1406.3.
• Exterior egress balconies and
exterior exit stairways and ramps
shall comply with Sections 1021 and
1027, respectively.
• Exception: Type VB construction
shall be allowed for combustible
projections in Group R-3 and U
occupancies with a fire separation
distance greater than or equal to 5
feet
• Projections shall not extend any
closer to the line used to determine
the fire separation distance than
shown in Table 705.2.
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705.2.3
COMBUSTIBLE PROJECTIONS
• Cornices, eave overhangs, exterior
balconies and similar projections
extending beyond the exterior wall
shall conform to the requirements of
this section and Section 1406.
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705.3
BUILDINGS ON THE SAME LOT
•
New exception
•
2.
Where an S-2 parking garage of
Construction Type I or IIA is erected on the
same lot as a Group R-2 building, and there
is no fire separation distance between these
buildings, then the adjoining exterior walls
between the buildings are permitted to have
occupant use openings in accordance with
Section 706.8.
•
However, opening protectives in such
openings shall only be required in the
exterior wall of the S-2 parking garage, not in
the exterior wall openings in the R-2
building, and these opening protectives in
the exterior wall of the S-2 parking garage
shall be not less than 1 ½-hour fire
protection rating.
705.6
STRUCTURAL STABILITY
• The wall Exterior Walls shall extend to
the height required by Section 705.11
and shall have sufficient structural
stability such that it will remain in
place for the duration of time indicated
by the required fire-resistance
rating.Where exterior walls have a
minimum fire separation distance of
not less than 30 feet, interior Interior
structural elements which brace the
exterior wall but which are not located
within the plane of the exterior wall
shall have the minimum fire-resistance
rating required in Table 601 for that
structural element.
• Remainder of Section unchanged
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706.2
STRUCTURAL STABILITY
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709.4
SMOKE BARRIER CONTINUITY
• New language:
• Fire walls shall be designed
and constructed to allow
collapse of the structure on
either side without collapse
of the wall under fire
conditions. Fire walls
designed and constructed in
accordance with NFPA 221
shall be deemed to comply
with this section.
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• Smoke barrier walls used to
separate smoke compartments
shall comply with Section
709.4.1.
• Smoke-barrier walls used to
enclose areas of refuge in
accordance with Section
1009.6.4 or to enclose elevator
lobbies in accordance with
Section 405.4.3, 3007.6.2, or
3008.6.2 shall comply with
Section 709.4.2.
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709.4.1 - SMOKE-BARRIER WALLS
SEPARATING SMOKE COMPARTMENTS
• Smoke-barrier walls used to separate smoke compartments
shall form an effective membrane continuous from outside wall
to outside wall.
709.4.2 SMOKE-BARRIER WALLS ENCLOSING
AREAS OF REFUGE OR ELEVATOR LOBBIES
• Smoke-barrier walls used to enclose
areas of refuge in accordance with
Section 1009.6.4, or to enclose elevator
lobbies in accordance with Section
405.4.3, 3007.6.2, or 3008.6.2, shall form
an effective membrane enclosure that
terminates at a fire barrier wall having a
level of fire protection rating not less than
1 hour, another smoke barrier wall or an
outside wall.
• A smoke and draft control door assembly
as specified in Section 716.5.3.1 shall not
be required at each elevator hoistway
door opening or at each exit doorway
between an area of refuge and the exit
enclosure.
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714.4.2
MEMBRANE PENETRATION EXCEPTION
• 7.
The ceiling membrane of
1- and 2-hour fire-resistancerated horizontal assemblies is
permitted to be interrupted with
the double wood top plate of a
wall assembly that is sheathed
with Type X gypsum wallboard,
provided that all penetrating
items through the double top
plates are protected in
accordance with Section
714.4.1.1 or 714.4.1.2 and the
ceiling membrane is tight to the
top plates.
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717.1.1
DUCTS AND AIR TRANSFER
OPENINGS
• Ducts transitioning
horizontally between shafts
shall not require a shaft
enclosure provided that the
duct penetration into each
associated shaft is protected
with dampers complying
with this section.
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CORRIDOR DAMPER
DEFINITION
717.3.2.4
CORRIDOR DAMPER RATINGS
• A listed device intended for
use where air ducts
penetrate or terminate at
horizontal openings in the
ceilings of fire-resistancerated corridors, where the
corridor ceiling is permitted
to be constructed as
required for the corridor
walls.
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• Corridor dampers shall have
the following minimum
ratings:
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• Duct and air transfer openings that
penetrate corridors shall be
protected with dampers as follows:
2.
Class I or II leakage
rating as specified in
Section 717.3.2.2.
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• Where an occupied roof has
an assembly occupancy with
an occupant load exceeding
100 for Group A-2 and 300 for
other Group A occupancies, all
floors between the occupied
roof and the level of exit
discharge shall be equipped
with an automatic sprinkler
system in accordance with
Section 903.3.1.1 or 903.3.1.2.
1. A corridor damper shall be provided
where corridor ceilings, constructed as
required for the corridor walls as permitted
in Section 708.4, Exception 3, are penetrated.
2. A ceiling radiation damper shall be
provided where the ceiling membrane of a
fire-resistance-rated floor-ceiling or roofceiling assembly, constructed as permitted
in Section 708.4, Exception 2, is penetrated.
3. A listed smoke damper designed to resist
the passage of smoke shall be provided at
each point a duct or air transfer opening
penetrates a corridor enclosure required to
have smoke and draft control doors in
accordance with Section 716.5.3.
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One hour fire-resistance
rating.
903.2.1.6
ASSEMBLY OCCUPANCIES ON
ROOFS
717.5.4.1
CORRIDORS
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1.
• Exception: Open parking
garages of Type I or Type II
construction.
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903.2.1.7
MULTIPLE FIRE AREAS
903.2.8
GROUP R FIRE SPRINKLERS
• An automatic sprinkler
system shall be provided
where multiple fire areas of
Group A-1, A-2, A-3 or A-4
occupancies share exit or
exit access components and
the combined occupant load
of theses fire areas is 300 or
more.
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• An automatic sprinkler
system installed in
accordance with Section
903.3 shall be provided
throughout all buildings with
a Group R fire area.
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903.2.8.1
GROUP R-3 SPRINKLERS
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903.2.8.2
GROUP R-4 CONDITION 1
• An automatic sprinkler
system installed in
accordance with Section
903.3.1.3 shall be permitted
in Group R-3 occupancies.
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• An automatic sprinkler
system installed in
accordance with Section
903.3.1.3 shall be permitted
in Group R-4 Condition 1
occupancies.
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903.2.8.3
GROUP R-4 CONDITION 2
903.2.8.3.1 ATTICS USED FOR LIVING PURPOSES,
STORAGE OR FUEL-FIRED EQUIPMENT
• An automatic sprinkler
system installed in
accordance with Section
903.3.1.2 shall be permitted
in Group R-4 Condition 2
occupancies. Attics shall be
protected in accordance with
Section 903.2.8.3.1 or
903.2.8.3.2.
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• Attics used for living
purposes, storage or fuelfired equipment shall be
protected throughout with an
automatic sprinkler system
installed in accordance with
Section 903.3.1.2.
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903.2.8.3.2 ATTICS NOT USED FOR LIVING PURPOSES,
STORAGE OR FUEL-FIRED EQUIPMENT
• Attics not used for living purposes,
storage or fuel-fired equipment shall be
protected in accordance with one of the
following:
1.
Attics protected throughout by a heat
detector system arranged to activate
the building fire alarm system in
accordance with Section 907.2.10.
2.
Attics constructed of noncombustible
materials.
3.
Attics constructed of fire-retardanttreated wood framing complying with
Section 2303.2.
4.
The automatic sprinkler system shall
be extended to provide protection
throughout the attic space.
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903.3.1.1.2
BATHROOMS (NFPA 13)
• In Group R occupancies, other
than Group R-4 occupancies,
sprinklers shall not be required in
bathrooms that do not exceed 55
square feet in area and are
located within individual dwelling
units or sleeping units, provided
that walls and ceilings, including
the walls and ceilings behind a
shower enclosure or tub, are of
noncombustible or limited
combustible materials with a 15minute thermal barrier rating.
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903.3.1.2.2
OPEN-ENDED CORRIDORS
903.3.8
LIMITED AREA SPRINKLER SYSTEMS
• NFPA 13R Systems
• Limited area sprinkler
systems shall be in
accordance with the
standards listed in Section
903.3.1 except as provided
in Sections 903.3.8.1 through
903.3.8.5.
• Sprinkler protection shall be
provided in open-ended
corridors and associated
exterior stairways and ramps
as specified in Section
1027.6, Exception 3.
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903.3.8.1
NUMBER OF SPRINKLERS
• Only areas classified by
NFPA 13 as Light Hazard or
Ordinary Hazard Group 1
shall be permitted to be
protected by limited area
sprinkler systems.
• Previously 20 heads
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903.3.8.2
OCCUPANCY HAZARD CLASSIFICATION
• Limited area sprinkler
systems shall not exceed six
sprinklers in any single fire
area.
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903.3.8.3
PIPING ARRANGEMENT
903.3.8.4
SUPERVISION
• Where a limited area sprinkler
system is installed in a building
with an automatic wet standpipe
system, sprinklers shall be
supplied by the standpipe system.
• Control valves shall not be
installed between the water
supply and sprinklers unless
the valves are of an
approved indicating type
that are supervised or
secured in the open position.
• Where a limited area sprinkler
system is installed in a building
without an automatic wet
standpipe system, water shall be
permitted to be supplied by the
plumbing system provided that
the plumbing system is capable of
simultaneously supplying
domestic and sprinkler demands.
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903.3.8.5
CALCULATIONS
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904.13 - DOMESTIC COOKING SYSTEMS
IN GROUP I-2 CONDITION 1
• In Group I-2 Condition 1, occupancies
where cooking facilities are installed in
accordance with Section 407.2.6 of this
code, the domestic cooking hood
provided over the cooktop or range shall
be equipped with an automatic fireextinguishing system of a type
recognized for protection of domestic
cooking equipment.
• Hydraulic calculations in
accordance with NFPA 13
shall be provided to
demonstrate that the
available water flow and
pressure are adequate to
supply all sprinklers
installed in any single fire
area with discharge densities
corresponding to the hazard
classification.
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• Preengineered automatic extinguishing
systems shall be tested in accordance
with UL 300A and listed and labeled for
the intended application. The system
shall be installed in accordance with this
code, its listing and the manufacturer’s
instructions.
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904.13.2 PORTABLE FIRE EXTINGUISHERS
FOR DOMESTIC COOKING EQUIPMENT IN
GROUP I-2 CONDITION 1
904.13.1 - MANUAL SYSTEM
OPERATION AND INTERCONNECTION
• Manual actuation and system
interconnection for the hood
suppression system shall be
installed in accordance with
Sections 904.12.1 and
904.12.2, respectively.
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• A portable fire extinguisher
complying with Section 906
shall be installed within a 30foot distance of travel from
domestic cooking
appliances.
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907.2.3
GROUP E FIRE ALARMS
• Smoke alarms shall not be installed in the
following locations unless this would
prevent placement of a smoke alarm in a
location required by Section 907.2.11.1 or
907.2.11.2:
• Emergency voice/alarm
communication systems meeting
the requirements of Section
907.5.2.2 and installed in
accordance with Section 907.6
shall not be required in Group E
occupancies with occupant loads
of 100 or less, provided that
activation of the manual fire alarm
system initiates an approved
occupant notification signal in
accordance with Section 907.5.
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907.2.11.3
INSTALLATION NEAR COOKING APPLIANCES
• Exception 2
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•
1. Ionization smoke alarms shall not be
installed less than 20 feet horizontally
from a permanently installed cooking
appliance.
•
2. Ionization smoke alarms with an
alarm-silencing switch shall not be
installed less than 10 feet horizontally
from a permanently installed cooking
appliance.
•
3. Photoelectric smoke alarms shall not
be installed less than 6 feet
horizontally from a permanently
installed cooking appliance.
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910.2
SMOKE & HEAT VENTS
907.2.11.4
INSTALLATION NEAR BATHROOMS
• Smoke alarms shall be
installed not less than 3 feet
horizontally from the door or
opening of a bathroom that
contains a bathtub or shower
unless this would prevent
placement of a smoke alarm
required by Section
907.2.11.1 or 907.2.11.2.
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•
Smoke and heat vents or a mechanical
smoke removal system shall be installed as
required by Sections 910.2.1 and 910.2.2.
•
Exceptions:
Frozen food warehouses used solely for
storage of Class I and II commodities
where protected by an approved
automatic sprinkler system.
2.
Smoke and heat removal shall not be
required in areas of buildings equipped
with early suppression fast-response
(ESFR) sprinklers.
3.
Smoke and heat removal shall not be
required in areas of buildings equipped
with control mode special application
sprinklers with a response time index of
50 (m · s)1/2 or less that are listed to
control a fire in stored commodities with
12 or fewer sprinklers.
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910.2.1
GROUP F-1 OR S-1
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910.2.2
HIGH-PILED COMBUSTIBLE STORAGE
• Smoke and heat vents installed in
accordance with Section 910.3 or a
mechanical smoke removal system
installed in accordance with Section 910.4
shall be installed in buildings and
portions thereof used as a Group F-1 or S1 occupancy having more than 50,000
square feet of undivided area.
• In occupied portions of a building
equipped throughout with an automatic
sprinkler system in accordance with
Section 903.3.1.1 where the upper surface
of the story is not a roof assembly, a
mechanical smoke removal system in
accordance with Section 910.4 shall be
installed.
•
1.
•
Smoke and heat removal required by Table 3206.2 of
the International Fire Code for buildings and
portions thereof containing high-piled combustible
storage shall be installed in accordance with Section
910.3 in unsprinklered buildings.
•
In buildings and portions thereof containing highpiled combustible storage equipped throughout with
an automatic sprinkler system in accordance with
Section 903.3.1.1, a smoke and heat removal system
shall be installed in accordance with Section 910.3 or
910.4.
•
In occupied portions of a building equipped
throughout with an automatic sprinkler system in
accordance with Section 903.3.1.1, where the upper
surface of the story is not a roof assembly, a
mechanical smoke removal system in accordance
with Section 910.4 shall be installed.
Exception: Group S-1 aircraft repair
hangars.
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910.2.2
HIGH-PILED COMBUSTIBLE STORAGE
910.2.2
HIGH-PILED COMBUSTIBLE STORAGE
• In buildings and portions
thereof containing highpiled combustible storage
equipped throughout with an
automatic sprinkler system
in accordance with Section
903.3.1.1, a smoke and heat
removal system shall be
installed in accordance with
Section 910.3 or 910.4.
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• In occupied portions of a
building equipped
throughout with an automatic
sprinkler system in
accordance with Section
903.3.1.1, where the upper
surface of the story is not a
roof assembly, a mechanical
smoke removal system in
accordance with Section
910.4 shall be installed.
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915.1
CARBON MONOXIDE DETECTION
• Carbon monoxide detection
shall be installed in new
buildings in accordance with
Sections 915.1.1 through
915.6. Carbon monoxide
detection shall be installed
in existing buildings in
accordance with Chapter 11
of the International Fire
Code.
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915.1.1
WHERE REQUIRED
• Carbon monoxide detection
shall be provided in Group I1, I-2, I-4 and R occupancies
and in classrooms in Group E
occupancies in the locations
specified in Section 915.2
where any of the conditions
in Sections 915.1.2 through
915.1.6 exist.
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915.1.3
FORCED-AIR FURNACES
915.1.2 FUEL-BURNING APPLIANCES
AND FUEL-BURNING FIREPLACES
• Carbon monoxide detection shall be
provided in dwelling units, sleeping
units and classrooms served by a
fuel-burning, forced-air furnace.
• Carbon monoxide detection
shall be provided in dwelling
units, sleeping units and
classrooms that contain a
fuel-burning appliance or a
fuel-burning fireplace.
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• Exception: Carbon monoxide
detection shall not be required in
dwelling units, sleeping units and
classrooms if carbon monoxide
detection is provided in the first
room or area served by each main
duct leaving the furnace, and the
carbon monoxide alarm signals are
automatically transmitted to an
approved location.
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915.1.4 - FUEL-BURNING APPLIANCES OUTSIDE OF
DWELLING UNITS, SLEEPING UNITS AND CLASSROOMS
• Carbon monoxide detection shall be
provided in dwelling units, sleeping
units and classrooms located in
buildings that contain fuel-burning
appliances or fuel-burning
fireplaces.
915.1.4 FUEL-BURNING APPLIANCES OUTSIDE OF
DWELLING UNITS, SLEEPING UNITS AND CLASSROOMS
• 2.1. In an approved location
between the fuel-burning
appliance or fuel-burning fire
place and the dwelling unit,
sleeping unit or classroom.
• 1. Carbon monoxide detection shall
not be required in dwelling units,
sleeping units and classrooms
where there are no communicating
openings between the fuel-burning
appliance or fuel-burning fireplace
and the dwelling unit, sleeping unit
or classroom.
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• 2.
Carbon monoxide
detection shall not be required in
dwelling units, sleeping units and
classrooms where carbon
monoxide detection is provided in
one of the following locations:
• Exceptions:
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• 2.2. On the ceiling of the room
containing the fuel-burning
appliance or fuel-burning
fireplace.
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915.1.5
PRIVATE GARAGES
915.1.5
PRIVATE GARAGES
• Carbon monoxide detection shall be
provided in dwelling units, sleeping
units and classrooms in buildings
with attached private garages.
• 3.
Carbon monoxide
detection shall not be required
where the private garage
connects to the building through
an open-ended corridor.
• Exceptions:
• 1. Carbon monoxide detection shall
not be required where there are no
communicating openings between
the private garage and the dwelling
unit, sleeping unit or classroom.
• 4.
Where carbon monoxide
detection is provided in an
approved location between
openings to a private garage and
dwelling units, sleeping units or
classrooms, carbon monoxide
detection shall not be required in
the dwelling units, sleeping units
or classrooms.
• 2. Carbon monoxide detection shall
not be required in dwelling units,
sleeping units and classrooms
located more than one story above
or below a private garage.
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915.1.6
EXEMPT GARAGES
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130
915.2.1
DWELLING UNITS
• Carbon monoxide detection
shall be installed in dwelling
units outside of each separate
sleeping area in the
immediate vicinity of the
bedrooms.
• For determining compliance
with Section 915.1.5, an open
parking garage complying
with Section 406.5 or an
enclosed parking garage
complying with Section 406.6
shall not be considered a
private garage.
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• Where a fuel-burning
appliance is located within a
bedroom or its attached
bathroom, carbon monoxide
detection shall be installed
within the bedroom.
131
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2015 IBC Update/Changes
915.2.2
SLEEPING UNITS
915.2.3
GROUP E OCCUPANCIES
• Carbon monoxide detection
shall be installed in sleeping
units.
• Carbon monoxide detection shall
be installed in classrooms in
Group E occupancies.
• Carbon monoxide alarm signals
shall be automatically transmitted
to an on-site location that is staffed
by school personnel.
• Exception: Carbon monoxide
detection shall be allowed to
be installed outside of each
separate sleeping area in the
immediate vicinity of the
sleeping unit where the
sleeping unit or its attached
bathroom does not contain a
fuel-burning appliance and is
not served by a forced air
furnace.
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•
133
915.4.1
POWER SOURCE
134
• Combination carbon
monoxide/smoke alarms
shall be an acceptable
alternative to carbon
monoxide alarms.
• Combination carbon
monoxide/smoke alarms
shall be listed in accordance
with UL 2034 and UL 217.
• Exception: Where installed in
buildings without commercial
power, battery-powered carbon
monoxide alarms shall be an
acceptable alternative.
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915.4.3
COMBINATION ALARMS
• Carbon monoxide alarms shall
receive their primary power from
the building wiring where such
wiring is served from a
commercial source, and when
primary power is interrupted,
shall receive power from a battery.
Wiring shall be permanent and
without a disconnecting switch
other than that required for
overcurrent protection.
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Exception: Carbon monoxide alarm
signals shall not be required to be
automatically transmitted to an on-site
location that is staffed by school
personnel in Group E occupancies
with an occupant load of 30 or less.
135
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136
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2015 IBC Update/Changes
915.5
CARBON MONOXIDE DETECTION
SYSTEMS
915.6
MAINTENANCE
• Carbon monoxide detection
systems shall be an
acceptable alternative to
carbon monoxide alarms and
shall comply with Sections
915.5.1 through 915.5.3.
• Carbon monoxide alarms
and carbon monoxide
detection systems shall be
maintained in accordance
with the International Fire
Code.
• General
• Locations
• Combination detectors
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137
• Where occupants egress from
one or more rooms, areas or
spaces through others, the
design occupant load shall be
the combined occupant load
of interconnected accessory
or intervening spaces. Design
of egress path capacity shall
be based on the cumulative
portion of occupant loads of all
rooms, areas or spaces to that
point along the path of egress
travel.
• Entire chapter has been
reformatted.
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138
1004.1.1.1
INTERVENING SPACES OR
ACCESSORY AREAS
CHAPTER 10
MEANS OF EGRESS
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2015 IBC Update/Changes
1004.1.1.2
ADJACENT LEVELS FOR
MEZZANINES
1004.1.1.3
ADJACENT STORIES
• That portion of the occupant
load of a mezzanine with
required egress through a
room, area or space on an
adjacent level shall be
added to the occupant load
of that room, area or space.
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• Other than for the egress
components designed for
convergence in accordance
with Section 1005.6, the
occupant load from separate
stories shall not be added.
141
TABLE 1004.1.2
OCCUPANT LOAD
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1006.1 - NUMBER OF EXITS AND
EXIT ACCESS DOORWAYS
• All levels of mercantile uses
changed to 60 square feet
per occupant.
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• The number of exits or exit
access doorways required
within the means of egress
system shall comply with the
provisions of Section 1006.2
for spaces, including
mezzanines, and Section
1006.3 for stories.
143
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2015 IBC Update/Changes
1006.2.1 - EGRESS BASED ON
OCCUPANT LOAD AND COMMON PATH
OF EGRESS TRAVEL DISTANCE
•
Two exits or exit access doorways from any
space shall be provided where the design
occupant load or the common path of egress
travel distance exceeds the values listed in
Table 1006.2.1.
•
Exceptions:
•
1. In Group R-2 and R-3 occupancies, one
means of egress is permitted within and from
individual dwelling units with a maximum
occupant load of 20 where the dwelling unit is
equipped throughout with an automatic
sprinkler system in accordance with Section
903.3.1.1 or 903.3.1.2 and the common path of
egress travel does not exceed 125 feet.
•
• The means of egress system
serving any story or occupied
roof shall be provided with the
number of exits or access to
exits based on the aggregate
occupant load served in
accordance with this section.
• The path of egress travel to an
exit shall not pass through
more than one adjacent story.
2. Care suites in Group I-2 occupancies
complying with Section 407.4.
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• Remainder of section deleted
in errata.
145
• The separation distance required
in Section 1007.1.1 shall be
measured in accordance with the
following:
146
• Where access to three or more
exits is required, not less than
two exit or exit access
doorways shall be arranged in
accordance with the
provisions of Section 1007.1.1.
• 1. The separation distance to exit
or exit access doorways shall be
measured to any point along the
width of the doorway.
• Additional required exit or
exit access doorways shall be
arranged a reasonable
distance apart so that if one
becomes blocked, the others
will be available.
• 2. The separation distance to exit
access stairways shall be
measured to the closest riser.
• 3. The separation distance to exit
access ramps shall be measured
to the start of the ramp run.
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1007.1.2
THREE OR MORE EXITS OR EXIT
ACCESS DOORWAYS
1007.1.1.1
DIAGONAL MEASUREMENT POINT
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1006.3
EGRESS FROM STORIES OR OCCUPIED ROOFS
147
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2015 IBC Update/Changes
1007.1.3
REMOTENESS OF EXIT ACCESS
STAIRWAYS OR RAMPS
1009.8
TWO-WAY COMMUNICATION
• Where two exit access
stairways or ramps provide
the required means of egress
to exits at another story, the
required separation distance
shall be maintained for all
portions of such exit access
stairways or ramps.
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• A two-way communication
system complying with
Sections 1009.8.1 and
1009.8.2 shall be provided at
the landing serving each
elevator or bank of elevators
on each accessible floor that
is one or more stories above
or below the level of exit
discharge.
149
1009.8
TWO-WAY COMMUNICATION
• Locks and latches shall be
permitted to prevent operation of
doors where any of the following
exist:
• 3.
Two-way communication
systems are not required at the
landings serving only service
elevators that are not designated as
part of the accessible means of egress
or serve as part of the required
accessible route into a facility.
• 2.
In buildings in occupancy
Group A having an occupant load
of 300 or less, Groups B, F, M and
S, and in places of religious
worship, the main exterior door or
doors are permitted to be
equipped with key-operated
locking devices from the egress
side provided:
• 4.
Two-way communication
systems are not required at the
landings serving only freight
elevators.
• 5.
Two-way communication
systems are not required at the landing
serving a private residence elevator.
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1010.1.9.3
LOCKS AND LATCHES
• New Exceptions
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151
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• 2.1. Not changed
• 2.2. A readily visible durable sign
is posted on the egress side on or
adjacent to the door stating: THIS
DOOR TO REMAIN UNLOCKED
WHEN THIS BUILDING SPACE IS
OCCUPIED. The sign shall be in
letters 1 inch (25 mm) high on a
contrasting background.
• 2.3. Not Changed
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2015 IBC Update/Changes
1011.16
LADDERS
• Permanent ladders shall not serve
as a part of the means of egress from
occupied spaces within a building.
Permanent ladders shall be
permitted to provide access to the
following areas:
1.
2.
Spaces frequented only by
personnel for maintenance,
repair or monitoring of
equipment.
Nonoccupiable spaces accessed
only by catwalks, crawl spaces,
freight elevators or very narrow
passageways.
3.
1014.8
HANDRAIL PROJECTIONS
Raised areas used primarily for
purposes of security, life safety or
fire safety including, but not limited
to, observation galleries, prison
guard towers, fire towers or
lifeguard stands.
4.
Elevated levels in Group U not
open to the general public.
5.
Nonoccupied roofs that are not
required to have stairway access in
accordance with Section 1011.12.1.
6.
Ladders shall be constructed in
accordance with Section 306.5 of
the International Mechanical Code.
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• New language
• Where a pair of intermediate
handrails are provided within the
stairway width without a walking
surface between the pair of
intermediate handrails and the
distance between the pair of
intermediate handrails is greater
than 6 inches, the available egress
width shall be reduced by the
distance between the closest edges
of each such intermediate pair of
handrails that is greater than 6
inches.
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• Egress through intervening spaces
shall comply with this section.
• The maximum exit access travel
distance shall be 400 feet in Group
F-1 or S-1 occupancies where all of
the following conditions are met:
• 1. Exit access through an enclosed
elevator lobby is permitted.
• Access to not less than one of the
required exits shall be provided
without travel through the enclosed
elevator lobbies required by
Section 3006.
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154
1017.2.2
GROUP F-1 AND S-1 INCREASE
1016.2
EGRESS THROUGH INTERVENING SPACES
• Where the path of exit access travel
passes through an enclosed
elevator lobby, the level of
protection required for the enclosed
elevator lobby is not required to be
extended to the exit unless direct
access to an exit is required by
other sections of this code.
From Significant Changes to the IBC
Coordinating changes in
other areas of the code
155
1.
The portion of the building
classified as Group F-1 or S-1 is
limited to one story in height.
2.
The minimum height from the
finished floor to the bottom of the
ceiling or roof slab or deck is 24
feet.
3.
The building is equipped
throughout with an automatic
sprinkler system in accordance
with NFPA 13.
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2015 IBC Update/Changes
1018.3
AISLES IN GROUPS B AND M
1020.2
WIDTH AND CAPACITY
• The required capacity of corridors
shall be determined as specified
in Section 1005.1, but the
minimum width shall be not less
than that specified in Table
1020.2.
• In Group B and M occupancies,
the minimum clear aisle width
shall be determined by Section
1005.1 for the occupant load
served, but shall be not less than
that required for corridors by
Section 1020.2.
• Exception: In Group I-2
occupancies, corridors are not
required to have a clear width of
96 inches in areas where there
will not be stretcher or bed
movement for access to care or
as part of the defend-in-place
strategy.
• Exception: Nonpublic aisles
serving less than 50 people and
not required to be accessible by
Chapter 11 need not exceed 28
inches in width.
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157
• New Exception
• Raised or lowered areas, or
portions of areas, in places of
religious worship that are
less than 300 square feet in
area and located 7 inches or
more above or below the
finished floor and used
primarily for the
performance of religious
ceremonies are not required
to comply with this chapter.
• 2. Separation between an
interior exit stairway or ramp
and the exit passageway
extension shall not be
required where there are no
openings into the exit
passageway extension.
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1103.2.8
AREAS IN PLACES OF RELIGIOUS
WORSHIP ACCESSIBLE ROUTE
1023.3.1
STAIRWAY EXTENSION
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2015 IBC Update/Changes
1103.2.9
EQUIPMENT SPACES
1104.4 - MULTISTORY BUILDINGS
AND FACILITIES
• At least one accessible route shall connect each
accessible story and mezzanine in multilevel
buildings and facilities.
• Spaces frequented only by
service personnel for
maintenance, repair or
occasional monitoring of
equipment are not required
to comply with this chapter.
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1106.2
GROUPS I-1, R-1, R-2, R-3 AND R-4
•
Exceptions:
1.
In Group R-2, R-3 and R-4 occupancies that
are required to have Accessible, Type A or
Type B dwelling units or sleeping units, at
least 2 percent, but not less than one, of each
type of parking space provided shall be
accessible.
2.
In Group I-1 and R-1 occupancies, accessible
parking shall be provided in accordance with
Table 1106.1.
3.
Where at least one parking space is provided
for each dwelling unit or sleeping unit, at
least one accessible parking space shall be
provided for each Accessible and Type A
unit.
4.
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Multiple tenant facilities of Group M occupancies
containing five or more tenant spaces used for the
sales or rental of goods and where at least one
such tenant space is located on a floor level above
or below the accessible levels;
2.
Stories or mezzanines containing offices of health
care providers (Group B or I);
3.
Passenger transportation facilities and airports
(Group A-3 or B);or
4.
Government buildings.
162
1107.3
ACCESSIBLE SPACES
•
Rooms and spaces available to the general
public or available for use by residents and
serving Accessible units, Type A units or
Type B units shall be accessible. Accessible
spaces shall include toilet and bathing
rooms, kitchen, living and dining areas and
any exterior spaces, including patios,
terraces and balconies.
•
Exceptions:
1.
Where parking is provided within or beneath
a building, accessible parking spaces shall
also be provided within or beneath the
building.
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1.
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Accessible parking spaces shall be provided in
Group I-1, R-1, R-2, R-3 and R-4 occupancies in
accordance with Items 1 through 4 as applicable.
1.
An accessible route is not required to stories
and mezzanines that have an aggregate area
of not more than 3,000 square feet and are
located above and below accessible
levels.This exception shall not apply to:
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Stories and mezzanines exempted by
Section 1107.4.
2.
Recreational facilities in accordance with
Section 1110.2.
3.
Exterior decks, patios or balconies that
are part of Type B units and have
impervious surfaces, and that are not
more than 4 inches below the finished
floor level of the adjacent interior space
of the unit.
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2015 IBC Update/Changes
1107.4
ACCESSIBLE ROUTE
•
At least one accessible route shall connect
accessible building or facility entrances with
the primary entrance of each Accessible
unit, Type A unit and Type B unit within the
building or facility and with those exterior
and interior spaces and facilities that serve
the units.
•
Exceptions:
1.
1107.4
ACCESSIBLE ROUTE
If due to circumstances outside the
control of the owner, either the slope of
the finished ground level between
accessible facilities and buildings
exceeds one unit vertical in 12 units
horizontal (1:12), or where physical
barriers or legal restrictions prevent the
installation of an accessible route, a
vehicular route with parking that
complies with Section 1106 at each
public or common use facility or building
is permitted in place of the accessible
route.
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In other than Group R-2 dormitory
housing provided by places of education,
in Group R-2 facilities with Accessible
units complying with Section
1107.6.2.3.1, an accessible route is not
required to connect stories or
mezzanines where Accessible units, all
common use areas serving Accessible
units and all public use areas are on an
accessible route.
5.
In Group R-1, an accessible route is not
required to connect stories or
mezzanines within individual units,
provided the accessible level meets the
provisions for Accessible units and
sleeping accommodations for two
persons minimum and a toilet facility are
provided on that level.
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In Group I-3 facilities, an
accessible route is not required
to connect stories or mezzanines
where Accessible units, all
common use areas serving
Accessible units and all public
use areas are on an accessible
route.
3.
In Group R-2 facilities with Type
A units complying with Section
1107.6.2.2.1, an accessible route
is not required to connect stories
or mezzanines where Type A
units, all common use areas
serving Type A units and all
public use areas are on an
accessible route.
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1107.4
ACCESSIBLE ROUTE
4.
2.
166
1107.4
ACCESSIBLE ROUTE
167
6.
In congregate residences in
Groups R-3 and R-4, an
accessible route is not required
to connect stories or mezzanines
where Accessible units or Type B
units, all common use areas
serving Accessible units and
Type B units and all public use
areas serving Accessible units
and Type B units are on an
accessible route.
7.
An accessible route between
stories is not required where
Type B units are exempted by
Section 1107.7.
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2015 IBC Update/Changes
1107.5.1.1
ACCESSIBLE UNITS
1107.6.1.1
GROUP R-1 ACCESSIBLE UNITS
• Accessible dwelling units and sleeping units shall be provided in accordance with Table
1107.6.1.1.
• In Group I-1 Condition 1, at
least 4 percent, but not less
than one, of the dwelling
units and sleeping units shall
be Accessible units.
• Where buildings contain more than 50 dwelling units or sleeping units, the number of
Accessible units shall be determined per building.
• Where buildings contain 50 or fewer dwelling units or sleeping units, all dwelling units and
sleeping units on a site shall be considered to determine the total number of Accessible units.
• Accessible units shall be dispersed among the various classes of units.
• In Group I-1 Condition 2, at
least 10 percent, but not less
than one, of the dwelling
units and sleeping units shall
be Accessible units.
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1107.6.4.1
GROUP R-4 ACCESSIBLE UNITS
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1109.2
TOILET AND BATHING FACILITIES
•
• In Group R-4 Condition 1, at
least one of the dwelling units
or sleeping units shall be an
Accessible unit.
Exceptions:
• In Group R-4 Condition 2, at
least two of the dwelling units
or sleeping units shall be an
Accessible unit.
• Bedrooms in Group R-4
facilities shall be counted as
sleeping units for the purpose
of determining the number of
units.
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Each toilet room and bathing room shall be accessible.
Where a floor level is not required to be connected by an
accessible route, the only toilet rooms or bathing rooms
provided within the facility shall not be located on the
inaccessible floor. Except as provided for in Sections
1109.2.2 and 1109.2.3, at least one of each type of fixture,
element, control or dispenser in each accessible toilet
room and bathing room shall be accessible.
© 2015 Colorado Code Consulting, LLC
•
1. Toilet rooms or bathing rooms accessed only
through a private office, not for common or
public use and intended for use by a single
occupant, shall be permitted to comply with the
specific exceptions in ICC A117.1.
•
6. Toilet rooms or bathing rooms designed for
bariatrics patients are not required to comply
with the toilet room and bathing room
requirement in ICC A117.1.The sleeping units
served by bariatrics toilet or bathing rooms shall
not count toward the required number of
Accessible sleeping units.
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2015 IBC Update/Changes
1109.2.3
LAVATORIES
1110.1
GENERAL
• Recreational facilities shall
be provided with accessible
features in accordance with
Sections 1110.2 through
1110.4.
• Where lavatories are provided, at least 5
percent, but not less than one, shall be
accessible.
• Where an accessible lavatory is located
within the accessible water closet
compartment at least one additional
accessible lavatory shall be provided in
the multi compartment toilet room
outside the water closet compartment.
• Where the total lavatories provided in a
toilet room or bathing facility is six or
more, at least one lavatory with enhanced
reach ranges shall be provided.
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1110.2.1
FACILITIES SERVING
ACCESSIBLE UNITS
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1110.4.1
AREA OF SPORT ACTIVITY
• In Group R-2 and R-4
occupancies where
recreational facilities serve
Accessible units, every
recreational facility of each
type serving Accessible
units shall be accessible.
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• Each area of sport activity
shall be on an accessible
route and shall not be
required to be accessible
except as provided for in
Sections 1110.4.2 through
1110.4.14.
175
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2015 IBC Update/Changes
1110.4.7
ANIMAL CONTAINMENT AREAS
1110.4.8
AMUSEMENT RIDES
• Animal containment areas that are not within public use areas are
not required to be accessible or to be on an accessible route.
• Amusement rides that move
persons through a fixed
course within a defined area
shall comply with Sections
1110.4.8.1 through
1110.4.8.3.
• Exception: Mobile or
portable amusement rides
shall not be required to be
accessible.
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1110.4.8.2 - WHEELCHAIR SPACES,
RIDE SEATS DESIGNED FOR TRANSFER
AND TRANSFER DEVICES
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1110.4.8.3
MINIMUM NUMBER
• Where amusement rides are
in the load and unload
position, the following shall
be on an accessible route.
•
Amusement rides shall provide at least one
wheelchair space, amusement ride seat
designed for transfer or transfer device.
•
Exceptions:
1.
Amusement rides that are controlled or
operated by the rider are not required to
comply with this section.
1.
The position serving a
wheelchair space.
2.
2.
Amusement ride seats
designed for transfer.
Amusement rides designed primarily for
children, where children are assisted on
and off the ride by an adult, are not
required to comply with this section.
3.
3.
Transfer devices.
Amusement rides that do not provide
seats that are built-in or mechanically
fastened shall not be required to comply
with this section.
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2015 IBC Update/Changes
1110.4.9.1
BOAT SLIPS
1110.4.9
RECREATIONAL BOATING FACILITIES
• Accessible boat slips shall be provided in accordance with Table 1110.4.9.1.
• All units on the site shall be combined to determine the number of accessible boat
slips required.
• Boat slips required to be
accessible by Sections
1110.4.9.1 and 1110.4.9.2
and boarding piers at boat
launch ramps required to be
accessible by Section
1110.4.9.3 shall be on an
accessible route.
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• Where the number of boat slips is not identified, each 40 feet of boat slip edge
provided along the perimeter of the pier shall be counted as one boat slip for the
purpose of this section.
• Exception: Boat slips not designed for embarking or disembarking are not required to be
accessible or be on an accessible route.
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1110.4.9.3
BOARDING PIERS AT BOAT
LAUNCH RAMPS
1110.4.9.2
DISPERSION
• Accessible boat slips shall
be dispersed throughout the
various types of boat slips
provided.
• Where boarding piers are
provided at boat launch
ramps, at least 5 percent, but
not less than one, of the
boarding piers shall be
accessible.
• Where the minimum number
of accessible boat slips has
been met, no further
dispersion shall be required.
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2015 IBC Update/Changes
1110.4.10
EXERCISE MACHINES AND
EQUIPMENT
1110.4.11
FISHING PIERS AND PLATFORMS
• At least one of each type of
exercise machine and
equipment shall be on an
accessible route.
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• Fishing piers and platforms
shall be accessible and be
on an accessible route.
185
1110.4.12
MINIATURE GOLF FACILITIES
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1110.4.12.1
MINIMUM NUMBER
• Miniature golf facilities shall
comply with Sections
1110.4.12.1 through
1110.4.12.3.
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• At least 50 percent of holes
on miniature golf courses
shall be accessible.
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1110.4.12.2 - MINIATURE GOLF
COURSE CONFIGURATION
1110.4.12.3
ACCESSIBLE ROUTE
• Miniature golf courses shall be
configured so that the accessible
holes are consecutive.
• Holes required to comply
with Section 1110.4.12.1,
including the start of play,
shall be on an accessible
route.
• Miniature golf courses shall provide
an accessible route from the last
accessible hole to the course
entrance or exit without requiring
travel through any other holes on the
course.
• Exception: One break in the
sequence of consecutive holes shall
be permitted provided that the last
hole on the miniature golf course is
the last hole in the sequence.
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1110.4.13 - SWIMMING POOLS, WADING
POOLS, HOT TUBS AND SPAS
•
Swimming pools, wading pools, hot tubs and
spas shall be accessible and be on an
accessible route.
•
Exceptions:
1.
Catch pools or a designated section of a
pool used as a terminus for a water slide
flume shall not be required to provide an
accessible means of entry, provided that
a portion of the catch pool edge is on an
accessible route.
2.
Where spas or hot tubs are provided in a
cluster, at least 5 percent, but not less
than one spa or hot tub in each cluster,
shall be accessible and be on an
accessible route.
3.
Swimming pools, wading pools, spas and
hot tubs that are required to be
accessible by Sections 1110.2.2 and
1110.2.3 are not required to provide
accessible means of entry into the water.
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1110.4.13.1 - RAISED DIVING
BOARDS AND DIVING PLATFORMS
• Raised diving boards and
diving platforms are not
required to be accessible or
to be on an accessible route.
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1110.4.13.2
WATER SLIDES
1110.4.14 - SHOOTING FACILITIES
WITH FIRING POSITIONS
• Water slides are not required
to be accessible or to be on
an accessible route.
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• Where shooting facilities
with firing positions are
designed and constructed at
a site, at least 5 percent, but
not less than one, of each
type of firing position shall
be accessible and be on an
accessible route.
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1405.3.1
CLASS I AND II VAPOR RETARDERS
• Class I and II vapor retarders shall
not be provided on the interior side
of frame walls in Zones 1 and 2.
1405.3.2
CLASS III VAPOR RETARDERS
• Only Class III vapor retarders
shall be used on the interior
side of frame walls where foam
plastic insulating sheathing
with a perm rating of less than
1 perm is applied in
accordance with Table
1405.3.2 on the exterior side
of the frame wall.
• Class I or II vapor retarders shall be
provided on the interior side of
frame walls in Zones 5, 6, 7, 8 and
Marine 4.
• The appropriate zone shall be
selected in accordance with
Chapter 3 of the International
Energy Conservation Code.
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• Class III vapor retarders shall
be permitted where any one of
the conditions in Table
1405.3.2 is met.
• Class I vapor retarders shall not be
provided on the interior side of
frame walls in Zones 3 and 4.
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1405.3.3 MATERIAL VAPOR
RETARDER CLASS
1803.5.7 EXCAVATION NEAR
FOUNDATIONS
• The vapor retarder class shall be
based on the manufacturer’s
certified testing or a tested
assembly.
• Where excavation will reduce support from any foundation, a
registered design professional shall prepare an assessment of the
structure as determined from examination of the structure, the
review of available design documents and, if necessary,
excavation of test pits.
• The following shall be deemed to
meet the class specified:
• Class I: Sheet polyethylene,
nonperforated aluminum foil with a
perm rating of less than or equal to
0.1.
• The registered design professional shall determine the
requirements for underpinning and protection and prepare sitespecific plans, details and sequence of work for submission.
• Class II: Kraft-faced fiberglass batts
or paint with a perm rating greater
than 0.1 and less than or equal to
1.0.
• Such support shall be provided by underpinning, sheeting and
bracing, or by other means acceptable to the building official.
• Class III: Latex or enamel paint with
a perm rating of greater than 1.0
and less than or equal to 10.0.
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1804.1
EXCAVATION NEAR FOUNDATIONS
• Excavation for any purpose
shall not reduce lateral
support from any foundation
or adjacent foundation
without first underpinning or
protecting the foundation
against detrimental lateral or
vertical movement, or both.
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1804.2
UNDERPINNING
• Where underpinning is
chosen to provide the
protection or support of
adjacent structures, the
underpinning system shall
be designed and installed in
accordance with provisions
of this chapter and Chapter
33.
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1804.2.1
UNDERPINNING SEQUENCING
1808.3.2
SURCHARGE
• No fill or other surcharge loads
shall be placed adjacent to any
building or structure unless such
building or structure is capable of
withstanding the additional loads
caused by the fill or the surcharge.
• Underpinning shall be
installed in a sequential
manner that protects the
neighboring structure and
the working construction
site.
• Existing footings or foundations
that will be affected by any
excavation shall be underpinned
or otherwise protected against
settlement and shall be protected
against detrimental lateral or
vertical movement or both.
• The sequence of installation
shall be identified in the
approved construction
documents.
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• Anchoring to concrete shall
be in accordance with ACI
318 as amended in Section
1905, and applies to cast-in
(headed bolts, headed studs
and hooked J- or L-bolts),
post-installed expansion
(torque-controlled and
displacement-controlled),
undercut and adhesive
anchors.
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• Minor grading for landscaping
purposes shall be permitted
where done with walk-behind
equipment, where the grade is not
increased more than 1 foot from
original design grade or where
approved by the building official.
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2308
CONVENTIONAL LIGHT-FRAME
CONSTRUCTION
1901.3
ANCHORING TO CONCRETE
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• Exception:
• Completely reorganized and
reformatted
• Height limitations
• Allowable floor-to-floor
height
• Allowable loads
• Ultimate wind speed
• Allowable roof span
• Risk category limitations
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2308.1.1 - PORTIONS EXCEEDING
LIMITATIONS OF CONVENTIONAL
LIGHT-FRAME CONSTRUCTION
2308.1
GENERAL
• The requirements of this section
are intended for conventional
light-frame construction.
• When portions of a building
of otherwise conventional
light-frame construction
exceed the limits of Section
2308.2, those portions and
the supporting load path
shall be designed in
accordance with accepted
engineering practice and the
provisions of this code.
• Other construction methods are
permitted to be used, provided a
satisfactory design is submitted
showing compliance with other
provisions of this code.
• Interior nonload-bearing
partitions, ceilings and curtain
walls of conventional light-frame
construction are not subject to the
limitations of Section 2308.2.
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2308.1.1 - PORTIONS EXCEEDING
LIMITATIONS OF CONVENTIONAL
LIGHT-FRAME CONSTRUCTION
• For the purposes of this section,
the term “portions” shall mean
parts of buildings containing
volume and area such as a room
or a series of rooms.
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2308.1.2
CONNECTIONS AND FASTENERS
• Connectors and fasteners
used in conventional
construction shall comply
with the requirements of
Section 2304.10.
• The extent of such design need
only demonstrate compliance of
the nonconventional light-framed
elements with other applicable
provisions of this code and shall
be compatible with the
performance of the conventional
light-framed system.
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2308.2.1
STORIES
2308.2.2
ALLOWABLE FLOOR-TO-FLOOR HEIGHT
• Structures of conventional light-frame construction shall be
limited in story height in accordance with Table 2308.2.1.
• Maximum floor-to-floor
height shall not exceed 11
feet, 7 inches.
• Exterior bearing wall and
interior braced wall heights
shall not exceed a stud
height of 10 feet.
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2308.2.3
ALLOWABLE LOADS
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2308.2.3
ALLOWABLE LOADS
• 1. Average dead loads shall not exceed
15 psf for combined roof and ceiling,
exterior walls, floors and partitions.
• 2.
Live loads shall not
exceed 40 psf for floors.
• Exceptions:
• 3.
Ground snow loads
shall not exceed 50 psf.
1.
Subject to the limitations of Section
2308.6.10, stone or masonry veneer
up to the lesser of 5 inches thick or
50 psf and installed in accordance
with Chapter 14 is permitted to a
height of 30 feet above a
noncombustible foundation, with an
additional 8 feet permitted for
gable ends.
2.
Concrete or masonry fireplaces,
heaters and chimneys shall be
permitted in accordance with the
provisions of this code.
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2308.2.4
ULTIMATE WIND SPEED
2308.2.5
ALLOWABLE ROOF SPAN
• Vult shall not exceed 130 miles per
hour (3-second gust).
• Ceiling joist and rafter framing
constructed in accordance
with Section 2308.7 and
trusses shall not span more
than 40 feet between points of
vertical support.
• Exceptions:
1.
Vult shall not exceed 140 mph
(3-second gust) for buildings
in Exposure Category B that
are not located in a hurricaneprone region.
2.
Where Vult exceeds 130 mph
(3-second gust), the provisions
of either AWC WFCM or ICC
600 are permitted to be used.
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• A ridge board in accordance
with Section 2308.7 or
2308.7.3.1 shall not be
considered a vertical support.
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2308.2.6
RISK CATEGORY LIMITATION
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2308.6
WALL BRACING
• The use of the provisions for
conventional light-frame
construction in this section
shall not be permitted for
Risk Category IV buildings
assigned to Seismic Design
Category B, C, D or E.
• Buildings shall be provided
with exterior and interior
braced wall lines as
described in Sections
2308.6.1 through
2308.6.10.2.
• Similar to IRC provisions
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2308.6.1
BRACED WALL LINES
2308.6.2
BRACED WALL PANELS
• For the purpose of determining the
amount and location of bracing required
along each story level of a building,
braced wall lines shall be designated as
straight lines through the building plan in
both the longitudinal and transverse
direction and placed in accordance with
Table 2308.6.1 and Figure 2308.6.1.
• Braced wall panels shall be placed along
braced wall lines in accordance with
Table 2308.6.1 and Figure 2308.6.1 and as
specified in Table 2308.6.3(1).
• A braced wall panel shall be located at
each end of the braced wall line and at
the corners of intersecting braced wall
lines or shall begin within the maximum
distance from the end of the braced wall
line in accordance with Table 2308.6.1.
• Braced wall line spacing shall not exceed
the distance specified in Table 2308.6.1.
In structures assigned to Seismic Design
Category D or E, braced wall lines shall
intersect perpendicularly to each other.
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• Braced wall panels in a braced wall line
shall not be offset from each other by
more than 4 feet. Braced wall panels shall
be clearly indicated on the plans.
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2308.6.4
BRACED WALL PANEL CONSTRUCTION
•
For Methods DWB, WSP, SFB, PBS, PCP and
HPS, each panel must be not less than 48
inches in length, covering three stud spaces
where studs are spaced 16 inches on center
and covering two stud spaces where studs
are spaced 24 inches on center.
•
Braced wall panels less than 48 inches in
length shall not contribute toward the
amount of required bracing.
•
Braced wall panels that are longer than the
required length shall be credited for their
actual length.
•
For Method GB, each panel must be not less
than 96 inches in length where applied to
one side of the studs or 48 inches in length
where applied to both sides.
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2308.6.5
ALTERNATIVE BRACING
• An alternate braced wall (ABW)
or a portal frame with hold-downs
(PFH) described in this section is
permitted to substitute for a 48inch braced wall panel of Method
DWB, WSP, SFB, PBS, PCP or HPS.
• For Method GB, each 96-inch
section (applied to one face) or
48-inch section (applied to both
faces) or portion thereof required
by Table 2308.6.1 is permitted to
be replaced by one panel
constructed in accordance with
Method ABW or PFH.
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2406.4.7 - GLAZING ADJACENT TO
THE BOTTOM STAIRWAY LANDING
• Glazing adjacent to the landing at
the bottom of a stairway where the
glazing is less than 36 60 inches
above the landing and within a 60inch horizontal arc that is less than
180 degrees from the bottom
tread nosing shall be considered a
hazardous location.
2902.3
REQUIRE PUBLIC TOILET FACILITIES
• New exception:
• 2. Structures and tenant
spaces intended for quick
transactions, including
takeout, pickup and dropoff, having a public access
area less than or equal to
300 square feet.
• Exception: Glazing that is
protected by a guard complying
with Sections 1015 and 1607.8
where the plane of the glass is
greater than 18 inches from the
guard.
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3004
ELEVATOR HOISTWAY VENTING
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3006 - ELEVATOR LOBBIES AND
HOISTWAY OPENING PROTECTION
• Hoistway venting deleted from the code.
•
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Elevator hoistway openings and enclosed
elevator lobbies shall be provided in
accordance with the following:
1.
Where hoistway opening protection is
required by Section 3006.2, such
protection shall be in accordance with
Section 3006.3.
2.
Where enclosed elevator lobbies are
required for underground buildings, such
lobbies shall comply with Section 405.4.3.
3.
Where an area of refuge is required and
an enclosed elevator lobby is provided to
serve as an area of refuge, the enclosed
elevator lobby shall comply with Section
1009.6.
4.
Where fire service access elevators are
provided, enclosed elevator lobbies shall
comply with Section 3007.6.
5.
Where occupant evacuation elevators are
provided, enclosed elevator lobbies shall
comply with Section 3008.6.
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3006.2
HOISTWAY OPENING PROTECTION REQUIRED
• Elevator hoistway door openings
shall be protected in accordance
with Section 3006.3 where an
elevator hoistway connects more
than three stories, is required to
be enclosed within a shaft
enclosure in accordance with
Section 712.1.1 and any of the
following conditions apply:
1.
The building is not protected
throughout with an automatic
sprinkler system in accordance
with Section 903.3.1.1 or
903.3.1.2.
2.
The building contains a Group I1 Condition 2 occupancy.
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3006.2
HOISTWAY OPENING PROTECTION REQUIRED
3.
The building contains a
Group I-2 occupancy.
4.
The building contains a
Group I-3 occupancy.
5.
The building is a high rise
and the elevator hoistway is
more than 75 feet in height.
The height of the hoistway
shall be measured from the
lowest floor to the highest
floor of the floors served by
the hoistway.
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3006.3
HOISTWAY OPENING PROTECTION
3006.2
HOISTWAY OPENING PROTECTION REQUIRED
•
Exceptions:
1.
Protection of elevator hoistway door
openings is not required where the
elevator serves only open parking
garages in accordance with Section
406.5.
2.
Protection of elevator hoistway door
openings is not required at the
level(s) of exit discharge, provided
the level(s) of exit discharge is
equipped with an automatic
sprinkler system in accordance
with Section 903.3.1.1.
3.
Enclosed elevator lobbies and
protection of elevator hoistway door
openings are not required on levels
where the elevator hoistway opens
to the exterior.
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•
Where Section 3006.2 requires protection of
the elevator hoistway door opening, the
protection shall be provided by one of the
following:
•
1. An enclosed elevator lobby shall be
provided at each floor to separate the
elevator hoistway shaft enclosure doors from
each floor by fire partitions in accordance
with Section 708. In addition, doors
protecting openings in the elevator lobby
enclosure walls shall comply with Section
716.5.3 as required for corridor walls.
Penetrations of the enclosed elevator lobby
by ducts and air transfer openings shall be
protected as required for corridors in
accordance with Section 717.5.4.1.
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3006.3
HOISTWAY OPENING PROTECTION
• 2. An enclosed elevator lobby shall be
provided at each floor to separate the
elevator hoistway shaft enclosure doors
from each floor by smoke partitions in
accordance with Section 710 where the
building is equipped throughout with an
automatic sprinkler system installed in
accordance with Section 903.3.1.1 or
903.3.1.2. In addition, doors protecting
openings in the smoke partitions shall
comply with Sections 710.5.2.2, 710.5.2.3
and 716.5.9. Penetrations of the enclosed
elevator lobby by ducts and air transfer
openings shall be protected as required
for corridors in accordance with Section
717.5.4.1.
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3006.3
HOISTWAY OPENING PROTECTION
• 3. Additional doors shall be
provided at each elevator
hoistway door opening in
accordance with Section 3002.6.
Such door shall comply with the
smoke and draft control door
assembly requirements in Section
716.5.3.1 when tested in
accordance with UL 1784 without
an artificial bottom seal.
• 4. The elevator hoistway shall be
pressurized in accordance with
Section 909.21.
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3006.4
MEANS OF EGRESS
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“Colorado Code Consulting, LLC” is a Registered Provider with The
American Institute of Architects Continuing Education
Systems (AIA/CES). Credit(s) earned on completion of this
program will be reported to AIA/CES for AIA members. Certificates
of Completion for both AIA members and non-AIA members are
available upon request.
• Elevator lobbies shall be
provided with at least one
means of egress complying
with Chapter 10 and other
provisions in this code.
This program is registered with AIA/CES for continuing professional
education. As such, it does not include content that may be deemed
or construed to be an approval or endorsement by the AIA of any
material of construction or any method or manner of handling, using,
distributing, or dealing in any material or product.
• Egress through an elevator
lobby shall be permitted in
accordance with Item 1 of
Section 1016.2.
Questions related to specific materials, methods, and services will be
addressed at the conclusion of this presentation.
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