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2009 IBC, IRC, IFCCODE CHANGE HIGHLIGHTS
Tim PateCo- Chair CCICC Code Change Committee
Senior Plans Analyst, LEED AP
City and County of Broomfield
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IRC CHANGES
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R105.2Work Exempt from Permit
Accessory structures and detached decks
that are 200 square feet or less areexempt from permits - if deck is over30 inches above grade or if it serves
the main exit door it will still needpermit
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R202Definitions
Added definition of Attic, Habitable (70
square feet minimum and headroomheights as per section R305) and
added live load, emergency escapeand rescue, smoke alarm, and verticalegress requirements for these areas
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R202Definitions
Added the word plane to Story above
grade since RB2 06/07 changed thescope of IRC to 3 stories above grade
plane. This now matches the IBC
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R202Definitions
Definition of townhouse was changed
from open space on two or more sidesto yard or public way on two or moresides since yard and public way both
have definitions
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R202Definitions
Definitions of Stair (one or more risers)
and Stairway (one or more flights ofstairs, interior or exterior, including
landings and platforms) were addedand now match what is in the IBC
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Section R302Fire Resistive Construction
This section now has all of the fire resistiveconstruction requirements for exterior walls,
projections, penetrations, party walls, andnew table for separation between house and
garage. No technical changes except one
hour fire rated party wall allowed intownhouses with fire sprinkler systems andFire separation requirements do not apply to
two separate accessory structureslocated on same lot.
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R308.4Hazardous Locations
Glazing within 24 of either vertical edge
of a door and lower than 60 abovefloor needs to be safety glazing.
Exception was added for glazing that is
adjacent to the fixed panel of slidingpatio doors
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R311.3
Floors and Landings atDoors
Added exception for exterior balconies
that are 60 square feet or less and onlyaccessible from that door
do not need the 36 landing in thedirection of travel
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R311.7.4Stair Treads and Risers
Added scoping language to require all
tolerance requirements (+ or 3/8 ontreads and risers) to be measured
exclusive of carpets, rugs, or runners
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R312Guards
Guards are required when surface is
located more than 30 inches abovefloor or grade below at any point within36 inches horizontally to the edge of
the open side and the guard needs tobe 36 minimum high above adjacent
fixed seating (benches)
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R313 and P2904Sprinkler Protection
Added new sections that will require fire
sprinklers in all new townhouses uponadoption and fire sprinklers in all newsingle family homes as of January 1,
2011 and P2904 gives details on howto design and install multipurpose
sprinkler piping systems
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R314Smoke Alarms
New exception was added so that adding
smoke alarms for installation,alterations, or repairs of plumbing or
mechanical systems is not required but
will still be required for all other interiorwork that requires permit
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R315Carbon Monoxide Alarms
Added requirements for carbon monoxide
alarms in new dwellingswhen there is a fuel fired appliance or an
attached garage - includesrequirements to add alarms for all
permits to interior when there is a fuel
fired appliance or an attached garage
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R502.2.2.1Deck Ledger Connections
This is a new section that gives
prescriptive requirements for attachingdeck ledgers to the house rim boards
Primarily requires lag bolts or throughbolts
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R602.10Wall Bracing
This section has been completely
rewritten to provide technical accuracyand clarity. Code no longer
differentiates between exterior and
interior braced walls.
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R612.3
Window Fall PreventionDevices
This section now requires window fall
prevention devices (when bottom edgeof opening is less than 24 above floorand is more than 72 above exterior
grade) to meet ASTM F 2090 whichwill meet emergency escape release
mechanism requirements
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R613
Structural Insulated PanelWall Construction
This section was added and gives all
requirements for SIP wall constructionbut does not apply to floor or roofpanels
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R806.1Attic Ventilation
The minimum size of ventilation openings
has been reduced from 1/8 to 1/16 toguard against entry of insects
Potential problem with this smaller size ifwhen you paint over and seal up
smaller holes
T bl R905 2 4 1 d
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Table R905.2.4.1 and
IBC Table 1507.2.7Asphalt Roof Shingles
These tables were added and include
ASTM D 7158 D, G, or H as alternateapproved test standard for wind loadtesting for shingles
AG 106 d IBC 3109 5
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AG 106 and IBC 3109.5
Swimming PoolEntrapment
These sections in the IRC and IBC haveboth been changed for swimming pool
entrapment avoidance to match therecently passed Virginia Graeme
Baker Pool and Safety Act
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IFC CHANGES
IFC 102 1
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IFC 102.1
Construction and DesignProvisions
The new exception clarifies that the IFC
does not apply to the interior of singlefamily dwellings built under the IRC butdoes apply to the exterior of structure
including premises identification, fireapparatus access and water supplies
IFC 511
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IFC 511
Emergency ResponderRadio Coverage
This section was added which will require
an approved Emergency ResponderRadio Coverage system in all new and
EXISTINGbuildings - no time frame for
existing buildings
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IFC 903.6.2Group I-2
This section was added and will require
fire sprinklers in all existing Group I-2occupancies (child care, detox,hospitals, mental hospitals, nursing
homes). This is only located within theIFC and not the IBC and no timetable
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ENERGY
MECHANICALPLUMBING
FUEL GAS
CODE CHANGES
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IRC ENERGY
Approximately 15% more restrictive
R-20 in exterior walls above gradeProgrammable thermostats at least one
50% of light bulbs to be high efficacy
Blower door test or visual inspectionfor air leakage
Checking for duct leakage
Heated swimming pools and snow melt systems
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INTERNATIONAL ENERGYCONSERVATION CODE
Approximately 15% more restrictive
R-20 in exterior walls above gradeProgrammable thermostats at least one
50% of light bulbs to be high efficacy
Blower door test or visual inspectionfor air leakage
Checking for duct leakage
Heated swimming pools and snow melt systems
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IRC M1411.6IMC 1101.10
Locking access caps required for
refrigerant circuit access ports that arelocated on exterior applies to airconditioning condensers also applies
to commercial installations
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IRC M1503.4
IMC 505.2
Exhaust hood systems capable ofexhausting in excess of 400 cfm willrequire makeup air to match needsto have means of closure and also
automatically controlled to start andoperate at same time as the exhaust no requirement for make up air to be
conditioned
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IRC TABLE M1502.4.4.1
IMC TABLE 504.6.4.1
There is a new table that gives equivalent
lengths of dryer exhaust duct fittingswhich you use when determiningallowable length of dryer exhaust ducts
but you can still use manufacturersinstructions to determine length
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IRC M1502.4.5
IMC 504.6.5
Where the cloths dryer exhaust duct is
concealed within building construction,the equivalent length shall be identifiedon permanent tag and be within 6 feet
of the duct connection
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IRC M1502.5
IMC 504.6.7
Protective shield plates will now be
required for clothes dryer exhaustducts that are closer than 1 tosurface of framing
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IRC M1602.2
Outdoor and return air cannot be taken
from unconditioned attics or boilerrooms
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IRC M2103.2
IMC 1209.5
Thermal barriers are now required for all
radiant floor heating systems this willapply to either slab on grade (minimumR-5) or suspended floors
(minimum R-11) and thermal breaksrequired where heated slabs meet
foundation walls
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IRC G2411.1
IFGC 310.1.1
CSST gas piping systems shall be bonded tothe electrical service grounding electrodesystem at the point where the gas serviceenters the building and bonding jumper
needs to be at least 6 AWG copper wire orequivalent or check manufacturersinstallation requirements
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IRC G2415.4
IFGC 404.4
Gas piping shall not penetrate building
foundation walls at any point belowgrade
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IRC P2503.6
IPC 312.9
Shower liner tests are now required and
specific requirements are listed
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IRC P2904
Section 2904 was added and gives
design and installation requirementsfor dwelling unit fire sprinkler systemsand is an equivalent to an NFPA 13D
fire sprinkler system- the designdrawings will need to be provided
before permit issuance
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IPC Table 403.1
Required Plumbing Fixtures
Footnote f was added to Table 403.1
which gives exception for when youhave 15 or fewer occupants then youare not required to have two drinking
fountains
IMC S i
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IMC Section 403
Mechanical Ventilation
Section 403 was substantially revised and
alters the airflow requirements alongwith the way they are calculated. Italso references breathing zones. This
will bring these in line with theASHRAE 62.1 - 2004 requirements.
This also helps in energy efficiency.
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IBC CHANGES
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202 Definitions
The definition for Labeled has been
added to reflect how approved testinglabs, inspection agencies, or otheragencies that do product evaluations
do the labeling for products.
304 1
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304.1
Business Group B
Ambulatory health care facilities were addedalong with new section 422 for specific
requirements - fire sprinklers, fire alarms,smoke compartments. Ambulatory health
care facilities are medical, surgical,psychiatric, nursing or similar care - less
than 24 hours - incapable of self
preservation (24 hours or more still I-2)
308 5 1
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308.5.1
I-4 Adult Care Facility
Adult care facilities provide accommodations forless than 24 hours for more than five
unrelated adults and provides supervisionand personal care.
Changed the exception from A-3 to R-3.If the occupants are capable of responding to
emergency without assistance then it can be
classified as R-3
310 1
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310.1
Residential Group R
Will allow a R-1 transient congregate
living facility with occupant load of 10 orless to be classified as R-3
Condos in ski towns
402 6 1
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402.6.1
Reduced Open Space
This section was added and will allow
reduced open space (40) for unlimitedarea malls. This will match reducedopen space for regular buildings
403 6 1
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403.6.1
Fire Service Elevator
This section was added and will require a
fire service access elevator for allbuildings with an occupied floor morethan 120 feet above fire department
vehicle access and refers to newSection 3007 for requirements - this
does not require separate elevator
Table 403 2 4
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Table 403.2.4
Minimum Bond Strength
This table was added and gives higher
SFRM minimum bond strengths for highrise buildings - 430 psf for building 75 to420 and 1,000 psf for buildings over 420
Higher bond strength means bettercohesion to steel members
403 5 2
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403.5.2
Additional Exit Stairway
This section was added and will require anadditional exit stair for all buildings (other than
R-2) with an occupied floor more than 420 feetabove fire department vehicle access - not
required when elevator complying with section3008 (Occupant Evacuation Elevator) is
installed - more restrictive than Fire Service
Access Elevator
403 5 5
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403.5.5
Egress Path Markings
This section was added and will requireluminous egress path markings for highrise buildings and refers to new section1024 for details. IFC Section 4604.23
requires these egress path markings tobe added to all existing high rise
buildings - no timetable
419
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419
Live Work Units
This section was added and givesrequirements for Live Work occupancies
Possible amendments:
Refer to IBC Chapter 29 for plumbingfixture requirements
Refer to IBC Chapter 10 for exit system
requirements
Table 503
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Allowable Height andBuilding Areas
B, M, S-1, and S-2 allowable stories wereall reduced for Type IIB and IIIB
construction - B went from 4 to 3, Mwent from 4 to 2, S-1 went from 3 to 2,
and S-2 went from 4 to 3. Attempted toreduce R from 4 to 3 but was defeatedsince all R occupancies require
sprinklers
508 2
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508.2
Accessory Occupancies
This section was completely changed withemphasis on clarifying that incidental use
areas are a subset of accessoryoccupancies. Storage and parking
garages were also deleted from Table508.2.5
509.2
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Horizontal BuildingSeparation Allowance
This section has been modified to allowR occupancies on the level below the 3
hour rated horizontal separation - now willallow B, M, R, multiple A (with occupant
load under 300) and incidental uses(storage areas, mechanical areas,
lobbies)
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509.5 and 509.6
Both sections have added R-1 toallowable occupancies in buildings of
Type IIIA and IIA that can have increasedheight and stories - now will be R-1 and
R-2
509.9
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Multiple buildings aboveparking garages
Section 509.9 (Multiple buildings above anenclosed or open Group S-2 parking garage)
This section was added to provide clarity that ifthere are two properly separated buildings
above an S-2 garage and built in accordancewith sections 509.2 or 509.3, they shall beregarded as separate and distinct buildings
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703.6
Marking and Identification
This section was added and will require all fireand smoke rated walls to be permanently
identified with signs or stenciling - onlyexception is R-2s that do not have removabledecorative ceiling allowing access - problems
might be rated exterior walls and otheroccupancies with hard ceilings.
704.1.1
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704.1.1
Primary Structural Frame
This section has added bracing membersthat are essential to the vertical
stability of the primary structural frameunder gravity loads to be considered
part of the primary structural frame -this relates to fire protectionrequirements in Table 601
706.5.1
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706.5.1
Fire Walls
This section has added wording thatrequires using an imaginary lot line toextend out from the intersection of afire wall at exterior wall in order to
verify requirements for exterior walland opening protection
706.8
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Openings
This section was changed so that theallowable size of fire rated openings infire walls went from 120 square feet to
156 square feet - still cannot have
openings in party walls and still canhave any size openings when building
has NFPA 13 sprinkler system
708.2
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Shaft Enclosure Required
Exception 14 was added and will exemptelevators in open and enclosed
parking garages that only serve theparking garage. Exception 15 was
added and will exempt mechanicalshafts in parking garages
708.14.1
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Elevator Lobby
Elevator lobbies are now required inGroup I-2 occupancies (detox, childcare, hospital, nursing home) and
exception 7 was added which exempts
elevators serving only open parkinggarages from needing an elevator
lobby
714.1 Exception 5
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p
Joints
This section has added wording thatexempts joints in fire resistive walls,ramps, and floors within enclosedparking garages matches open
parking garages
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903.2.2 Group E
The threshold for requiring a fire sprinklerin E occupancies was reduced from20,000 square feet down to 12,000
square feet
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903.2.6 Group M
Group M occupancies which are usedprimarily for the display and sale of
upholstered furniture will require firesprinklers furniture that has padding
inserts not mattresses and boxsprings as per CPSC
THIS DOES NOT HAVE ANY SIZE
THRESHOLD
903.2.9
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Group S-2
This section now requires a sprinklersystem when the fire area of enclosedparking garages exceeds 12,000 s. f.,or exceeds three stories above grade
plane, or total fire areas exceed 24,000s.f., or fire area exceeds 5,000 s.f for
storage of commercial trucks
Table 1005.1
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Egress Width
Table 1005.1 was deleted along with
the sprinkler exception to reduce exitwidths - .3 inch per occupant for stairs
and .2 inch for all other egress
components is to be used for anybuilding and space - potential problemmay be existing building - use section
3412
1007.3 and 1007.4
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Exit Stairs and Elevators
Both sections have exception added backfor a fire sprinkler system in lieu of the
required areas of refuge but newsection 1007.8 was added and two
way communication systems are nowrequired at all elevator landings even ifbuilding has approved sprinkler system
1007.6.2
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Required Separation ofAreas of Refuge
Areas of refuge are required to beseparated by a smoke barrier. Theword vertical was deleted from theexception. Areas of refuge can be
located within an exit enclosure whichcould include an exit passageway
1007.8
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Two Way Communication
This section was modified and givesspecific requirements for two way
communication systems for areas ofrefuge and at elevator landings
1008.1.2
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Door Swing
Exception 9 was added and allowsmanually operated horizontal sliding
doors from spaces with occupant loadof 10 or less - similar to exception 1
1009.4.1
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Dimension ReferenceSurfaces
This section was added and requires thatstair treads and risers need to meetthe required dimensions exclusive of
carpets, rugs, or runners
1009.4.5
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Profile
Exception 2 now allows open risers in F,H, and S occupancies where not
accessible to the public
1009.12
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Handrails
Handrails are only required on 4 or morerisers within R-2 and R-3 occupancies previously required for 2 or more -
now matches the IRC - now only
difference between IBC and IRC isguard needs to be 42 high in IBC
dwelling units
1009.13
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Guards
Guards will be required when surface islocated more than 30 inches measuredvertically to the floor or grade below atany point within 36 inches horizontally
to the edge of open side
1014.3
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Common Path ofEgress Travel
Exception 4 now allows 125 footmaximum travel distance in R-2
occupancy when you have 13R system previously just for 13 system
1021.2 and Table 1021.2
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Single exits
Section 1021.2 and Table 1021.2 havebeen modified by changing the word
building to stories for the requirementsfor only allowing a single exit
1507.16
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Roof Gardens andLandscaped Roofs
This section was added and refers you tosections 1607.11.2.2 and 1607.11.2.3
for design requirements
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2009 CODE CHANGES
You can go up on the ICC websitewww.iccsafe.org and get more specific
information about all previous codechanges. If you need additional
information please contactTim Pate at [email protected]