2018 IRC Transition from 2012 sv2 01-04-2018 · International Residential Code ® (IRC®) Identify changes between the 2012 and 2018 IRC Apply code requirements to design, plan submittals

2018 IRC Update

Copyright 2017 International Code Council 1

2018 IRC Transition from 2012 IRC2018 IRC Transition from 2012 IRCBased on the International Residential Code® (IRC®)

Identify changes between the 2012 and 2018 IRC

Apply code requirements to design, plan submittals and/or inspection.

2018 IRC Transition from the 2012 IRC

Identify the differences between 2012 and 2018 IRC.

Explain how the changes impact design and construction under the IRC


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ASK QUESTIONS!!!!


2018 IRC Update


Scope and Administration and DefinitionsScope and Administration and Definitions

Part 1

R 101.2, R202 Scope – Accessory StructuresR 101.2, R202 Scope – Accessory Structures

Maximum height from 2 to 3 stories

Technical requirements removed from definition

Unlimited in area


2015

R101.2 ScopeR101.2 Scope


Exceptions 1 through 5

2018 R104.11 Alternative Materials and Methods of ConstructionR104.11 Alternative Materials and Methods of Construction2015 Reason for disapproval

2018 Application, Equivalencies


2018 IRC Update


R105.1, R110.1, R202Change of OccupancyR105.1, R110.1, R202Change of Occupancy


2018 R105.3.1.1 Existing Buildingsin Flood Hazard AreasR105.3.1.1 Existing Buildingsin Flood Hazard Areas

Determination of substantial improvement by building official

Related provisions consolidated in R105.3.1.1.


2015

R202 Definition of AccessR202 Definition of Access


2018

Building PlanningBuilding Planning

Chapter 3

2018 IRC Update


Table 301.2(1) Climatic and Geographic Design CriteriaTable 301.2(1) Climatic and Geographic Design Criteria


2015 2018Special wind region ACCA Manual J

Windborne debris zone

R301.2.1 Wind Design Criteria and Wind Speed MapsR301.2.1 Wind Design Criteria and Wind Speed MapsFigure R301.2(5)B Regions Where Wind Design Is Required >140 mph Vult non-hurricane areas (108 Vasd) >130 mph Vult hurricane areas (101 Vasd)


2015

R301.2.1.1.1 Sunrooms R301.2.1.1.1 Sunrooms R301.2.1 Wind design

criteria Sunrooms to comply

with AAMA/NPEA/NSA 2100-12.

Habitable and non-habitable

Conditioned and unconditioned


2015 R301.2.1.2 Protection of Openings in Wind Borne Debris RegionsR301.2.1.2 Protection of Openings in Wind Borne Debris Regions Prescriptive attachment of wood

structural panels: Mean roof height limit increased

from 33 to 45 ft. To permit on 3-story buildings


2015

2018 IRC Update


R301.2.1.4 Wind Exposure CategoryR301.2.1.4 Wind Exposure Category Wind Exposure Category A deleted Wind Exposure Category D: Unobstructed areas ≥5,000 ft.: Open water Mud and salt flats Unbroken ice fields Includes hurricane-prone regions.


2015


2018

R301.3 Story Height R301.3 Story Height Story height 11ft. 7in.: Wood and steel wall

framing Insulated concrete SIP walls

Masonry wall height is limited to 13 ft 7in.


11 ft. 7 in. Max.

Story height

Story height

2015 R302.1 Exterior WallsR302.1 Exterior Walls


2015

2018 IRC Update


R302.1 Exterior WallsR302.1 Exterior Walls


Fireblocking not required

2018 R302.2Townhouse SeparationR302.2Townhouse Separation

2015


R302.2 Townhouse SeparationR302.2 Townhouse Separation


2018 R302.2 Townhouse SeparationR302.2 Townhouse Separation


2018

2018 IRC Update


R302.3 Two-Family Dwelling SeparationR302.3 Two-Family Dwelling Separation


2018 R302.13 Fire Protection of FloorsR302.13 Fire Protection of Floors


Moved from Chapter 5 to the fire-resistant construction provisions of Section R302.

Does not regulate penetrations or openings in membrane.

2015

R302.13 Fire Protection of Floors above Crawl SpacesR302.13 Fire Protection of Floors above Crawl Spaces


2018 R303.7, R303.8 Stairway IlluminationR303.7, R303.8 Stairway Illumination Interior and exterior in

separate sections Interior to illuminate

treads and landings Exterior light source

at top landing Bottom landing

accessing basement


2015

2018 IRC Update


R304.1 Minimum Habitable Room AreaR304.1 Minimum Habitable Room Area

Deletes 120 square feet minimum area


2015 R305Ceiling HeightR305Ceiling Height 6 feet 8 inches: Bathrooms Toilet rooms Laundry rooms

6 feet, 4 inches all basements: Beams Girders Ducts Other obstructions


2015

R308.4.2 Glazing Adjacent to DoorsR308.4.2 Glazing Adjacent to Doors Glazing installed

perpendicular to a door < 24 inches from door Safety glazing if on hinge

side of an in-swinging door


2015 R308.4.2 Glazing Adjacent to DoorsR308.4.2 Glazing Adjacent to Doors


2018

2018 IRC Update



R308.4.2 Glazing Adjacent to Doors

R308.4.2 Glazing Adjacent to Doors

2018 R308.4.4 Glazing in Guards and RailingsR308.4.4 Glazing in Guards and Railings


2018

R308.4.4 Glazing in Guards and RailingsR308.4.4 Glazing in Guards and Railings


Glass infill panels are not structural balusters

2018 R3804.5 Glazing and Wet SurfacesR3804.5 Glazing and Wet Surfaces


Not safety glazing when ≥ 60 in. from edge of Shower Sauna Steam room

2015

2018 IRC Update


R308.4.7 Glazing Adjacent to the Bottom Stair LandingR308.4.7 Glazing Adjacent to the Bottom Stair Landing


Area in front of the plane of the bottom tread.

2015 R308.4.7 Glazing Adjacent to the Bottom Stair LandingR308.4.7 Glazing Adjacent to the Bottom Stair Landing


2018

Hazardous location

R310 Emergency Escape and Rescue OpeningsR310 Emergency Escape and Rescue Openings Reorganized Separate provisions

for windows and doors Less precise sill height

measurement Grade floor or below

grade openings 5.0


2015 R310.1 Emergency Escape and Rescue Openings R310.1 Emergency Escape and Rescue Openings


2018

2018 IRC Update


R310.3 Area Wells for Emergency Escape and Rescue DoorsR310.3 Area Wells for Emergency Escape and Rescue Doors


Bulkhead enclosure ------------------------ Area well

2018R310.3 Area Wells for Emergency Escape and Rescue Doors

R310.3 Area Wells for Emergency Escape and Rescue Doors


2018

R310.5, R310.6 Emergency Escape and Rescue Openings for Additions, Alterations and Repairs

R310.5, R310.6 Emergency Escape and Rescue Openings for Additions, Alterations and Repairs No additional

emergency escape and rescue openings: Basement addition with

access to an emergency escape and rescue opening

Alterations or repairs to an existing basement unless new bedroom


2015R311.7.1 and R311.7.8 Handrail Projection

R311.7.1 and R311.7.8 Handrail Projection


2018

2018 IRC Update


R311.7.1 and R311.7.8 Handrail ProjectionR311.7.1 and R311.7.8 Handrail Projection


2018R311.7.3 Vertical RiseR311.7.3 Vertical Rise


2018

2012 2015 2018144 in. 147 in. 151 in.

R311.7.5.1 Stair RisersR311.7.5.1 Stair Risers Open risers based on

distance above grade or the floor below (not total rise)

Open risers permitted on spiral stairways


2015


R311.7.11, R311.7.12 Alternating tread devices & Ships ladders

R311.7.11, R311.7.12 Alternating tread devices & Ships ladders

2015 & 2018

2018 IRC Update


R311.8 RampsR311.8 Ramps Ramps that serve the

required egress door: 1:12 slope Unless infeasible

Other ramps: 1:8 slope


2015 R312.1GuardsR312.1Guards Deletes provision for

measuring guard height from surface of adjacent fixed seating


2015

R312.1 GuardsR312.1 Guards


2018 R314Smoke AlarmsR314Smoke Alarms Battery-operated permitted

for alterations, repairs, and additions to existing buildings

Household fire alarm systems no longer require monitoring by an approved supervising station.


2015

2018 IRC Update


R314Smoke AlarmsR314Smoke AlarmsR314.3 Location

4. ≥ 3 ft horizontally from door of a bathroom

R314.3.1 Minimum distance from cooking appliances

Type of alarm Separation

Ionization 20 ft

Ionization with alarm-silencing switch 10 ft

Photoelectric 6 ft

2015


R314 Smoke AlarmsInterconnection always requiredR314 Smoke AlarmsInterconnection always required


2018

R315 Carbon Monoxide AlarmsR315 Carbon Monoxide Alarms2015 IRC 2018 IRC

• House wiring & battery backup

• Exterior work OK• Attached garage …• CO alarm in bedroom …• CO detection systems -

locations per code

• Interconnection required for multiple CO alarms


R322.3 Coastal High-Hazard Flood Zones R322.3 Coastal High-Hazard Flood Zones


2015 & 2018

2018 IRC Update


R324.6 Roof Access for PV Solar Energy SystemsR324.6 Roof Access for PV Solar Energy Systems


2018 R324.6.2.2 Solar Panels Near Emergency Escape and Rescue Openings

R324.6.2.2 Solar Panels Near Emergency Escape and Rescue Openings


2018

R325MezzaninesR325Mezzanines Mezzanine. An

intermediate level or levels between the floor and ceiling of any story.

Limitations on ceiling height and openness consistent with IBC


2015 R325.3 Mezzanine Area LimitationR325.3 Mezzanine Area Limitation


2018

2018 IRC Update


R325.6 and R202 Habitable AtticsR325.6 and R202 Habitable Attics


2018 R326 Swimming Pools, Spas and Hot TubsR326 Swimming Pools, Spas and Hot Tubs The design and

construction of pools and spas shall comply with the International Swimming Pool and Spa Code (ISPSC).

Appendix G Swimming Pools, Spas and Hot Tubs


2015

FoundationsFoundations

Chapter 4

R403.1.1 Minimum Footing SizeR403.1.1 Minimum Footing Size Expanded tables Type of structure

Light frame Veneer Concrete

Type of foundation Slab on grade Crawl space Basement

Expanded tables Roof snow load 32-ft. wide house No. of stories


2015

2018 IRC Update


R403.1.1 Minimum Footing SizeR403.1.1 Minimum Footing Size


2015Minimum Required FootingMinimum Required Footing

Two-story house with slab on grade foundation: Light-frame construction Soil-bearing strength @ 1500 psf Roof Live Load @ 20 psf 32ft. wide building with interior load-bearing wall


2015

R403.1.3 Footing and Stem Wall Reinforcing in Seismic Design Categories D₀, D₁, and D₂R403.1.3 Footing and Stem Wall Reinforcing in Seismic Design Categories D₀, D₁, and D₂

Defines required reinforcing

Updated figures


2015 R403.1.6Foundation AnchorageR403.1.6Foundation Anchorage Anchor bolts in the middle

third of sill plate Measured to edge of bolt (Optimum 1¾ in.)


2015

2018 IRC Update


Table R403.3(1) Insulation requirements

for frost protected footings

Table R403.3(1) Insulation requirements

for frost protected footings

2018


Table R403.4 Crushed Stone FootingsTable R403.4 Crushed Stone Footings


2018

R404.4 Retaining WallsR404.4 Retaining Walls Retaining walls > 24 48 in. of unbalanced backfill

designed in accordance with accepted engineering practice (consistent with R404.1.3)

> 24 in. if resisting additional lateral loads Freestanding walls not supported at top Not supporting buildings


2015 R408.3 Unvented Crawl SpaceR408.3 Unvented Crawl Space


2018

2018 IRC Update


FloorsFloors

Chapter 5

Tables R502.3.1(1), R502.3.1(2) Floor Joist Spans for Common Lumber SpeciesTables R502.3.1(1), R502.3.1(2) Floor Joist Spans for Common Lumber Species

Span lengths Decreased for

Southern Pine Increased for DFL and

HF

2 X 10 Floor JoistsDead load = 10 psfLive load = 40 psf16 in. o.c. spacing


2015

Spans 2012 2015#2 SP 16 - 1 14 - 0#2 DFL 15 - 5 15 - 7#2 HF 15 - 2 15 - 2

#1 SP: 16 – 1 in 2015

R507 DecksR507 Decks


2018 R507.2, R507.3 Deck MaterialsR507.2, R507.3 Deck Materials


2018

2018 IRC Update


R507.3 Deck FootingsR507.3 Deck Footings


2018R507.4 Deck PostsR507.4 Deck Posts

Deck post size Beam plies Maximum height (ft. – in.)

4 x 4 3 or more 6-94 x 4 1 or 2 84 x 6 86 x 6 148 x 8 14


2015 & 2018


2015 & 2018R507.5

Deck Beams

R507.5 Deck Beams

R507.5 Deck BeamsR507.5 Deck Beams


2018

2018 IRC Update


R507.6 Deck JoistsR507.6 Deck Joists


2015 & 2018

R507.6 Deck Joists

R507.6 Deck Joists


2018

R507.7-R507.9 Decking, Vertical and Lateral Supports

R507.7-R507.9 Decking, Vertical and Lateral Supports


2015 & 2018 R507.9.2 Alternative Deck Lateral Load ConnectionR507.9.2 Alternative Deck Lateral Load ConnectionOptional Connections Figure 507.2.3(1): Two hold-down

devices ≤ 2 ft of the ends of the deck

Figure 507.2.3(1): Four hold-downs

installed below the deck structure


2015

2018 IRC Update


Wall ConstructionWall Construction

Chapter 6

Table R602.3(1) Fastener Schedule for Structural MembersTable R602.3(1) Fastener Schedule for Structural Members


The fastening schedule now contains multiple nail size options Box and air driven nails

Roof rafter connections at ridge, valley, and hip Double top plate splicing Joist-to-band-joist (rim board) connection

2015

R602.3.1 Alternate Stud HeightsR602.3.1 Alternate Stud Heights


2015 & 2018 Tables R602.7(1), R602.7(2) Girder and Header Spans

Tables R602.7(1), R602.7(2) Girder and Header Spans


2015 & 2018

2018 IRC Update


Tables R602.7(1), R602.7(2) Girder and Header SpansTables R602.7(1), R602.7(2) Girder and Header Spans


2018

Dropped header with pony wall above

Table R602.7.5 Full Height Studs at End of Headers

Table R602.7.5 Full Height Studs at End of Headers


2015 & 2018

Wall BracingWall Bracing


Table R602.10.3 (4) Seismic Adjustment Factors

Table R602.10.3 (4) Seismic Adjustment Factors


2018

2018 IRC Update


R602.10.4.1 Mixing Bracing MethodsR602.10.4.1 Mixing Bracing Methods


2018

3500 lb. strap


2015

Table R602.10.5 Min. Length BWPsTable R602.10.5 Min. Length BWPsMethod Minimum length (in) Contributing

length (in)Wall height (ft)

8 9 10 11 12PFH – roof only 16 16 16 18 20 48

PFH - story+roof 24 24 24 27 29 48

PFG SDC A, B, C 24 27 30 33 36 1.5 × Actual

CS-PF 16 18 20 22 24 ActualCS-PF SDC A, B, C 16 18 20 22 24 1.5 × Actual

CS-PF SDC D0, D1, D2 16 18 20 22 24 Actual


2015R602.10.6.2 Method PFHR602.10.6.2 Method PFHPortal Frame with Hold-Downs Recent testing Minimum hold-down capacity

lowered to 3500 lbs Two sill plates are sufficient (3 in

2012 IRC)


2015

2018 IRC Update


R602.10.6.4 Method CS-PF—Continuously Sheathed Portal FrameR602.10.6.4 Method CS-PF—Continuously Sheathed Portal Frame


2018 R602.12Simplified Wall BracingR602.12Simplified Wall Bracing


3-story buildings (previously 2) Wind Exposure B and C Factor for no. of bracing units for Exp. C: x 1.2 for 1-story x 1.3 for 2-story x 1.4 for 3-story

Wind speed (Vult) 115 and 130 mph (90, 100 Vasd)

2015

Wall CoveringsWall Coverings

Chapter 7

R703.2 Water-resistive BarrierR703.2 Water-resistive Barrier


1.Per manufacturer

2.Detached accessory buildings

2018

2018 IRC Update


R703.3 Siding Material Thickness and AttachmentR703.3 Siding Material Thickness and Attachment Replaced Table R703.4, Weather Resistant

Siding Attachment and Minimum Thickness New language clarifies limitations of table and

describes fastener type, length, and penetration. Footnotes to text Columns deleted


2015 R703.3.1 Soffit InstallationR703.3.1 Soffit Installation


• And wood structural panels

2018

R703.8.4 Veneer Anchorage Through Insulation

R703.8.4 Veneer Anchorage Through Insulation

2018


R703.9 Exterior Insulation and Finish SystemsR703.9 Exterior Insulation and Finish Systems Limitations for EIFS EIFS without drainage: Concrete and masonry

EIFS with drainage: All other wall assemblies


2015

2018 IRC Update


R703.11.1Vinyl Siding AttachmentR703.11.1Vinyl Siding Attachment Min. 1¼ inches into

“nailable substrate” or Through sheathing per test

report and manufacturer Nail 0.120 shank x 0.313

head 16 in. o.c.


2015 R703.11.2 Vinyl Siding Installation Over Foam Plastic SheathingR703.11.2 Vinyl Siding Installation Over Foam Plastic Sheathing


2018

R703.13, R703.14 Insulated Vinyl Siding and Polypropylene SidingR703.13, R703.14 Insulated Vinyl Siding and Polypropylene Siding

Insulated vinyl siding ≥ R-2 Continuous insulation Improved moisture control

Polypropylene siding requires separation: 5 ft. lot lines 10 ft. building on other lot

Fastening requirements


2015 R703.15, R703.16, R703.17 Cladding Attachment over Foam SheathingR703.15, R703.16, R703.17 Cladding Attachment over Foam Sheathing

To wood framing (R703.15),

To cold-formed steel framing (R703.16), and

To masonry or concrete walls (R703.17).


2015

2018 IRC Update


Roof-Ceiling ConstructionRoof-Ceiling Construction

Chapter 8

R802 Roof Framing

R802 Roof Framing


• Reorganized

2018

R802.1.5.4 FRTW LabelingR802.1.5.4 FRTW Labeling


2018 Tables R802.4, R802.5 Ceiling Joist and Rafter Span TablesTables R802.4, R802.5 Ceiling Joist and Rafter Span Tables Span lengths Decreased for

Southern Pine Increased for

DFL and HF


2015

2018 IRC Update


R806.2 Minimum Vent AreaR806.2 Minimum Vent Area


• Both conditions to take reduction• Zone 6,7,8 Class I-II vapor retarder• 40-50% within 3 ft. of ridge

2018

Roof AssembliesRoof Assemblies

Chapter 9

R905.1.1UnderlaymentR905.1.1Underlayment


Underlayment and ice barrier provisions combined for all roofing types

R905.16 Photovoltaic ShinglesR905.16 Photovoltaic Shingles Additional requirements

and limits for photovoltaic shingles

R905.16 Photovoltaic shingles.

R905.16.1 Deck requirements.

R905.16.2 Deck slope. R905.16.3 Underlayment. R905.16.4 Underlayment

application. R905.16.4.1 Ice barrier. R905.16.4.2 Underlayment

and high winds.


2015

2018 IRC Update


R905.17 Building Integrated Photovoltaic Panels

R905.17 Building Integrated Photovoltaic Panels


2018 R907 Rooftop-MountedPhotovoltaic SystemsR907 Rooftop-MountedPhotovoltaic Systems

Requirements and limits for rooftop-mounted photovoltaic systems Wind resistance Fire classification Installation Ref. R324 and NFPA

70Check errata to Section R324 of the 2015 IRC


2015

2015 ISEPInternational Solar Energy Provisions & Commentary


Chimneys and FireplacesChimneys and Fireplaces

Chapter 10

2018 IRC Update


R1005.8 Chimney Insulation ShieldR1005.8 Chimney Insulation Shield


2018

Energy EfficiencyEnergy Efficiency

Chapter 11

N1101.6, Definition of Air Barrier N1101.6, Definition of Air Barrier

2018


N1101.6, Definition of Building Thermal EnvelopeN1101.6, Definition of Building Thermal Envelope

2018


2018 IRC Update


N1101.6, Tables N1101.10.3(1) and N1101.10.3(2) Fenestration Definitions and U-Factors

N1101.6, Tables N1101.10.3(1) and N1101.10.3(2) Fenestration Definitions and U-Factors

• Clarification• Opaque door

2018


N1101.13Compliance PathsN1101.13Compliance Paths

1. Sections N1101.14 through N1104.

2. Section N1105 and the provisions of Sections N1101.14 through N1104 labeled “Mandatory.”

3. An energy rating index (ERI) approach in Section N1106.

Projects shall comply with one of the following:

Prescriptive and mandatory provisionsPrescriptive and mandatory provisions

Performance and mandatory provisionsPerformance and mandatory provisions


2015

N1101.14Permanent Energy CertificateN1101.14Permanent Energy Certificate Inside building:

On wall in furnace space or utility room, or

Another approved location


2015 N1102.1 Building Thermal Envelope for Log HomesN1102.1 Building Thermal Envelope for Log Homes


• Blower door test still applies

2018

2018 IRC Update


Tables N1102.1.2 and N1102.1.4 Insulation and Fenestration Requirements

Tables N1102.1.2 and N1102.1.4 Insulation and Fenestration Requirements

• Lower U-factors

• Zone 3 and above

2018


Tables N1102.1.2 and N1102.1.4 Prescriptive U-Factors

Tables N1102.1.2 and N1102.1.4 Prescriptive U-Factors

2018


N1102.1.3 R-Valve Computation- Insulated SidingN1102.1.3 R-Valve Computation- Insulated Siding Insulated siding as

continuous insulation in satisfying wall R-value.

Min R-2 Labeled R-value reduced

by R-0.6 for calculation purposes


2015 N1102.2.2 Reduction of Ceiling InsulationN1102.2.2 Reduction of Ceiling Insulation


2018

2018 IRC Update


N1102.2.4 Access Hatches and DoorsN1102.2.4 Access Hatches and Doors Vertical doors that

access unconditioned attics and crawl spaces: Do not require an R-

value to match the required wall insulation.

Must comply with the fenestration U-factor requirements of Table N1102.1.2.


2015N1102.2.5 Mass WallsN1102.2.5 Mass Walls

2018


N1102.2.8, Table N1102.4.1.1 Floor Framing Cavity InsulationN1102.2.8, Table N1102.4.1.1 Floor Framing Cavity Insulation Permits air space

above floor framing cavity insulation

Table N1102.4.1.1 reformatted into three columns to separate air barrier from insulation requirements.


2015

• RESNET/ICC 380

2018


2018 IRC Update


N1103.3 Duct Sealing and TestingN1103.3 Duct Sealing and Testing Duct sealing and testing reorganized Maximum duct leakage rates now prescriptive for

flexibility If not part of the heating or

cooling system ductwork, ducts serving HRV or ERV do not require air test


2015 & 2018 N1103.5 Heated Water Circulation and Temperature Maintenance SystemsN1103.5 Heated Water Circulation and Temperature Maintenance Systems

Automatic controls Continuously operating circulation pumps are

no longer permitted. Heat trace systems must comply with one of

the referenced standards.


2015


2018N1104.1 LightingN1104.1 Lighting

2018


2018 IRC Update


N1106.3, N1106.4 Maximum Energy Rating IndexN1106.3, N1106.4 Maximum Energy Rating Index


2018

MechanicalMechanical

Chapters 12 through 23

M1305.1.1 Access to Furnaces within CompartmentsM1305.1.1 Access to Furnaces within Compartments

2018


M1305.1.3.2 Appliances Installed in PitsM1305.1.3.2 Appliances Installed in Pits


2018

2018 IRC Update


M1502.3.1 Dryer Exhaust Duct TerminationM1502.3.1 Dryer Exhaust Duct Termination


2018

• 12.5 sq. in.

M1502.4.2 Concealed Dryer Exhaust DuctsM1502.4.2 Concealed Dryer Exhaust Ducts


2018

M1502.4.4, M1502.4.5 Dryer Exhaust Duct Power Ventilators M1502.4.4, M1502.4.5 Dryer Exhaust Duct Power Ventilators Dryer exhaust duct power

ventilators (DEDPVs) Listed and labeled UL

705 Max. length per

manufacturer


2015 M1502.4.6Dryer Duct Length IdentificationM1502.4.6Dryer Duct Length Identification Permanent label where

>35 feet Not required where ≤ 35

feet Whether the duct is

concealed or not


2015

2018 IRC Update


M1503.6 Makeup Air for Kitchen Exhaust SystemsM1503.6 Makeup Air for Kitchen Exhaust Systems Makeup air for kitchen

exhaust systems >400 cfm: Automatic damper, or Gravity damper Transfer openings okay

2015


M1503.6 Makeup Air for Kitchen Exhaust SystemsM1503.6 Makeup Air for Kitchen Exhaust Systems

2018

• Not required if all direct vent or mechanical draft vent• Domestic cooking exhaust


M1506.2 Exhaust Duct LengthM1506.2 Exhaust Duct Length Maximum exhaust duct lengths based on: Duct diameter Type of duct Exhaust fan airflow rating


2015 M1601.1.2 Underground Duct SystemsM1601.1.2 Underground Duct Systems


2018

2018 IRC Update


M1601.4 Duct InstallationM1601.4 Duct Installation Tapes and mastics for sheet metal ducts listed to

UL 181 B Snap-lock and button-lock seams no longer

exempt from the sealing


2015 M2101.10 Pressure Tests for Hydronic PipingM2101.10 Pressure Tests for Hydronic Piping

2018


M2103.2 Thermal Barrier for Radiant Floor Heating Systems

M2103.2 Thermal Barrier for Radiant Floor Heating Systems


2018

Fuel GasFuel Gas

Chapter 24

2018 IRC Update


G2404.11 Condensate PumpsG2404.11 Condensate Pumps Condensate pumps Uninhabitable spaces Shut down equipment if pump fails


2015 G2406.2 Prohibited Locations for AppliancesG2406.2 Prohibited Locations for Appliances

2018


G2411.2 Electrical Bonding of Corrugated Stainless Steel TubingG2411.2 Electrical Bonding of Corrugated Stainless Steel Tubing

75-foot maximum allowable length of bonding jumper

Bonding methods must comply with NFPA 70

Devices, such as clamps, must be listed in accordance with UL 467


2015 G2411.2, G2411.3 Electrical Bonding of CSSTG2411.2, G2411.3 Electrical Bonding of CSST


2018

2018 IRC Update


G2413.2 Maximum Gas DemandG2413.2 Maximum Gas Demand Table G2413.2 Approximate

Input and the reference to it were deleted

The code requires the actual maximum input rating of the appliances to be known and used for gas pipe sizing purposes.


2015 G2414.4.2, G2414.10.1 Schedule 10 Steel Gas Piping

G2414.4.2, G2414.10.1 Schedule 10 Steel Gas Piping

2018


G2414.6Plastic Pipe, Tubing and FittingG2414.6Plastic Pipe, Tubing and Fitting PVC and CPVC pipe are expressly prohibited

materials for supplying fuel gas.


2015 G2415.7 Protection of Concealed Piping Against Physical DamageG2415.7 Protection of Concealed Piping Against Physical Damage Rewritten to address

concealed piping: Parallel to framing

members Within framing members

Protection must extend 4 inches beyond edge of members that are bored or notched


2015

2018 IRC Update


G2415.11 Protection Against CorrosionG2415.11 Protection Against Corrosion

2018


G2420.5.1 Shutoff Valve LocationG2420.5.1 Shutoff Valve Location


2018

G2420.6 Support for Shutoff Valves in Tubing Systems

G2420.6 Support for Shutoff Valves in Tubing Systems

2018


G2421.2 Medium-Pressure RegulatorsG2421.2 Medium-Pressure Regulators Medium-Pressure (MP) line regulators installed

in rigid piping must have a union installed to allow removal of the regulator.


2015

2018 IRC Update


G2426.7.1 Door Clearance to Vent TerminalsG2426.7.1 Door Clearance to Vent Terminals An appliance vent

terminal is not permitted in a location with 12 inches of the arc of a swinging door.


2015 G2427.8 Venting System Termination LocationG2427.8 Venting System Termination Location 10-foot separation where vent discharges in the

direction of an opening in an adjacent building.


2015

G2439.4, G2439.7 Clothes Dryer Exhaust DuctsG2439.4, G2439.7 Clothes Dryer Exhaust Ducts Dryer exhaust duct power ventilators (DEDPVs)

UL 705 per manufacturer

Permanent label: Duct length

>35 feet Duct

concealed or not

Duct fasteners permitted


2015 G2442.2 Forced Air Furnace Duct SizeG2442.2 Forced Air Furnace Duct Size


2018

2018 IRC Update


G2447.2 Commercial Cooking AppliancesG2447.2 Commercial Cooking Appliances


2018

PlumbingPlumbing


P2502.1, P2503.4 Inspection and Tests for Building SewersP2502.1, P2503.4 Inspection and Tests for Building Sewers When the entire sanitary drainage system is replaced: Internal examination of underground and under slab

piping is required toverify: Size Slope Condition


2015 P2503.5 Drain, Waste, and Vent Systems TestingP2503.5 Drain, Waste, and Vent Systems Testing

The head pressure for a water test on DWVsystems has been reduced from 10 feet to 5 feet.


2015

2018 IRC Update


P2503.7 Air Testing of PEX PipingP2503.7 Air Testing of PEX Piping

2018


P2602.1 Connections to Public Sewer or Private Sewage Disposal System

P2602.1 Connections to Public Sewer or Private Sewage Disposal System

2018


P2603.2.1 Protection Against Physical DamageP2603.2.1 Protection Against Physical Damage

Edge distance reduced from <1½ in. to <1¼ in.

Accommodates ½-in. dia. copper pipe in 2x4 framing


2015 P2702.1, P2706.1Waste ReceptorsP2702.1, P2706.1Waste Receptors

A definition of waste receptor has been added to the code.

Waste receptors are now permitted in bathrooms and closets.

WASTE RECEPTOR. A floor sink, standpipe, hub drain or a floor drain that receives the discharge of one or more indirect waste pipes.


2015

2018 IRC Update


P2704 Slip Joint ConnectionsP2704 Slip Joint Connections

2018


P2713.1 Bathtub OverflowP2713.1 Bathtub Overflow


2018

P2717Dishwashing MachinesP2717Dishwashing Machines References applicable standards for integral air gaps “food waste disposer” replaces “food waste grinder.” One or two compartment sink Sections P2717.2 and P2717.3 regarding dishwasher

discharge to the sink tailpiece or the food waste disposer combined into a single Section P2717.2.

Discharge loop to underside of counter “fastened” or “held in place.”


2015 P2801 Water Heater Drain Valves and PansP2801 Water Heater Drain Valves and Pans Requires drain valves with

a threaded outlet Aluminum and plastic

pans of the prescribed thickness acceptable.

Pan drain is not required when a water heater is replaced and there is no existing drain.


2015

2018 IRC Update


Pho

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P2801.6 Plastic Pan for Gas-Fired Water Heaters

P2801.6 Plastic Pan for Gas-Fired Water Heaters

2018


P2804.6.1 Water Heater Relief Valve Discharge PipingP2804.6.1 Water Heater Relief Valve Discharge Piping The T&P relief valve

discharge pipe termination requires an air gap

PEX and PE-RT tubing: One size larger than the T&P

valve discharge outlet Outlet end fastened in place


2015

P2901, P2910 through P2913 Nonpotable Water SystemsP2901, P2910 through P2913 Nonpotable Water Systems Nonpotable water outlets

identified Purple identifies distribution

piping for nonpotable water New Sections P2910 through

P2913: Collection Storage Distribution


2015 P2902.5.4, P2904 Backflow Protection for Fire Sprinkler Systems

P2902.5.4, P2904 Backflow Protection for Fire Sprinkler Systems

2018


2018 IRC Update


P2903.5 Water Hammer ArrestorsP2903.5 Water Hammer Arrestors


2018 P2906.2 Lead Content of Drinking Water Pipe and FittingsP2906.2 Lead Content of Drinking Water Pipe and Fittings Water for drinking or

cooking Piping, fittings, joints: ≤0.25% lead content Federal law NSF 372

Other water supply piping: ≤8% lead content NSF 61


2015

P2906.6.1 Saddle Tap Fittings on Water Distribution PipingP2906.6.1 Saddle Tap Fittings on Water Distribution Piping


2018 P2906.18.2 Joints Between PVC and CPVC Water Piping

P2906.18.2 Joints Between PVC and CPVC Water Piping


2018

2018 IRC Update


P3003.2 Prohibited Joints (Single PVC to ABS fitting)P3003.2 Prohibited Joints (Single PVC to ABS fitting)

2018


P3003.9 Solvent Cementing of PVC JointsP3003.9 Solvent Cementing of PVC Joints Primer not required for: DWV PVC pipe and fittings ≤ 4-inch pipe size Non-pressure application


2015

P3005.1.6 Reduction in Pipe SizeP3005.1.6 Reduction in Pipe Size


2018 P3005.2 CleanoutsP3005.2 Cleanouts Section completely

reorganized Brass cleanout plugs only for

metallic piping Cleanout ≤ 1½ inches of

finished wall surface No longer required at base of

each waste or soil stack


2015

2018 IRC Update


P3008.1 Backwater ValvesP3008.1 Backwater Valves Existing buildings: Fixtures above next

upstream manhole cover: Allowed to discharge

through backwater valve


2015


2015

• Frost closure:• 3-inch pipe transition 12 in.

inside thermal envelope. • ≥ 7-foot height applies to roofs

for purposes similar to residential decks, patios and balconies.

P3103.1, P3103.2 Vent TerminalsP3103.1, P3103.2 Vent Terminals

P3103.1 Vent Pipe TerminationsP3103.1 Vent Pipe Terminations

2018


P3111 Combination Waste and Vent SystemP3111 Combination Waste and Vent System


2018

2018 IRC Update


P3114.8 Prohibited Installations for Air Admittance Valves

P3114.8 Prohibited Installations for Air Admittance Valves


2018 P3201.2 Trap Seal Protection Against EvaporationP3201.2 Trap Seal Protection Against Evaporation Trap seal protection

against evaporation can now be accomplished in a variety of ways, including trap seal primer valves supplied with nonpotable water and barrier-type trap seal protection devices


2015

ElectricalElectrical


E3703.5 Garage Branch CircuitsE3703.5 Garage Branch Circuits

2015 & 2018


2018 IRC Update


E3901.2 Wall Space for Receptacle DistributionE3901.2 Wall Space for Receptacle Distribution

2018


E3901.3 Appliances on 15 Amp Circuits

E3901.3 Appliances on 15 Amp Circuits


2018

E3901.9 Garage Receptacle Outlet LocationE3901.9 Garage Receptacle Outlet Location


2015 & 2018

E3902.4 GFCI Protection for Crawl Space Lighting Outlets

E3902.4 GFCI Protection for Crawl Space Lighting Outlets


2018

2018 IRC Update


E3902.8, E3902.9, E3902.10 Ground-Fault Circuit Interrupter Protection

E3902.8, E3902.9, E3902.10 Ground-Fault Circuit Interrupter Protection Laundry areas Receptacles within 6 feet

of bathtubs and showers Receptacles for

dishwashers


2015 E3905.2.1 Nonmetallic-Sheathed Cable and Metal Boxes

E3905.2.1 Nonmetallic-Sheathed Cable and Metal Boxes


2018

E4101.3 Cord- and-Plug-Connected AppliancesE4101.3 Cord- and-Plug-Connected Appliances

2018


Table E4101.3Table E4101.3


2018

2018 IRC Update


AppendicesAppendices

Appendix Chapters Q, R, S

Appendix Q Tiny HousesAppendix Q Tiny Houses


2018

Appendix R Light straw-clay construction

Appendix R Light straw-clay construction


2015 & 2018

Appendix S Strawbale constructionAppendix S Strawbale construction


2015 & 2018

2018 IRC Update



Discussion ActivityDiscussion Activity Final ReflectionFinal Reflection

This slide will help the learner to reflect on the day and what they will take back to the job and apply. What? What happened and what was observed

in the training? So what? What did you learn? What difference

did this training make? Now what? How will you do things differently

back on the job as a result of this training?


International Code Council is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credit earned on completion of this program will be reported to CES Records for AIA members. Certificates of Completion for non-AIA members are available on request.

This program is registered with the 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. Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.

Copyright Materials

This presentation is protected by US and International Copyright laws. Reproduction, distribution, display and use of the presentation without written permission of the speaker is

prohibited.

© International Code Council 2017

2018 IRC Update


Thank you for participatingThank you for participating

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Documents

2018 IRC Transition from 2012 sv2 01-04-2018 · International Residential Code ® (IRC®) Identify changes between the 2012 and 2018 IRC Apply code requirements to design, plan submittals