Significant Changes from the 2009 Significant Changes from the 2009 ICC to 2012 ICC codesICC to 2012 ICC codesIn the following order:IRCIRCIMCNECIPCIBCIPMC

2012 INTERNATIONAL 2012 INTERNATIONAL RESIDENTIAL CODERESIDENTIAL CODE

Stephen Adair and Phil Teeple

RESIDENTIAL CODERESIDENTIAL CODE

2-hour Common wall unless structures are Sprinklered

R302.2.2 Parapets (Townhouses)R302.2.2 Parapets (Townhouses)

Language was added to the section to clarify that NO penetrations are allowed in the four (4) foot area of Fire Rated Sheathing when using a 2-hour rated wall Sheathing when using a 2-hour rated wall to the roofing materials in lieu of the parapet for townhouses. (It should also be noted that continuous ridge venting across this area is also a violation of the section)

R302.5R302.5Dwelling/Garage opening/penetration protectionDwelling/Garage opening/penetration protection

R302.5.1 Opening protection Section calls for self-closing doors between garage and dwelling units. This language has been deleted by addendum. (20 minute or 1 solid door still required)

R302.5.2 Duct Penetrations (garage) R302.5.2 Duct Penetrations (garage) Duct penetrations between the garage and dwelling unit should be made only with No. 26 gauge sheet steel and all annular space shall be sealed to sufficiently prevent air transfer. No opening in such ducts allowed within garage

5/8 sheetrock required on walls separating garage from dwelling (by Addendum). All penetrations to be sealed to prevent transfer of air.

R303.4 Mechanical VentilationR303.4 Mechanical Ventilation

Whole house mechanical ventilation is required when tested by blower door test if air changes per hour do not exceed/meet parameters set forth by exceed/meet parameters set forth by Section M1507.3

Details will be discussed in the mechanical section.

R308.4.5 Glazing and Wet SurfacesR308.4.5 Glazing and Wet Surfaces

A new section has been added to the section concerning glazing in bathrooms.

R311.7.5 Stair treads and risersR311.7.5 Stair treads and risers

Minimum tread depth is 10 measured from nosing to nosing.

Maximum riser height is 7 7/8 by addendum. addendum.

Exception by Addendum. Closed risers are not required on exterior stairs where the riser is less than 10 above grade. (deck stairs)

Maximum riser height:

7 7/8 by addendum

Solid risers not required on required on exterior (Deck) stairs less than 10 in height by addendum

R314.5 Interconnection (Smoke and R314.5 Interconnection (Smoke and CO alarms)CO alarms)

This section now allows smoke and CO detectors to be interconnected via wireless technology in lieu of hard wired interconnection. Smoke alarms still must interconnection. Smoke alarms still must be powered by the buildings wiring with a battery back-up provided.

R312 Guards and window fall R312 Guards and window fall protectionprotection

R312.1.1 Where required:

Add addendum to language providing exception: Grassed or landscaped areas a minimum of 3 wide behind retaining walls shall not be deemed a walking surface. shall not be deemed a walking surface.

This addendum prevents retaining walls at residential structures from requiring a guard unless a paved area is closer than 3 to the edge creating a walking surface.

R312 Guards and Window fall R312 Guards and Window fall protectionprotection

R312.2 Window fall protection

This section has been deleted in its entirety by addendum

Can be retrofitted by home owner (same as Can be retrofitted by home owner (same as childproofing house)

R405.1 Foundation DrainageR405.1 Foundation Drainage

R501.3 Fire protection of floorsR501.3 Fire protection of floors

R501.3 Fire protection of floors (cont.)R501.3 Fire protection of floors (cont.)

Installation of 1/2 gypsum board or other approved membranes is now required on the underside of floor assemblies of structures using manufactured joist in construction or dimensional wood 2x8 or construction or dimensional wood 2x8 or smaller

This change will require that the manufactured joist in unfinished basements to be protected for Fire personnel safety. See all exceptions and provisions

R802.11 Uplift ResistanceR802.11 Uplift Resistance

Ceiling joist and rafter connections must comply with table R802.11 or accepted engineering practice.

There are many parameters involved in There are many parameters involved in determining this.

Rafter/joist o.c. spacing, roof pitch, roof span, basic wind speed and exposure level.

R903.2.1 Roof FlashingR903.2.1 Roof Flashing

Kick out flashing now required.

R905.2.8.3 Sidewall FlashingR905.2.8.3 Sidewall Flashing

R905.2.8.5 Roof Drip EdgeR905.2.8.5 Roof Drip Edge

Roof drip edge is now required expressly in the code although common practice and required by most installation instructions. This product is manufactured in various This product is manufactured in various configurations, but all serve to direct water away from the face trim at the roof line.

Nails attaching such material shall be placed no more than 12 o.c. along the perimeter and all nailing locations shall be covered with the underlayment

Chapter 11 Energy EfficiencyChapter 11 Energy Efficiency

Adopted administrative provisions: Reroofs where sheathing is exposed will require attics to be insulated

Columbia is Zone 4

Slab homes require 24 of R-10 insulation. If Slab homes require 24 of R-10 insulation. If placed on exterior, install termite shield.

Walls R-20 (2x6 walls or 2x4 with spray foam) or R-13 + 5 (2x4 walls with R-board)

Ceilings R-49. Must install insulation markers.

Energy Efficiency (contd)Energy Efficiency (contd)

Duct sealing is mandatory.

Attic supply ducts require R-8, all other ducts outside thermal envelope R-6

Duct test can be performed separately or Duct test can be performed separately or in conjunction with blower door test

Blower door test mandatory. Must be less than 3 ACH @ 50 Pa

Table N1102.4.1.1 addresses 16 locations for air barrier and insulation installation

Energy Efficiency (contd)Energy Efficiency (contd)

Hot water piping must be insulated per N1103.4.2

Provide Manual S or Manual J calculations (attach to furnace). Code no longer (attach to furnace). Code no longer allows you to oversize your condenser/heat pump

75% of lamps shall be high efficiency

Fireplaces shall have gasketed doors

2012 INTERNATIONAL 2012 INTERNATIONAL MECHANICAL CODEMECHANICAL CODE

Dan VandeVoorde

MECHANICAL CODEMECHANICAL CODE

FRESH AIR INTAKEFRESH AIR INTAKER303.4 MECHANICAL VENTILATIONThe dwelling unit SHALL be provided with whole-house mechanical ventilation in accordance with SECTION M1507.3 Alternatively an insulated duct from the outside connected to the return air or HVAC unit AHEAD of the filter with a balancing damper may be provided.the filter with a balancing damper may be provided.

The duct SHALL be a 4 diameter for areas 1,500 S.F. or less.

6 diameter for areas over 1,500 S.F and less than or equal to 2,400 S.F.

8 diameter for areas over 2,400 S.F

Example of how the fresh air ventilation should be done

Gas line sediment trap lengthGas line sediment trap lengthG2419.4 Sediment trap

Change any length to 3 minimum length

NO GALVANIZED PIPE! TEE MUST CHANGE DIRECTION OF GAS FLOW!

Building cavities used as return Building cavities used as return plenumsplenumsN1103.2.3 (R403.2.3) Building cavities (Mandatory).

Building framing cavities shall not be used as ducts or plenums

You have to DUCT the return.

Programmable thermostatProgrammable thermostat

N1103.1.1 Programmable thermostat. The thermostat should initially be programmed with a temperature set point no higher than 70F and a cooling temperature set point no lower than 78Ftemperature set point no lower than 78F

Locking access port capsLocking access port capsM1411.6 Locking access port caps.

Refrigerant circuit access ports located outdoors shall be fitted with locking-type tamper-resistant caps

or shall be otherwise secured to or shall be otherwise secured to prevent unauthorized access

If the caps are behind the cover, on a roof or behind a locked fence then they are not required.

PVC venting for water heaters and PVC venting for water heaters and furnaces.furnaces. IFGC 503.4.1.1

Plastic vent joints.

Plastic pipe and fittings used to vent appliances shall be installed in accordance appliances shall be installed in accordance with the appliance manufacturers installation instructions.Where a primer is required, it shall be of a contrasting color. Only PURPLE is acceptable. No clear primer.

Side note: use primer on condensate piping if concealed

Required on both intake and exhaust pipes

BB--Vent piping for appliancesVent piping for appliances

(503.7.5 & 503.10.2.2 IFGC)No single wall pipe in unconditioned spaces.

(503.10.2.3 IFGC)All single wall pipe must be .0018 thick (26 ga). That includes the connector.

BB--vent connectorsvent connectors

(504.3.2 IFGC) Connector lengths. The maximum vent connector length horizontal length shall be 1 feet for each inch of connector diameter. ( 4 = each inch of connector diameter. ( 4 = 6) * there is an exception for longer lengths (504.3.3), a reduction in capacity takes place and you will be required to show the math on it*

Common BCommon B--vent codesvent codes

(503.6.9.2 IFGC) Anything less than a 45angle is horizontal. On a single draft hood appliance the total horizontal length of vent AND connector cannot be more than 75% of total height.

On a fan assisted appliance (furnace) the On a fan assisted appliance (furnace) the horizontal length needs to be within the sizing vent tables in (504.2(1) IFGC)

(504.3.5 IFGC) The common vent offset for multiple appliances is the same as connectors, horizontal length shall be 1 feet for each inch of common vent diameter.

Improper venting of appliances lead to life safety issues down the road!

2011 NATIONAL 2011 NATIONAL ELECTRICAL CODEELECTRICAL CODE

Curtis Lichty

ELECTRICAL CODEELECTRICAL CODE

NEC 110.24 Available Fault NEC 110.24 Available Fault CurrentCurrent In other than dwelling units, service equipment shall be legibly and durably marked in the field with the maximum available fault current.

The date at which the fault-current The date at which the fault-current calculation was performed shall be included.

NEC 210.8 GFCI Protection for NEC 210.8 GFCI Protection for PersonnelPersonnel

GFCIs shall be installed in a readily accessiblelocation. Exception: GFCI-protected receptacleslocated in exterior soffit areas and installed forholiday lighting.

In dwelling units, GFCI-protection for 120-voltreceptacles is required where located within sixfeet of any sink, not just kitchen or laundry sink.feet of any sink, not just kitchen or laundry sink.--Important at multi-family kitchenettes, break-rooms,etc.

In other than dwelling units, GFCI-protection isrequired for all 120-volt receptacles in thefollowing locations: indoor wet locations, lockerrooms with showering facilities, garages andservice bays utilizing portable equipment.

NEC 210.12.(A) NEC 210.12.(A) -- AFCIAFCI

AFCI protection is not required in buildings that are regulated by the International Residential Code (one and two-family dwellings)two-family dwellings)

NEC 210.52(E)(3) Dwelling Unit NEC 210.52(E)(3) Dwelling Unit Receptacle Outlets at Balconies, Receptacle Outlets at Balconies, Decks, and PorchesDecks, and Porches

A receptacle outlet is required at all balconies, decks, and porches that are accessible from inside of a dwelling unit, accessible from inside of a dwelling unit, regardless of square footage.

Added exception to not require at an existing structure, e.g. reframing or enlarging a deck.

NEC 210.52(I) Dwelling Unit NEC 210.52(I) Dwelling Unit Receptacle Outlet, FoyersReceptacle Outlet, Foyers Foyers greater than 60 square feet are required to have receptacles located in each wall space 3-feet or more in width.

NEC 220.10(J) BranchNEC 220.10(J) Branch--Circuit Load Circuit Load Calculations for Dwelling Calculations for Dwelling OccupanciesOccupancies

(1) In one and two-family dwellings, a 15-ampere rated general-purpose circuit shall be limited to a maximum of 8 receptacle outlets or openings or 8 lighting outlets.

(2) In one-and two-family dwellings, a 20-ampere rated general-purpose circuit shall be limited to a maximum of 10 receptacle outlets or openings or 10 lighting outlets.or openings or 10 lighting outlets.

(3) In one-and two-family dwellings, the small appliance circuits that serve kitchen countertops shall be limited to not more than two receptacle openings per circuit for the first two circuits serving the countertop; the third and all succeeding small appliance circuits shall be limited to not more than three receptacle openings per circuit.

(4) In one- and two-family dwellings, the microwave receptacle outlet shall be an individual, dedicated circuit rated at 20-amperes, and shall share with no other outlets.

NEC 225.27 Raceway Seal NEC 225.27 Raceway Seal

Just as with service raceways, feeder and branch-circuit underground raceways entering a building from outside must be sealed, to prevent unwanted sealed, to prevent unwanted environmental air, vapor, or moisture. Spare or unused raceways shall also be sealed.

NEC 250.30 Grounding Separately NEC 250.30 Grounding Separately Derived ADerived A--C Systems, Outdoors SourceC Systems, Outdoors Source

Separately derived systems, such as back-up generators, that are located outside the building supplied, must have a grounding electrode connection at the grounding electrode connection at the system source location. In other words, the neutral of a separately derived system must be earthed by a nearby grounding electrode.

NEC 250.92 (B) Method of Bonding NEC 250.92 (B) Method of Bonding at the Serviceat the Service Bonding jumpers, where required for electrical continuity of raceways containing service conductors, shall be used at reducing washersused at reducing washers

NEC 312.8 Cabinets. Switch and NEC 312.8 Cabinets. Switch and OverOver--current Device Enclosures current Device Enclosures with Feedwith Feed--Through ConductorsThrough Conductors

A warning label that identifies the location of the disconnecting means for any feed-through conductors shall be attached to through conductors shall be attached to the enclosure.

NEC 408.4 Field Identification NEC 408.4 Field Identification Required. (B) Source of Supply.Required. (B) Source of Supply. In other than one- and two-family dwellings, all switchboards and panelboards supplied by a feeder shall be marked to indicate the device or marked to indicate the device or equipment where the power supply originates.

NEC 680.26 Swimming Pools. NEC 680.26 Swimming Pools. EquipotentialEquipotentialBonding (B)(7) Fixed Metal PartsBonding (B)(7) Fixed Metal Parts

All fixed metal part within 5 feet horizontally and 12 vertically of permanently installed pools must be bonded to the equipotential bonding grid. bonded to the equipotential bonding grid. This includes metal sheathed cables and raceways, metal piping, metal awnings, metal fences and metal door and window frames.

NEC 680.73 Pools and Tubs for NEC 680.73 Pools and Tubs for Therapeutic Use. AccessibilityTherapeutic Use. Accessibility A receptacle for a cord-and plug-connected jetted bathtub, located under the tub, must be installed so that the receptacle face is within direct view from receptacle face is within direct view from the access opening and located not more than 1 foot from the opening.

NEC existing requirements to be NEC existing requirements to be enforcedenforced Bundling non-metallic sheathed cable for longer than 24-

inches.

Bundles of cables in a single large romex connectors, e.g., 18 to 20 cables in a 2-inch cable clamp.

Nail-guards are required if:

Edge of drilled hole is within 1 of edge of framing

Cable run parallel to framing member is within 1 -inch Cable run parallel to framing member is within 1 -inch of framing edge, e.g., multiple cables run to a multi-gang switch box. Cables must be supported inside the 1-inch center of a 3 inch wide stud.

10 or more current-carrying conductors (e.g., five 14-2 cables) passing through a caulked hole must each have their ampacity adjusted to 50 percent or less of their table ampacity (NEC 310.16).

NEC existing requirements to be NEC existing requirements to be enforced (contd)enforced (contd) NEC 408.4 (A) Circuit Directory or Circuit Identification.

Every circuit shall be legibly identified to clearly indicate its specific purpose, with sufficient detail to clearly distinguish it from all others.

All raceways, including service raceways, exposed to varying temperatures must be sealed, to prevent the circulation of warm air to a colder section of the raceway.warm air to a colder section of the raceway.

Lumber behind panels mounted to concrete (in a basement) must be pressure treated wood.

Associated electrical equipment, troughs, large j-box, etc., is not permitted to extend more than 6-inches into work clearance space.

For other than 1- and 2-family dwellings, there must be a concrete-encased electrode (sometimes called a Ufer ground) located near the bottom of the footing.

2012 2012 IRCIRC (ONE AND TWO (ONE AND TWO

FAMILY DWELLING) FAMILY DWELLING)

Daryl Brown

FAMILY DWELLING) FAMILY DWELLING)

PLUMBINGPLUMBING CODECODE

P2603.4 P2603.4 --Pipes through foundation wallPipes through foundation wall

A pipe that passes through a foundation wall shall be provided with a relieving arch, or a pipe sleeve shall be built into the foundation wall. The pipe shall be two pipe sizes greater than the pipe passing pipe sizes greater than the pipe passing through the wall.

Alternatively, the sleeve may be sized in accordance with a sealing system manufacturers published recommendations.

P2905.9.1.3 P2905.9.1.3 -- PVC Plastic PipePVC Plastic Pipe

A purple primer that conforms to ASTM F 656 shall be applied to PVC solvent-cemented joints. Solvent cement for PVC plastic pipe conforming to ASTM D 2564 shall be applied to all joint surfaces.

Amendment shall read as follows: Amendment shall read as follows: A primer that conforms to ASTM F 656 shall be applied to PVC solvent-cemented joints. Purple primer SHALL be used below grade.

Solvent cement for PVC plastic pipe conforming to ASTM D 2564 shall be applied to all joint surfaces. If purple primer is used, section P2503 inspections and tests shall not be required.

P3008.1 P3008.1 -- Sewage BackflowSewage Backflow

If flood rim of fixtures are below the upstream manhole rim elevation, a backwater valve is required

Code has been amended to not require Code has been amended to not require the fixtures with flood rims above the upstream manhole be separated.

2012 INTERNATIONAL 2012 INTERNATIONAL BUILDING CODEBUILDING CODE

Phil Teeple and Nadine Davis

BUILDING CODEBUILDING CODE

105.2 105.2 Fences exempt from Fences exempt from permitspermits Raises the height of fences that are exempt from permits from 6 to 7.

Allows for variations in grade

303.3, 306.2 303.3, 306.2 Occupancy Occupancy classification of commercial kitchensclassification of commercial kitchens More clearly states that kitchens associated with restaurants are classified as A-2.

Kitchens not associated with dining areas Kitchens not associated with dining areas are considered F-1.

308.2, 202 308.2, 202 Definitions of care Definitions of care facilitiesfacilities Added definitions for 24 hour care, custodial care, incapable of self preservation, and medical care.

Requirements for group I occupancies can Requirements for group I occupancies can vary significantly based on type of use involved.

310.6 310.6 Group RGroup R--4 Occupancies4 Occupancies

Group R-4 occupancies (group homes, rehab facilities) with between five and 16 occupants are regulated by the IBC, not IRC.IRC.

424 424 Childrens Play StructuresChildrens Play Structures

Previously these were only regulated if in malls. Now any childrens play structure over 10 feet high and over 150 square feet must meet IBC requirements.must meet IBC requirements.

509 509 Incidental UsesIncidental Uses

Clarifies difference between incidental uses and mixed uses

Clearly requires fire sprinkler system, before it said fire-extinguishing systembefore it said fire-extinguishing system

Removes fire pump rooms

703.7 Identification of fire and 703.7 Identification of fire and smoke separation wallssmoke separation walls Lettering must be 3 high and 3/8 thick

Located within 15 of each end of each end of wall and at intervals of 30

712 Vertical openings712 Vertical openings

Changes shaft enclosure to vertical openings

Shafts are one way of protecting vertical openingsopenings

903.2.4 903.2.4 Furniture Storage and Furniture Storage and Display Display In groups F-1, M, and S-1 occupancies, automatic sprinklers are required where upholstered furniture or mattresses are manufactured, stored, or displayedmanufactured, stored, or displayed

2,500 SF for groups F-1 and S-1

5,000 SF for group M

903.2.11.1.3 Basements903.2.11.1.3 Basements

In any basement where walls, partitions or other obstructions are installed that restrict the hose streams, the basement must be sprinklered.must be sprinklered.

906.1 Portable fire extinguishers906.1 Portable fire extinguishers

In group R-2 occupancies, if portable fire extinguishers are provided in the dwelling unit they are not required in common areasareas

907.2.3 EV/ACS required in Group 907.2.3 EV/ACS required in Group E occupanciesE occupancies Now requires Emergency Voice / Alarm Communication System based on occupancy.

BCCC amended code so that occupant BCCC amended code so that occupant loads 75 and under do not require EV/ACS (30 is stated in the code).

908.7 Carbon Monoxide Alarms908.7 Carbon Monoxide Alarms

Carbon monoxide alarms are now required in group R and I occupancies when there is a fuel burning appliance or attached garageattached garage

This makes the IBC and IRC conform

1013.1 1013.1 Guards at Operable Guards at Operable WindowsWindows For windows with a sill height over 72 above grade, a guard is required if the sill height is less than 36 above finished floor.floor.

Several exceptions, such as sash limiters.

1109.2, 1109.5 1109.2, 1109.5 Accessible Accessible Childrens FacilitiesChildrens Facilities Where toilet facilities are primarily for children, the toilet, lavatory, etc. can be mounted at heights for children.

1203.2 1203.2 Ventilation of Attic SpacesVentilation of Attic Spaces

The net free ventilating area has doubled to 1/150th of the area of the space ventilated.

Can be reduced by installing vapor Can be reduced by installing vapor barriers.

1403.5 1403.5 Flame Propagation at Flame Propagation at Exterior WallsExterior Walls For Type I, II, III or IV construction greater than 40 in height, the water-resistive barrier must comply with NFPA 285.

1609 1609 Determination of Wind Determination of Wind LoadsLoads Wind loads are now given as ultimate wind loads with reductions to convert to nominal design wind speeds.

Not a significant change for Category II Not a significant change for Category II buildings

Could be significant for Category III and IV buildings

1704.3 Statement of Special 1704.3 Statement of Special InspectionsInspections Section has been reorganized and clarified.

City requires a final statement of special inspections (letter of conformance) from inspections (letter of conformance) from testing agencies identifying which items they inspected and that all deviations were corrected.

2902.2 2902.2 Single User Toilet FacilitiesSingle User Toilet Facilities

Where separate gender toilet facilities are required and only one water closet is required, they may be signed as family/assisted-use and do not have family/assisted-use and do not have identified by specific gender.

Retaining WallsRetaining Walls

City previously had amendment regarding retaining walls. Amendment has been deleted as code adequately covers design and construction requirements.and construction requirements.

Any wall over 4 in height (from top of wall to bottom of footing) must be engineered and inspected.

Commercial Energy EfficiencyCommercial Energy Efficiency

Kept 2009 IECC and City amendments

2012 INTERNATIONAL 2012 INTERNATIONAL PROPERTY PROPERTY

Phil Teeple

PROPERTY PROPERTY MAINTENANCE CODEMAINTENANCE CODE

Changes to the International Changes to the International Property Maintenance CodeProperty Maintenance Code 304.15 Doors adds that operator systems, if provided shall be maintained in good condition 304.19 Gates: All exterior gates shall be maintained in good condition. 404.4.1 Room area The changes require 404.4.1 Room area The changes require bedrooms to be 70 sq. ft. for each occupant and for bedrooms with two or more occupants bedrooms shall be 50 sq. ft. for each occupant thereof. 404.5 Overcrowding: The code adds specificity to the minimum square footage for living rooms and dining rooms and these areas shall not be included as a sleeping area.

Changes to the International Changes to the International Property Maintenance CodeProperty Maintenance Code

404.6 Efficiency Units The changes are less restrictive than previously adopted. Specifies that a unit occupied by not more than one occupant shall have a minimum floor area of 120 square feet. 602.2 Residential Occupancies added that cooking 602.2 Residential Occupancies added that cooking appliances and unvented fuel-burning space heaters shall not be used for required heating. 605.2 Receptacles requires an appropriate face plate. 605.3 Luminaires Pool and spa luminaires over 15 V shall have ground fault circuit interrupter protection. 605.4 Wiring Flexible cords shall not be used for permanent wiring.

Changes to local amendments to Changes to local amendments to the IPMC:the IPMC: 304.18.1 This amendment exempts fully enclosed attached garages from having a deadbolt into the dwelling unit. If this requirement changes for new construction a requirement changes for new construction a change be considered for property maintenance.

Changes to local amendments to Changes to local amendments to the IPMC:the IPMC: 702.4.1 Requires basement sleeping rooms to have one openable window or exterior door or not less than two approved independent exits. Exception 2, c should be amended as follows: c. 2, c should be amended as follows: c. All smoke detectors, if such exist, shall be interconnected such that the actuation of one alarm will actuate all the alarms throughout the structure. in the shafts and corridors.