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2009 International Residential Code Changes Coming Soon

17 years ago

Most US States will adopt the updated 2009 version of the International Residential Code soon.

This can be as soon as January 1, 2010.

Significant changes will occur for 1 and 2 family dwellings and townhouses constructed under the 2009 Code if it applies in your jursdiction.

Some are identified in the link provided below and can cause a significant increase in the cost of a new residential dwelling where the 2009 IRC is administered.

Although the link below is Pennsylvania specific, it is a fairly representative and helpful update for what will change anywhere the 2009 IRC will be in effect.

Highlights of Code changes are as follows:

BUILDING PLANNING:

1. CARBON MONOXIDE DETECTORS. Co detectors will be required in every dwelling that has either (A) and attached garage or (B)is heated using fossil fuels. CO detectors can be battery operated. The Code will also require that anytime a permit is needed for existing residential work, CO detectors will need to be installed.

2. HABITABLE 'ATTICS'. By redefining 'story-above-grade', the Code will recognize a new term. 'habitable attic'. This will create the potential for 5 levels of habitable space in any 1 or 2 family dwelling or townhouse. Under this change, a basement, 3 stories above grade, and and attic can be made into habitable space.

3. MEANS OF EGRESS. A clarification in the Code will extend the 'means of egress' from a structure to include any stairs, ramps, or other walkways to reach 'grade'.

BUILDING:

1. DECK LEDGER CONNECTIONS. For the first time, deck ledger connection, fasteners, and spacing will be indicated in the Code. The Code will also allow for alternate lateral load tensioning devices to be used in lieu of the prescriptive fastening tables.

2. WALL BRACING. The Code will increase in detail its requirement for wind and seismic wall bracing. The 2009 IRC will have 40 pages devoted exclusively to wall bracing compared to the 2006 IRC's 6 pages.

3. FOUNDATION CONSTRUCTION. Returns to the 2003 version of the IRC for foundation construction.

ENERGY:

1. PROGRAMMABLE THERMOSTATS. Programmable thermostats required in all new construction.

2. GAS POOL HEATERS. Gas pool heaters can no longer have a pilot light and must be on a timer.

3. POOL COVERS. Heated pools must have a pool cover to reduce evaporation. Pools heated to above 90F must have an insulated pool cover insulated to a minimum of R-12

4. LIGHT BULBS. At least 50% of all light bulbs installed in new homes must be energy efficient. (CFLs or similiar.)

5. INCREASE IN INSULATION THICKNESSES. There will be increases in insulation thicknesses from R-17 to R-20 in many locations, and a decrease from U.40 to U.35 for windows and doors.

6. BLOWER DOOR TEST. Energy compliance may include a 'blower door test' to assure that air leakage for the building is within prescribed limits.

MECHANICAL:

1. AIR DUCT LEAK TEST. Air ducts for HVAC will be required to have a 'leakage test'.

2. MAKEUP AIR FOR RANGE HOODS. Range hoods operating at 400 cubic feet per minute or more will be required to provide makeup air from the outside of the structure.

3. COMBUSTION AIR. Combustion air sections have been removed. Default is now "manufacturer's installation instruction".

ELECTRIC:

1. TAMPER-PROOF RECEPTACLES REQUIRED. ALL receptacles installed will be required to be 'tamper-proof'.

2. ARC FAULT CIRCUIT BREAKERS. EVERY circuit in habitable portions of the dwelling must be protected by a Combination Type Arc-Fault-Circuit-Interrupter. Previously, only BEDROOMS required such protection. Now, EVERY room in the house (except for closets, hallways and storage areas...and areas required to be Ground-Fault protected like garages, bathrooms, kitchens and basements) will require an AFCI at the panel.

3. INCREASED COVERAGE FOR GFCI. GFCI protection will increase to incluse ALL basement receptacles and ALL garage receptacles. EXCEPTION: Circuits protecting bruglar and fire alarms.

PLUMBING

1. FIRE SPRINKLERS. Last and certainly not least is the requirement that ALL townhouse constructed under the 2009 Code have fire sprinkler systems installed in compliance with NFPA13D after January 1, 2010. Single and Two-family dwellings will be required to have fire sprinkler systems beginning January 1, 2011.

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The information above is provide for guidance and may not be accurate for ALL US jurisdictions.

Check with your local Code Office for details.

Any errors in the above information are my own.

Hope you find the info helpful.

Here is a link that might be useful: Signifacnt Changes to IRC

Comments (9)

  • 17 years ago
    last modified: 11 years ago

    If your jurisdiction will adopt the 2009 IRC as soon as January of 2010, be reminded that plan submissions for new homes that are reviewed and approved prior to that date (or prior to the date your jurisdiction will adopt the 2009 IRC) will typically be approved to be built under the 2006 IRC or previous Code.

    Many builders in my region (especially townhouse builders) are doing just that:

    Getting their plans submitted, reviwed, and approved before the end of the year so they can avoid having to install fire sprinklers and add AFCI protected circuits....among other things.

    The fire sprinkler systems and AFCI circuit protection can easily add $10,000 to the cost of a modest sized house or townhouse under the new regulations.

    If these new regulations affect YOU, and you plan to build in 2010, check with your code office to see if you too can get your plans approved before the 2009 IRC becomes effective in your area.

    It could save you a TON of money.

  • 17 years ago
    last modified: 11 years ago

    Single and Two-family dwellings will be required to have fire sprinkler systems beginning January 1, 2011.

    Wow!

    Fire officials (and the sprinkler industry) have been pushing for this for years here in the Great White North. With the precedent set to the South, I can see it here soon too. Already, Ontario has mandated sprinklers for all multiple unit residential buildings over three storeys in height starting next year.

  • 17 years ago
    last modified: 11 years ago

    Wow also on the sprinkler requirement. I can't see that happening in most jurisdictions. IRC is just a recommendation. Our state has been debating the arc fault requirement since Jan - I mean it is in the paper weekly. Arc faults are considerably less cost than sprinklers but the builders are fighting it tooth and nail. Our new governor even has a position on it - I mean when does that happen with a code requirement?

    It is hard to imagine in the current economic climate (which I suspect will last for years) that such an onerous cost would be laid upon new home builders.

    The energy stuff is really modest and just starts bringing things up to where common sense would put them if long term costs were taken into account.

    I am pretty confused on the code issues - our state is up to date on the IRC. We permitted in 2009 (Feb) We already have tamper resistant outlets everywhere, GFCI in all basements/garage, and we have arc faults outside of bedrooms. I'm wondering if there was an update since 2006 or did we just adopt 2009 early. Now we don't have CO detectors.

  • 17 years ago
    last modified: 11 years ago

    The 2009 IRC references the 2008 National Electric Code.

    It is within the 2008 NEC that the requirements for AFCIs and tamper proof receptacles are found.

    The 2006 IRC is still referencing the 2005 version of the National Electric Code which is why these electrical updates will only appear in January for those that adopt the 2009 IRC.

    Some states only use the current version (2008) of the National Electric Code for residential wiring, which is why some states are already implementing tamper proof receptacles and AFCI breakers for all locations.

  • 17 years ago
    last modified: 11 years ago

    These new code additions will certainly be required at some point but in my very limited experience it is the rare jurisdiction that adopts the latest codes. Best to talk to the local building inspector and electrical inspector to determine what code versions are in effect and when/if they plan to adopt the latest versions.

    On the other hand, many jurisdictions have had stricter building codes that are only just now coming out in the IRC. For example, residential sprinkler systems have been required in new builds in certain counties in MD for at least 4-5 years now. And then you have preferences that are not code but are what the inspector(s) wants to see. Some elec inspectors in MD & NY now want to see 12 ga wiring for all 15A/20A ckts. You can fight it as a non-code rqmt, and even win, but you're asking for trouble. Illogically, my elec inspector wanted 12ga wiring (14ga OK for switch legs) but did not require AFCIs (as rqrd by NEC 2005). Go figure.

    One counter to david_cary's comment. The IRC, or any code, is a recommendation only until a jurisdiction adopts it. Basically, the only codes that matter are those specified by the local jurisdiction. And I believe compliance is stricter in urban vice rural areas.

    Just my two cents...

  • 17 years ago
    last modified: 11 years ago

    Our building dept adopted the 2003 code (I think) when we built. It said you had to have HVAC ducts sealed. We wanted ours sealed, but the inspector said they didn't check for that and our HVAC sub knew it, so DH had to do all of the duct sealing himself.

    Anne

  • 17 years ago
    last modified: 11 years ago

    Why would the building department have anything to do with your contract with the builder? Your HVAC specification should have required duct sealing (and not with duct tape).

  • 17 years ago
    last modified: 11 years ago

    The building dept didn't have anything to do with our contract since we were owner-builders. Our HVAC sub knew our bldg dept didn't inspect for the duct sealing, so he said they wouldn't do it.

    We didn't use duct tape; we used whatever the special tape is and whatever the goop is. I don't know the correct terminology--DH researched and bought all of this stuff.

    Anne

  • 17 years ago
    last modified: 11 years ago

    My point is that you could inspect the ducts yourself and enforce the contract if sealing was required in the design documents. Of course, it is never a good idea to just specify that the system must meet the building/energy code; the design should be specified in the contract. It's not the building department's responsibility to provide quality control for a project.