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Thread: 2009 IRC Smokes and Carbon Monoxide Alarms Requiements

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    Moderator Mule's Avatar
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    2009 IRC Smokes and Carbon Monoxide Alarms Requiements

    The 2009 IRC states:
    R314.3.1 Alterations, repairs and additions. When alterations,
    repairs or additions requiring a permit occur, or when
    one or more sleeping rooms are added or created in existing
    dwellings, the individual dwelling unit shall be equipped with
    smoke alarms located as required for new dwellings.

    Exceptions:
    1. Work involving the exterior surfaces of dwellings,
    such as the replacement of roofing or siding, or the
    addition or replacement of windows or doors, or the
    addition of a porch or deck, are exempt from the
    requirements of this section.

    2. Installation, alteration or repairs of plumbing or
    mechanical systems are exempt from the requirements
    of this section.


    The requirement of a permit kicks in the requirement of CM alarms if the existing structure has an attached garage OR has fuel fired appliances and SD's.

    SO this small addition of a sun room that started out with just one circuit for lights and outlets now requires installation of hardwired SD's to current code, one inside every bedroom and centrally located outside of the bedrooms, PLUS CM alarms in the vicinity of the bedrooms.

    Now the question. On exception 1 would you require SD per the code AND CM alarms when a Sun Room is being constructed?

    We are saying yes....It is an enclosed addition with windows and doors.
    Mule
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    Sawhorse mtlogcabin's Avatar
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    Now the question. On exception 1 would you require SD per the code AND CM alarms when a Sun Room is being constructed?

    We are saying yes....It is an enclosed addition with windows and doors.
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    Administrator RJJ's Avatar
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    YA! YA! I agree.

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    so do i, but the fruit and nut state deleted that exception.

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    Sawhorse rktect 1's Avatar
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    It was worse in the 2006 codes.

    But yes, a sunroom (addition) would and has had me tell homeowners to upgrade the entire house.
    Less is only more where more is no good. - FLW

    Currently using 2006 ICC code cycle.

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    Smoke alarms located as required for new dwellings
    There is nothing about CM detectors.

    And there is nothing about the installation being per the requirements of new construction.

    Battery operated smoke detectors can be placed at the required locations and meet the letter of the code.

    But I can understand how actually reading the code is not as much fun as jumping to conclusions and making homeowners dance for one's amusement.

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    Moderator Mule's Avatar
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    Quote Originally Posted by brudgers View Post
    There is nothing about CM detectors.

    And there is nothing about the installation being per the requirements of new construction.

    Battery operated smoke detectors can be placed at the required locations and meet the letter of the code.

    But I can understand how actually reading the code is not as much fun as jumping to conclusions and making homeowners dance for one's amusement.
    The only way you can use battery operated smokes is if you have to tear into a wall to provide interlocking of the smokes. If there is an attic or basement then they must be hardwired.

    R314.4 Power source. Smoke alarms shall receive their primary
    power from the building wiring when such wiring is
    served from a commercial source, and when primary power is
    interrupted, shall receive power from a battery.Wiring shall be
    permanent and without a disconnecting switch other than those
    required for overcurrent protection. Smoke alarms shall be
    interconnected.
    Exceptions:
    1. Smoke alarms shall be permitted to be battery operated
    when installed in buildings without commercial
    power.
    2. Interconnection and hard-wiring of smoke alarms in
    existing areas shall not be required where the alterations
    or repairs do not result in the removal of interior
    wall or ceiling finishes exposing the structure,
    unless there is an attic, crawl space or basement available
    which could provide access for hard wiring and
    interconnection without the removal of interior finishes.


    and yes there are requirements for CM's.
    R315.2 Where required in existing dwellings. Where work
    requiring a permit occurs in existing dwellings that have
    attached garages or in existing dwellings within which
    fuel-fired appliances exist, carbon monoxide alarms shall be
    provided in accordance with Section R315.1.
    Mule
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    Sawhorse rktect 1's Avatar
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    That isn't what my 2006 building code shows. Battery operated only works if no commercial power.

    And the state requires the CM detector.
    Less is only more where more is no good. - FLW

    Currently using 2006 ICC code cycle.

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    From R313.3 Smoke alarms shall be permitted to be battery operated when installed in buildings without commercial power or in buildings that undergo alterations repairs or additions regulated by Section R313.2.1.


    Last edited by brudgers; March 8th, 2011 at 21:57.

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    R313.2.1 Design and installation. Automatic residential fire sprinkler systems shall be designed and installed in accordance with Section P2904 or NFPA 13D.
    "I'll show that darned Code Official! Thinks he can make ME put in hard-wired smoke detectors, does he? I'll just put in a sprinkler system instead! That'll show HIM a thing or two." Good call Ben! LOL

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    Come back to the issue.

    Requiring hardwired smoke alarms when someone screens in a porch is asinine.

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    Sawhorse Francis Vineyard's Avatar
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    Quote Originally Posted by brudgers View Post
    Come back to the issue.

    Requiring hardwired smoke alarms when someone screens in a porch is asinine.
    Agreed, "or the addition of windows . . . or the addition of a porch"; sprinklers required on alterations, repairs and additions might be next.
    Last edited by Francis Vineyard; March 9th, 2011 at 06:04. Reason: still confused
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    We kinda follow Brudgers approach...(with a little less drama) new habitable space, 3-season, living type space...yes,...decks and unenclosed porches no...interior remodel, yes...CT pushes the locations....but not the hardwiring (fishing of wiring) if it would be a large expense compared to the job cost....
    Please support Jim Brown, Deputy Building Official from Gillette, Wyoming for ICC Board of Directors.
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    Sawhorse rktect 1's Avatar
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    Quote Originally Posted by brudgers View Post
    From R313.3 Smoke alarms shall be permitted to be battery operated when installed in buildings without commercial power or in buildings that undergo alterations repairs or additions regulated by Section R313.2.1.


    EXACTLY. So now go read R313.2.1 and in this section, where you can not get access into the crawl or attic, in those places required to have smoke detectors, you can put in battery operated smoke detectors.
    Less is only more where more is no good. - FLW

    Currently using 2006 ICC code cycle.

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    Sawhorse rktect 1's Avatar
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    Quote Originally Posted by brudgers View Post
    Come back to the issue.

    Requiring hardwired smoke alarms when someone screens in a porch is asinine.
    I agree. And when this village amends this section of the code, or ICC changes its mind, I will follow it to the letter. Until then, I enforce this code section, as it is written.
    Less is only more where more is no good. - FLW

    Currently using 2006 ICC code cycle.

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    Moderator Mule's Avatar
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    Quote Originally Posted by brudgers View Post
    Come back to the issue.

    Requiring hardwired smoke alarms when someone screens in a porch is asinine.
    I agree. However in my opinion by screening in a porch that would not initiate the requirements. See Exception 1 of R314.3.1.

    Now if you make that porch a room then yes you would need to meet the requirements of the 2009 IRC. You have to look at emergency egress (enclosure blocking bedroom egress windows), electrical and other life health safety issues. And of course....is the addition "GREEN"?
    Mule
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    Sawhorse Yankee's Avatar
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    Quote Originally Posted by rktect 1 View Post
    EXACTLY. So now go read R313.2.1 and in this section, where you can not get access into the crawl or attic, in those places required to have smoke detectors, you can put in battery operated smoke detectors.
    You can snake building power off of an existing circuit in the bedroom up to 4" below ceiling without disrupting the finish material, so your alarm will be hardwired. Then you can use wireless technology for the "interconnected" part. The "interconnected" is the difficulty with wiring the units together in a renovation without attic space.

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    Sawhorse
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    stupid requirement, maybe... Code.. well.. yes.

    The only place you may be able to wiggle out of hardwired smoke detectors is the main level of a house (which is probably where the kitchen is)..

    Don't know about you.. with the way I cook... that's the most likely place for a fire/smoldering issues to occur (just did hydro inspection at a senior living facility - the resident of one unit was no where to be found.. but something was cooking on the stove). Contractor turned the stove off.. just sayin'
    (PE)ach
    some days are just that..

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    stupid ,stupid, stupid! permit for $1,200 worth the roof covering damage and i informed the roofer of the co and smoke alarm requirement. lots of insults and expletives later i told him to write his legislatures and i'm only serving him up the plate of $hit i was handed. sucks to be me sometimes! thanks icc and california building standards commission

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    Sawhorse Francis Vineyard's Avatar
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    Quote Originally Posted by pwood View Post
    told him to write his legislatures
    Good Advice, Virginia deleted Sections R314.3.1 & R315.2.
    Last edited by Francis Vineyard; March 10th, 2011 at 17:35. Reason: change font
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