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Thread: Smoke detector Location

  1. #1

    Smoke detector Location

    I have a project in which we are installing smoke detectors in apartments that have a vaulted ceiling. My question is we now have them installed above the doorway for the room. This leaves alot of wall space above to the vault. My question is do they need to be all the way at the top on the vaulted ceiling. IF so is there an exception for access to turn off or difficulty in changing battery?

  2. #2
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    You can probably get the instruction from the manufacturer's website.
    Edward
    Education is a progressive discovery of our ignorance.

  3. #3
    Join Date
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    Local building/fire codes will dictate their locations. Placement is not an NEC issue.

  4. #4
    Join Date
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    Check out this post:

    http://forums.mikeholt.com/showthrea...514#post649514

    Also, the FAQ sticky thread here in the NEC forum has a similar post.

  5. #5
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    I believe they will need to be placed at the highest point in the ceiling within 6 or so inches from the peak.

  6. #6
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    The firex brochure I have states to install the smoke detector within 3' of the peak of a vaulted ceiling

  7. #7
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    Smoke alarms mounted above a door will not be effective until the smoke has built down to there level. This will reduce the effectiveness, sometimes greatly based on the slope of the ceiling. There is no exemption from placement due to ease of access to allow them to be placed lower.

  8. #8
    Join Date
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    The NEC only covers the wiring between the devices. The IRC/IBC and NFPA 72 mandates the placement and type of devices.
    "Electricity is really just organized lightning." George Carlin


    Derék

  9. #9
    Join Date
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    Within 3' of the highest point of the ceiling.
    Unlimited Electric Contractor/Standard Electric Inspector/Traffic Signal Inspector/Highway Lighting and Level One Traffic Signal Installer.

    I know you believe that you understand what you think I said but I'm sure you realize that what you heard is not what I meant.

  10. #10
    Join Date
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    Quote Originally Posted by Cavie View Post
    Within 3' of the highest point of the ceiling.
    So does that mean if the max height of the vaulted ceiling is less than three feet above the current location it is still acceptable?

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