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  1. #1
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    Default Door from residence to garage

    For some reason I thougt the garage separation door had to be fully weather stripped; smoke seal, shoe, sill etc...? I cant find anywhere that supports this in the IRC or CRC.

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  2. #2
    Jim Hime's Avatar
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    Default Re: Door from residence to garage

    Quote Originally Posted by Marc M View Post
    For some reason I thougt the garage separation door had to be fully weather stripped; smoke seal, shoe, sill etc...? I cant find anywhere that supports this in the IRC or CRC.

    IRC R309.1 may help.

    The intent is a 20 minute fire rated door between the attached garage and living area.


  3. #3
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    Default Re: Door from residence to garage

    Quote Originally Posted by Marc M View Post
    For some reason I thougt the garage separation door had to be fully weather stripped;
    Quote Originally Posted by Jim Hime View Post
    The intent is a 20 minute fire rated door between the attached garage and living area.
    Jim,

    That is not really the intent, if it was, then a 20 minute door would be required and a 20 minute door is simply one of the options, an option which would more than meet the requirements for that door to the 'outside' and to the garage.

    Marc,

    The garage is outside the thermal envelope of the house, the door to the garage needs to be weatherstripped just like the main entry does and all other doors from the house interior to the 'outside', which includes the garage, which is 'outside' the thermal envelope.

    Jerry Peck
    Construction/Litigation/Code Consultant - Retired
    www.AskCodeMan.com

  4. #4
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    Default Re: Door from residence to garage

    Makes sense...thanks.


  5. #5
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    Default Re: Door from residence to garage

    marc,
    the requirement can be found in the california energy code.


  6. #6
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    Default Re: Door from residence to garage

    Quote Originally Posted by brian schmitt View Post
    marc,
    the requirement can be found in the california energy code.
    Sweet...you have a copy of that handy?


  7. #7
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    Default Re: Door from residence to garage

    Quote Originally Posted by Marc M View Post
    For some reason I thougt the garage separation door had to be fully weather stripped; smoke seal, shoe, sill etc...? I cant find anywhere that supports this in the IRC or CRC.
    Quote Originally Posted by brian schmitt View Post
    marc,
    the requirement can be found in the california energy code.
    Brian,

    The California energy code says it must be smoke sealed too? Please do provide that code reference, that would make an interesting read ...

    Or are you just referring to the door being weatherstripped?

    Jerry Peck
    Construction/Litigation/Code Consultant - Retired
    www.AskCodeMan.com

  8. #8
    Join Date
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    state of jefferson
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    522

    Default Re: Door from residence to garage

    Quote Originally Posted by Marc M View Post
    Sweet...you have a copy of that handy?
    Quote Originally Posted by Jerry Peck View Post
    Brian,

    The California energy code says it must be smoke sealed too? Please do provide that code reference, that would make an interesting read ...

    Or are you just referring to the door being weatherstripped?
    jp,
    no mention of smoke sealing the door in the codes that i am aware of! properly sealed doors limiting air infiltration per energy code will seal smoke i suppose.
    marc,
    section 117 of the 2008 builing energy efficiency standards.
    "joints and other openings in the building envelope that are potential sources of air leakage shall be caulked, gasketed,weatherstripped, or otherwise sealed to limit infiltration and exfiltration."


  9. #9
    Join Date
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    Location
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    Default Re: Door from residence to garage

    If the garage is unconditioned (ie not heated or cooled), the wall (and door) between the residence and the garage forms part of the thermal envelope and therefore must be insulated and the door weatherstripped. There is no smoke-tight requirement for the door. If the garage was conditioned you wouldn't need weatherstripping/sealing at all, just the door; in that situation the lack of weatherstipping would be contrary to common sense, but not the code.

    "BUILDING THERMAL ENVELOPE. The basement walls, exterior walls, floor, roof, and any other building element that enclose conditioned space. This boundary also includes the boundary between conditioned space and any exempt or unconditioned space. "

    Last edited by TR Platt; 05-16-2011 at 05:22 PM.

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