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Door requirements between conditioned and unconditioned space

Discussion in 'Commercial Energy Codes' started by Dave Conner, Feb 19, 2019.

  1. Dave Conner

    Dave Conner Registered User

    Feb 19, 2019
    Likes Received:
    I wanted to find out what the code requirements are for a door between a kitchen and a stairwell that leads to an unconditioned basement. During our renovation the inspector requested that an exterior door be installed to separate our kitchen from the basement stairs leading to an unconditioned basement. I haven't had the opportunity yet to speak with the inspector directly and the contractor on site during the inspection did not provide the explanation. I am concerned about the appearance of a standard prehung exterior door and the possibility that a threshold might be a tripping hazard at the top of the stairs. We did intend to install a door.

    Thank you
  2. steveray

    steveray Sawhorse

    Nov 25, 2009
    Likes Received:
    It depends on a multitude of thing...Where in the world are you and what code do you use being the basics...

    N1102.2.4 (R402.2.4) Access hatches and doors. Access
    doors from conditioned spaces to unconditioned spaces
    such as attics and crawl spaces shall be weatherstripped
    and insulated to a level equivalent to the insulation on the
    surrounding surfaces. Access shall be provided to all
    equipment that prevents damaging or compressing the
    insulation. A wood-framed or equivalent baffle or retainer
    is required to be provided when loose-fill insulation is
    installed, the purpose of which is to prevent the loose-fill
    insulation from spilling into the living space when the attic
    access is opened, and to provide a permanent means of
    maintaining the installed R-value of the loose-fill insulation.

    N1102.3.4 (R402.3.4) Opaque door exemption. One sidehinged
    opaque door assembly up to 24 square feet (2.22
    m2) in area is exempted from the U-factor requirement in
    Section N1102.1.2. This exemption shall not apply to the
    U-factor alternative approach in Section N1102.1.4 and the
    total UA alternative in Section N1102.1.5.
  3. mike-d

    mike-d Sawhorse

    Dec 17, 2018
    Likes Received:
    yes, need more info;
    - is this a residential or a non-residential project?
    - what part of the world is this project, at least which state.
  4. mark handler

    mark handler Sawhorse

    Oct 25, 2009
    Likes Received:
    Why is this posted in the Commercial Code section?
  5. VillageInspector

    VillageInspector Sawhorse

    Feb 9, 2010
    Likes Received:
    Wondering same thing unless this is pertaining to a commercial kitchen and basement. I agree we need more info

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