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Aerial fire apparatus access roads

Discussion in 'Commercial Fire Codes' started by Utakecare2019, Aug 8, 2019.

  1. Utakecare2019

    Utakecare2019 Registered User

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    Please help me to understand this better...
    What is the point of this requirement? Is it just to get onto the roof?
    • If our building has pitched roof with mechanical roof well in the middle, is the sloped roof (metal panel roof) required to be accessible?
    • If there is a roof access hatch to get onto the roof, do we still need this aerial road?
    • If a portion of the pitched roof is <30' which then fire fighters can get onto the roof from there with ladder, is the aerial road still required?
    • If the building has sloped roof all over the place, only a tiny portion is over 30', is that still required?
    Thanks
     
  2. RLGA

    RLGA Sawhorse

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    What is the requirement...do you have a specific code and citation?
     
  3. jeffc

    jeffc Bronze Member

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    The 2015 International Fire Code, Appendix D, Section D105 states, "Where the vertical distance between the grade plane and the highest roof surface exceeds 30 feet, approved aerial fire apparatus access shall be required." This requirement also comes with a wider fire department access road, located 15' from the building, no more than 30 from building and no overhead power lines. The larger ladder trucks have outriggers that drive the larger widths.

    I will try and answer your questions but the local fire inspector may have an interpretation that takes precedence over my humble opinion.
    •If our building has pitched roof with mechanical roof well in the middle, is the sloped roof (metal panel roof) required to be accessible?
    Accessible is a very specific term meaning barrier free. The roof does not need to be barrier free.
    •If there is a roof access hatch to get onto the roof, do we still need this aerial road?
    Yes, the fire department does not want to enter a burning building to access the roof.
    •If a portion of the pitched roof is <30' which then fire fighters can get onto the roof from there with ladder, is the aerial road still required?
    Yes, see the code language above.
    •If the building has sloped roof all over the place, only a tiny portion is over 30', is that still required?
    Yes, but it may warrant a discussion with the local fire inspector.
     
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  4. cda

    cda Sawhorse

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    Let me rephrase what you said, and I do simple terms

    If I am wrong please correct

    Why a access road is required


    So the fire trucks need access to the building

    The ladder truck has to be close enough for the ladder itself to reach upper floors.

    Plus if it shoots water, close enough for the water to reach.

    They need access to fire hydrants sometimes

    They need access to fire sprinkler connections

    For the ladder trucks, besides access, they have to have solid pavement to set up the Outriggers, and pavement width to set them on.

    There are other reasons that access roads are required.

    Does this somewhat answer your question??
     
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  5. cda

    cda Sawhorse

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    Further answer to your question,,

    Normally if there are exceptions they are part of the code, as in some of your examples where you are asking if the building has a certain feature, can the fire access be eliminated or modified.

    As stated before, there are several reasons why a fire access road is required.




    SECTIOND105
    AERIAL FIRE APPARATUS ACCESS ROADS

    D105.1 Where required.

    Where the vertical distance between the grade plane and the highest roof surface exceeds 30 feet (9144 mm), approved aerial fire apparatus access roads shall be provided. For purposes of this section, the highest roof surface shall be determined by measurement to the eave of a pitched roof, the intersection of the roof to the exterior wall, or the top of parapet walls, whichever is greater.

    D105.2 Width.
    Aerial fire apparatus access roads shall have a minimum unobstructed width of 26 feet (7925 mm), exclusive of shoulders, in the immediate vicinity of the building or portion thereof.

    D105.3 Proximity to building.
    At least one of the required access routes meeting this condition shall be located within a minimum of 15 feet (4572 mm) and a maximum of 30 feet (9144 mm) from the building, and shall be positioned parallel to one entire side of the building. The side of the building on which the aerial fire apparatus access road is positioned shall be approved by the fire code official.

    D105.4 Obstructions.
    Overhead utility and power lines shall not be located over the aerial fire apparatus access road or between the aerial fire apparatus road and the building. Other obstructions shall be permitted to be placed with the approval of the fire code official.
     
  6. mark handler

    mark handler Sawhorse

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    It is not just access for personnel but for Spray deluge operations
    Talk with your local department Chilis096.5a138289bf103.jpg
     

    Attached Files:

  7. mtlogcabin

    mtlogcabin Sawhorse

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    And as with all appendices unless specifically adopted they are not part of the code.
    We only adopt B, C & D as permitted by the state.
     
  8. e hilton

    e hilton Bronze Member

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    That Trex picture is interesting. Tight space. Looks like the truck is leaning a little due to the arm beinng extended.
     
  9. Utakecare2019

    Utakecare2019 Registered User

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    Thank you all for answering me. How to attach image that I saved on computer without URL? I have more to ask...
     
  10. Rick18071

    Rick18071 Sawhorse

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    click on "upload a file"
     
  11. cda

    cda Sawhorse

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    A Sawhorse forum supporting member,, can upload with no problem

    Otherwise it has to be made into a link and post the link

    The cost to support is cheap

    And there is a lot of knowledge setting here
     
  12. Builder Bob

    Builder Bob Sawhorse

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    Besides the obvious media water that is depicted, aerial access is important for rescue if an emergency arises at an elevated environment.

    If you had a heart attack on the roof, would you want to be strapped into a basket and shoved vertically into a roof hatch to the floor below ---- and then get hung over the sides of the stairs at a switchback to make the vertical transition on the steps going down.....

    Roofer went down on job twelve story building, elevators to small for stretcher ...... Had to drop thru roof hatch access, then carry down narrow stairway to first floor.....true story still remember the terror in that guys eyes every time we transitioned at the landings at the stairs.......
     
  13. ADAguy

    ADAguy Sawhorse

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    Are you asking this questions as an owner, designer or other?
     
  14. cda

    cda Sawhorse

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    Labeled as
    Architect

    Could be owner
     

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