Occupancy Type

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    David Kaplan

    Yong,

    Motor Vehicle Repair would be a shop where people are fixing cars.  Cars are up in the air in several bays, guys are fixing them below.  You've got lots of pieces and parts and liquids/oils stored in the facility as well.

    Motor Vehicle Service Station is a gas station.  So that's why the Mercantile use group.  People are buying fuel, and then going inside and buying beef jerky and combos.

    Motor Vehicle Showrooms is a car dealership.  Cars are just sitting there in the showroom for display.  Not serving, not taking apart, etc.  There's also offices for staff and rooms for visitors.  It's a Business - hence the B Use Group.

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    Yong Jae Kim

    Thank you, David. You are the best!!

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    Jennifer Schuler

    Hi, I have a question related to this.. in ASC it says S1 and M and B are not required to have a fire separation between them. In Building Codes Illustrated it says S1 (Auto Repair) IS required to have a fire separation. How do you know which one to follow? I assume the more strict requirement in this case BCI. Thank you!

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    David Kaplan

    Jennifer,

    I'm not certain if you've provided enough context of the question here but I will offer this: I don't care what ASC or BCI says - you should look into what IBC 2015 says.  There are instances where fire separations need to be provided between use groups, but there's factors that play into this.  "Is the building sprinkled" is the biggest one.  You should reference Table 508.4 in IBC with respect to separated mixed use occupancies.  The other area I would look into the Code is Chapter 4, which has specific requirements for Use Groups that have to be followed.  S-1 should be in there, I believe.

    Point is this - I read your "I assume the more strict requirement in this case BCI" comment and I said WAIT.  It is true that with respect to codes, you must follow the strictest requirement in the event that there is a conflict between different guidelines.  However, neither BCI nor ASC are codes.  That's why I'm telling you that, for this question, forget those books and go right to the source: IBC. 

    I would offer as well that you are not going to need to memorize the required separations on the exam.  If you are asked a question about this, they are going to give you Table 508.4 and perhaps excerpts from both Chapters 3 and 4 on the exam where you can look this info up direct from IBC.

    Hope that helps.

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