Feb 22, 2020 · Hi, I was hoping somebody could enlighten me about the reason why the IBC (2015) 505.2.1 forces a designer to enlarge the building until the unenclosed areas of the room enclosing …

Dec 12, 2022 · Consider a room with a mezzanine. For simplicity's sake lets call it a square box, type VB, NS. The square box has a mezzanine running the perimeter of the floor below, like a race track …

Oct 19, 2009 · The mezzanine is surrounded by a guard rail and the stairway is open / unenclosed. Question: After establishing that the upper level is no longer a mezzanine and is now a second floor, …

Jan 30, 2017 · The mezzanine is a "floor" and the level of exit discharge is at the floor level below (even though the mezzanine is part of that story). ClassicT provided one interpretation that is possible and …

Mar 5, 2020 · A municipality in our region is constructing an aircraft hangar. NFPA 409 is a document being used as a reference in the design. The proposed design (which I haven't seen) features an …

May 7, 2021 · As proposed, the mezzanine/story sits above the B-range and extends out and over the M-retail space, and would be used as offices in support of the operation and accessory storage. …

Jun 17, 2011 · I have a mezzanine in an M use group which based on occupant load and being enclosed requires two means of egress. The building is sprinklered. We are separating the exits by …

Oct 16, 2009 · The IBC requires 2 exits from a mezzanine when the occupant load exceeds 49 (or lower in some occupancies). The NFPA section you quoted starts at 50+, so the 50th person is the …

Apr 2, 2012 · The aggregate area of a mezzanine or mezzanines within a room shall be not greater than one-third of the floor area of that room or space in which they are located. The enclosed portion of a …

Oct 23, 2023 · We have a client who is interested in exploring the possibility of adding a mezzanine or second floor level above an existing area in a large multi-story assembly building. The area we would …