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    NJIBC 706.5 - Fire Wall Horizontal Continuity

    It seems like in 2021 IBC 706.5 horizontal continuity still have the exception of not extending the fire wall 18" beyond the exterior surface of exterior walls. However, in 2021 New Jersey IBC, 706.5 Horizontal Continuity Firewalls shall be made smoke tight at the junction of exterior walls...
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    Pluming count for A-2 occupancy within R-2

    Thank you all for the comments! Help me a lot!
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    Pluming count for A-2 occupancy within R-2

    I have a floor level R-2, 28 units and an A-2, 1876 sf. amenity space. The A-2 area generates 126 occupant loads. Per the Plumbing code in NJ for A-2, I'll need 1.26 water closets for each of the sexes, which round up to 2. It seems like I need to provide 2 stalls for each sex. It seems a bit...
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    Senior living accessible bathroom - 18" vert. grab bar

    It's concerning accessible units. Thanks,
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    Senior living accessible bathroom - 18" vert. grab bar

    Is the 18" vertical grab in the resident units toilet not required? It is required for public toilets. Where I can find this exception stated? 2015 IBC, Colorado, R-2 and I-1 occupancy
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    No continuous insulation on a residential building - IBC 2015/ IECC 2015

    I have a project with 1/5 steel structure with steel studs and 4/5 wood structure. One level garage under grade and another level of garage above grade with concrete perimeter walls. I can only pass ComCheck if I add CI on all wood stud wall, steel stud wall, and concrete wall, in addition to...
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    Aluminum clip used at a firewall with an expansion joint

    That's creative. Thanks for sharing the idea.
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    Aluminum clip used at a firewall with an expansion joint

    Does it mean no matter what which side of building collapses, the structurally independent door frame stands?
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    Aluminum clip used at a firewall with an expansion joint

    I thought about that, but think theoretically it works. The "alcove" is not occupied at least. Other than this option, I can only think to use Won-door which costs more $$.
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    Aluminum clip used at a firewall with an expansion joint

    This is my situation. Another solution I feel more comfortable is to have a firewall at each building. The "alcove" portion between two firewalls will be part of the building on the right side. When the building on the right side collapses, the portion will collapse at the same time, but the...
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    Aluminum clip used at a firewall with an expansion joint

    Sorry, I didn't finish the detail. Please see below. Each wall on each side of the firewall will support the firewall by the clips. For this option, I am not convinced if an aluminum clip tested can achieve the movement also can extend over 2" to support the firewall.
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    Aluminum clip used at a firewall with an expansion joint

    I probably can, but I still need an aluminum clip longer and can tolerate movement
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    Aluminum clip used at a firewall with an expansion joint

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    Aluminum clip used at a firewall with an expansion joint

    Yes, I know this part. I just am not sure if any those tested aluminum clip can allow movement, also span longer than usual.
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    Aluminum clip used at a firewall with an expansion joint

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    Aluminum clip used at a firewall with an expansion joint

    I was searching for an aluminum clip to use at a firewall condition as below. The complexity I have is where I use the 2 layers of 1” gyp to separate two buildings, structural requires an expansion joint to allow 2” movement. Based on an expansion joint product, we need to have a 3” gap between...
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    Dead end corridor within mixed occupancies

    I guess that is possible, too. Thanks,
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    Dead end corridor within mixed occupancies

    Yeah, I think I need to add the door. Thanks, everybody for helps!
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    Dead end corridor within mixed occupancies

    2015IBC
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    Dead end corridor within mixed occupancies

    I am at 48'-6". I can reduce it to under 20' by adding a door in the corridor.
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    Dead end corridor within mixed occupancies

    That's what I did now, but I just wonder if code allows without the door.
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    Dead end corridor within mixed occupancies

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    Dead end corridor within mixed occupancies

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    Dead end corridor within mixed occupancies

    The corridor I circled only serves the R2, does it mean it could be max. 50 ft, although I have A-2 on this level?
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    Dead end corridor within mixed occupancies

    I have a floor plate with R2, S-2, and A-2. The aggregate area of S-2 and A-2 are over 10% of the floor plate. If I take the floor as un-separated occupancies, then I know I have to follow 20' dead end as A-2 is the more stringent. I am wondering if I separate A-2 from the rest of the floor with...
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