Does parapet wall needs insulation?

[ElArch]

I am working on an apartment building. The parapet wall is 5' tall with diagonal braces to support the parapet wall. In my previous company we insulated the parapet wall and the triangle space under braces to avoid condensation. Otherwise, I was told that each bay needs a small vent. Is that correct?
By the way, this is a 1 hour type V building. Does the parapet wall needs to be1hr rated? It is far away from property line.

 

[walker.t]

Does the parapet wall needs to be1hr rated? It is far away from property line.

Maybe this post on the forum will be helpful:

Y

Thread 'Nonrequired parapet atop 1 hour wall - does parapet need to be rated?'

Jan 13, 2025

Type V-1 hour apartment building, 2021 IBC / 2022 CBC
Exterior walls 13' from property line.
Roof trusses have 1 hour rated roof-ceiling assembly throughout. It qualifies for IBC 705.11 exception#4 which says parapets need not be provided.
Parapets are not being used to provide a fire separation - - they exist to help direct rainwater towards the drains.

QUESTION: when non-required parapets are provided anyway(usually for drainage or for hiding rooftop equipment), do the parapets need to be 1 hour rated, simply because they are in line with the exterior walls of the building below? Do...

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• Forum: Commercial Building Codes

In my previous company we insulated the parapet wall and the triangle space under braces to avoid condensation.

So your triangular space is kind of like a very large cant strip that covers the angled braces? One way or the other I don’t think I would have insulated the parapet or triangular space with insulation, I would think just the flat part of the roof defined by the framing members would be insulated.