View Full Version : Attic / Intersitial Space

April 5th, 2013, 12:25
Wondering if anyone would happen to know where specifically the IBC defines interstitial space, or if an attic would be considered a specific type of inerstitial space?

Thanks in advance!

north star
April 5th, 2013, 13:57
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This information is from Wikipedia ( architecture ):
https://en.wikipedia.org/wiki/Interstitial_space_(architecture) (https://en.wikipedia.org/wiki/Interstitial_space_(architecture)e)
http://upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Interstitial_space.jpg/450px-Interstitial_space.jpg (http://www.thebuildingcodeforum.com/wiki/File:Interstitial_space.jpg)
The illustration above is a conceptual drawing only, ...for a medical facility !

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mark handler
April 5th, 2013, 14:15
A "Intersitial Space" is a "concealed space"
The IBC and NFPA 13 DEFINE "concealed space"

April 5th, 2013, 18:11
I hardly think wikipedia is a quotable resource from a building code standpoint. (Not that I didn't see this diagram online before my initial post.)

Having read this section, I do not see any specific reference to interstital space requirements. By your inference that an interstital space is a concealed space, could one also conclude that an "attic" qualifies as a concealed space seeing as attics are referenced in this section?

April 6th, 2013, 00:56
look in the definitons section

Dr. J
April 9th, 2013, 16:09
It does not really address a "real" interstitial space like in a VA hospital. The Wiki-picture is pretty accurate for what is done in these type of facilities. It is always a debate whether this is a concealed accessible space, an occupied floor, part of a floor-ceiling assembly, or other concept. The typical questions are whether it needs to be sprinklered and how to protect penetrations.