NFPA 13, 2007; section 8.5.3.2.4
Exhibit 8.8 shows two diagrams. One for "no floor area" and the other "with
floor area".
Both diagrams appear to be the same. Am I drunk or is one diagram incorrect?
Another question. A school with classrooms having bay windows, similar to
exhibit 8.8, except there is a combustible concealed space forming part of
the wall below the window.
__________________ <--- CEILING
I I
I I
I I <--- WALL
I I
I I__________
I__________ I
I II
I II <--- WINDOW
I II
I II
__________I I
I I
I I
I I
I <---I------- COMBUSTIBLE
CONCEALED SPACE
I____________I
This concealed space is 12 feet long 3 feet wide and 3 feet deep. The Fire
Marshall is asking for sprinklers in this combustible concealed space. My
thoughts are it is less than 160 cubic feet, so should not need sprinklers.
However, I don't see a code section relating specifically to this situation.
Any comments?
Tony
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