It was added to the 2007 edition of 13R (A.6.7.7.1.5.6). The lower
level of protection for a 13R system doesn't impact this issue since
it is inside the room verses unoccupied and concealed spaces.
A somewhat related proposal was accepted at the ROP meeting. Proposal
13-496 effective mimicked the Architectural Feature text from 13D
whereby 18 sf of shadowed floor area is allowed.
Roland
On Sep 10, 2008, at 11:57 AM, Arthur Tiroly wrote:
I know this has been discussed before but I can't find a paragraph
showing
how a small wall offset with 4 SF of floor area that is not
protected will
not require an additional sprinkler in all the bedrooms in the
nursing wing.
I understand the obstruction principal but need NFPA 13 to spell it
out for
the inspector.
Is there a paragraph I that will explain it?
Art
ATCO fire
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