Sorry if this has come up before....we have a music room with drop in ceiling
2X4 tile, but
a few of the tiles are an eggcrate style(40% open per tile). Fire Marshall
would like us to direct him to the specific
section of NFPA 13 (2010) that allows us not to put uprights above this room.
We can only find
section 8.15.1.2.1.1 explanation in handbook stating "evaluation of size and
number of openings
in relation to the overall area of the ceiling is important". This may be a
decision he as AHJ will
need to make. Structure above ceiling, of course, non-combustible.
Thanks for any help to keep us from adding uprights in this room
Gayle Knowles, SET
Project Manager
Kaufman Fire Protection Systems. Inc.
PH:505-884-2447
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