I have been watching this thread with interest, and finally have to ask (and
yes, I am sure this will stir the pot as well)....
This particular issue is one which requires more than just mundane
interpretation of the NFPA 13 standard. Who should be doing the
interpreting??? NICET technicians, or PE"s, or ???
My gut feeling here is that if you choose to support the more liberal
interpretation, that this will NOT require both above and below protection,
especially without any significant test data to back it up at this point,
that this is not the place for a NICET technician to make this decision, or
for that matter to try to "sell" it to the local AHJ. Do you really want
that liability? Not to mention whether you are exceeding your "authority"
under NICET rules for practicing engineering?
Jeff Hewitt, PE, SET, SFPE (Professional Member)
Corporate Engineer
Bi-State Fire Protection Corporation
241 Hughes Lane
St. Charles, MO 63301
636-946-0011
636-946-5172 (FAX)
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----- Original Message -----
From: "Rick Green" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Tuesday, August 05, 2008 10:38 AM
Subject: RE: Floating Ceilings
NFPA 13 2002 Edition - Section 8.14.1.2.2 - "Noncombustible and limited
combustible concealed spaces with limited access and not permitting
occupancy or storage or combustibles shall not require sprinkler
protection. The space shall be considered a concealed space even with
small openings such as those used as return air for a plenum".
Maybe I did not describe correctly the ceiling construction. The ceiling
will be installed throughout the space(s) at the same elevation. The
"openings" are 7" gaps along the perimeter walls or between sections of
the ceiling within the room. This only occurs in a few of the
spaces/rooms and those rooms are separated by full height wall from other
spaces.
I believe the section above may adequately address this issue to the point
I can meet with AHJ concerning sprinkler protection above the ceiling
space.
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