Rod, Tom Wellen has been modeling these types of scenarios. Based on his work and the Committee's need for more data, the Fire Sprinkler Academy and FM Global submitted a request for further study by the Fire Protection Research Foundation. It was accepted and is moving forward as a full blown research effort to find out what a "large opening" is for "cloud ceilings". The Cloud Ceiling Project will provide results in about a year from now. Until then....... sprinklers required in your case (IMHO). For those of you going to NFPA in Las Vegas next week. Tom is presenting some of his research and it ought to be a great learning experience.
It should be recognized that the above is my opinion as a member of the NFPA, and has not been processed as a formal interpretation in accordance with the NFPA Regulations Governing Committee Projects and should therefore not be considered, nor relied upon, as the official position of the the NFPA, nor any of their technical committees. Sincerely, Cecil Bilbo Academy of Fire Sprinkler Technology Champaign, IL 217.607.0325 www.sprinkleracademy.com [email protected] OUR STUDENTS SAVE LIVES!! > From: [email protected] > To: [email protected] > Subject: corridor ceiling > Date: Tue, 5 Jun 2012 17:18:08 +0000 > > NFPA 2010 is the applicable standard. Drop in ceiling down the corridor on > all four floors of a new construction office building. Non combustible 4' > vertical space above. Ceiling leaves a gap and doesn't connect to the wall on > either side of the corridor. The gap is 1'0 on both sides. Trying to figure > out if sprinklers are required above. I don't see any part of the standard > that clearly addresses this. The closest I can see is the following: > > 8.15.1.2.1*<http://codesonline.nfpa.org/a/c.ref/ID00001330400/sec> Concealed > spaces of noncombustible and limited-combustible construction with minimal > combustible loading having no access shall not require sprinkler protection. > > 8.15.1.2.1.1 The space shall be considered a concealed space even with small > openings such as those used as return air for a plenum. > > Do you think that this situation would classify as a concealed space? Do you > think this space requires sprinklers above the ceiling? AHJ statement is to > do it per code. Thanks for any input. > > [Description: LOGO_10] > Rod DiBona > Vice President > Rapid Fire Protection > office : (605)348-2342 > fax : (605)348-0108 > cell : (605)391-3553 > www.rapidfireinc.com<http://www.rapidfireinc.com> > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120605/7265eaa1/attachment.html> > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: image001.jpg > Type: image/jpeg > Size: 6561 bytes > Desc: image001.jpg > URL: > <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120605/7265eaa1/attachment.jpg> > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120605/3d29186b/attachment.html> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
