Wouldn't be the first time I thought the NFPA interp was wrong and I think that again now.
Ron fletcher Sent from my iPhone > On Aug 21, 2014, at 4:34 PM, "Steven P. Biship" <[email protected]> > wrote: > > I actually called NFPA a couple weeks ago for an "unofficial interpretation" > for this exact subject with regards to ESFR sprinkler installations. I was > told that the term "Maximum Ceiling/Roof Height" found in the tables applies > to the maximum building height of the structure, regardless of the area of > storage. I personally don't agree but that was what I was told. > > Steven P. Biship, FPE, CFPS > 4214 Floyd Drive > Corona, Ca. 92883 > > P: 951-427-3781 > F: 951-427-3655 > C: 714-984-4346 > > -----Original Message----- > From: Sprinklerforum [mailto:[email protected]] > On Behalf Of Parsley Consulting > Sent: Thursday, August 21, 2014 3:57 PM > To: [email protected] > Subject: Re: ESFR Table 17.2.3.1 NFPA 13 2013 > > Greg, > I would look at the definition of ceiling height in 3.3.3: > > 3.3.3 Ceiling Height. The distance between the floor and the > underside of the ceiling above (or roof deck) within the area. > > It would seem to me that this definition backs up the perspective that Ron > has added. > > Has nothing to do with the roof height, only the height of the ceiling in > the area of storage. > > If a storage area in a high rise had an 28' ceiling, and yet the building > was 22 floors high, you certainly would not design based on a 22 story > "ceiling height." > > Just one perspective. > *Ken Wagoner, SET > *Parsley Consulting*** > *350 West 9th Avenue, Suite 206 > *Escondido, CA 92025-5053 > *****Phone 760.745.6181* > Visit our website <http://www.parsleyconsulting.com/> *** On 8/21/2014 3:46 > PM, [email protected] wrote: >> I would say the maximum height is meant to apply the area of storage and > not the maximum height of the entire building. "A.17.2.3 Storage in > single-story or multistory buildings can be permitted, provided the maximum > ceiling/roof height as specified in chapter 12 is satisfied for each storage > area." If there were a high bay above 48' with in racks and the remainder of > the building was at <40' would you use area density with in racks in the 40' > area because there are no ESFR's listed for greater than 48'? >> Ron F >> >> -----Original Message----- >> From: Sprinklerforum >> [mailto:[email protected]] On Behalf Of >> Gregg Fontes >> Sent: Thursday, August 21, 2014 2:06 PM >> To: [email protected] >> Subject: ESFR Table 17.2.3.1 NFPA 13 2013 >> >> A question has come up that in Table 17.2.3.1 the column that states > Maximum Ceiling/Roof Height applies to the maximum Ceiling/Roof height of > the building, not the storage area. As an example, if a warehouse has > cartoned expanded plastics storage to 25' high in a portion of the warehouse > that has a roof/ceiling height of under 32', but the ridge height of the > building is 33'-0, they are suggesting that the cartoned expanded plastic > cannot be stored in the building because the ridge height (not the area of > storage) is above 32'. There reasoning is that the table applies to the > entire building, not the area of storage. Therefore if the highest point of > the building exceeds the list table height, even though the storage area > roof height is under the table height, the table cannot apply. Is this a > correct assumption or is the maximum height meant to apply to the area of > storage? >> >> >> >> Thanks, >> Gregg Fontes >> Cen-Cal Fire Systems, Inc. >> 209-334-9119 >> >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl >> er.org _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl >> er.org > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
