Sorry, didn't realize you had an over/under system, is it systems (2)? With above and below (same piping you still would have to do the higher hazard) and the light at 14.8 Q to prove which is more demanding. Make sense? AS it is an unrated wall and a fire could start on the sales side floor and go into the storage area, right.
On Fri, Jul 16, 2010 at 5:59 PM, Hinson, Ryan <[email protected]> wrote: > So are those heads above the ceiling over the sales area QR, and if so, are > you using area reduction for that portion of the remain required remote > area? > > Ryan Hinson > Burns & McDonnell > Direct: 952-656-6003 Ext 3662 > > -----Original Message----- > From: [email protected] [mailto: > [email protected]] On Behalf Of ParsleyConsulting > Sent: Friday, July 16, 2010 4:14 PM > To: [email protected] > Subject: Re: Adjacent hazards > > No, Tom, the remainder of the space is "light hazard" which is the space > above the ceiling OVER the sales area. The space under the ceiling is > protected at 0.20 gpm/ft2, but the space at the combustible roof deck > would only require LH density, even though the sprinklers there were > spaced at 130 ft2 in the original install. > > Thanks, > -- > > PARSLEY CONSULTING > > Ken Wagoner, SET > > 760.745.6181 voice > > 760.745.0537 fax > > [email protected] <mailto:[email protected]> e-mail > > www.ParsleyConsulting.com <http://www.ParsleyConsulting.com> website > > > > > tom poisal wrote: > > Ken thats how I see it. But the remainder of your space is "sales" which > is > > mercantile, ORD GP II - .2 density > > > > On Fri, Jul 16, 2010 at 2:24 PM, ParsleyConsulting < > > [email protected]> wrote: > > > > > >> Tom, > >> > >> I have a building which has a 260 sqft area which requires 0.5 gpm/sqft > >> over 2,500 sqft due to storage commodity and height. The unrated walls > >> separating the storage area from the sales area extend a foot above the > >> 11'-0" ceiling in the sales area, while the storage area is open to the > >> 16'-0" roof deck. Total suite area is only 1,300 ft2. > >> > >> Do I have to extend the 0.5 density to the entire rest of the space > >> above the ceiling which is adjacent and open to the storage room? Or do > >> I simply extend it 150'-0" past the room, based on Section and Table > >> A.12.3 ('10 edition of -13)? > >> > >> My interpretation of those sections, along with 12.3(1) is that I'd have > >> to provide 0.5 gpm/sqft over the storage area, plus 15'-0", while the > >> remainder of the space would only require 0.10 gpm density for light > >> hazard. The high temp sprinklers would have to extend beyond the > >> storage area by 30', but only the first 15' require the higher density. > >> > >> Does that line up with your thinking? > >> -- > >> > >> PARSLEY CONSULTING > >> > >> Ken Wagoner, SET > >> > >> 760.745.6181 voice > >> > >> 760.745.0537 fax > >> > >> [email protected] <mailto:[email protected]> e-mail > >> > >> www.ParsleyConsulting.com <http://www.ParsleyConsulting.com> website > >> > >> > >> > >> > >> > >> tom poisal wrote: > >> > >>> Russell, the latter is correct, .3 over the area plus 15' border. the > >>> balance is .2. The size of the of the operating area is determined by > >>> > >> the > >> > >>> higher hazard. A.11.2.3.1.1 (02 handbook) > >>> > >>> On Fri, Jul 16, 2010 at 11:10 AM, Russell <[email protected] > >>> wrote: > >>> > >>> > >>> > >>>> Please bear with me for not letting this topic go but I need to > confirm > >>>> something. I cannot remember the last time I dealt with adjacent > hazards > >>>> that were not separated by a partion. > >>>> NFPA 13 '10 A11.1.2 leads me to believe that if a .3 density hazard > >>>> requires 2500 s.f. then the remote area for that hazard would take in > >>>> > >> that > >> > >>>> area and as much of the .2 density hazard area as necessary to fulfill > >>>> > >> the > >> > >>>> 2500 s.f. (understanding that the .3 would not be required for the .2 > >>>> > >> area). > >> > >>>> That doesn't seem just to me. If the .3 area plus the 15' border > doesn't > >>>> cover enough area to attain 2500 s.f. then use only all the area it > does > >>>> involve plus the border because the .2 occupany isn't the same fire > >>>> > >> threat. > >> > >>>> Does that make any sense? > >>>> > >>>> Russell > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> ________________________________________________________________ > >>>> Sent via the WebMail system at brownautomatic.com > >>>> > >>>> > >>>> > >>>> > >>>> _______________________________________________ > >>>> Sprinklerforum mailing list > >>>> [email protected] > >>>> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > >>>> > >>>> For Technical Assistance, send an email to: [email protected] > >>>> > >>>> To Unsubscribe, send an email > >>>> > >> to:[email protected]<to%[email protected]> > <to%[email protected]<to%[email protected]> > > > >> <to%[email protected]<to%[email protected]> > <to%[email protected]<to%[email protected]> > > > >> > >>>> (Put the word unsubscribe in the subject field) > >>>> > >>>> > >>>> > >>> > >>> > >>> > >> _______________________________________________ > >> Sprinklerforum mailing list > >> [email protected] > >> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > >> > >> For Technical Assistance, send an email to: [email protected] > >> > >> To Unsubscribe, send an email > to:[email protected]<to%[email protected]> > <to%[email protected]<to%[email protected]> > > > >> (Put the word unsubscribe in the subject field) > >> > >> > > > > > > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email > to:[email protected]<to%[email protected]> > (Put the word unsubscribe in the subject field) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email > to:[email protected]<to%[email protected]> > (Put the word unsubscribe in the subject field) > -- Tom Poisal, CET _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
