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]> >> >>>> (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] (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] (Put the word unsubscribe in the subject field)
