But (1) should allow you to go 1"-6" below the structural members (in this case the purlins) and a max. of 22" below the ceiling/roof deck. The purlins are the obstructed construction in this case.
Bobby Gillett Sr. Project Manager Key Fire Protection, Inc. (731) 424-0130 office (731) 424-9285 fax (731) 267-4853 cell <mailto:[email protected]> [email protected] _____ From: [email protected] [mailto:[email protected]] On Behalf Of Ralphy Henderson Sent: Tuesday, October 26, 2010 12:43 PM To: [email protected] Subject: RE: Maximum Deflector Distance below Z Purlins I agree... that would mean the 12" from deck would come into effect. I think 9.2.4.2 (in the 07 ed) helps clarify what is meant by "bay" also. As far as Mike's original post goes, with 9 1/2" z-purlins, he should be fine as long as he's not more than 2 1/2" below the bottom of the purlins. --- On Tue, 10/26/10, Matthew J. Willis <[email protected]> wrote: From: Matthew J. Willis <[email protected]> Subject: RE: Maximum Deflector Distance below Z Purlins To: [email protected] Date: Tuesday, October 26, 2010, 5:20 PM Good question. It is not defined in Chapter 3; however, there are several examples of "bay" throughout the standard. In particular note the figures showing typical calc areas. "Bay" as I understand it, is the area between the Frames that the purlin rest on. R/ Matt Matthew J. Willis, CET Automatic Fire Sprinklers Norred Fire Systems L.L.C. 318-387-1134 Voice 318-816-1087 Mobile 318-387-1163 Facsimile [email protected] > >-----Original Message----- > >From: [email protected] [mailto:sprinklerforum- > >[email protected]] On Behalf Of Brad Casterline > >Sent: Tuesday, October 26, 2010 11:54 AM > >To: [email protected] > >Subject: RE: Maximum Deflector Distance below Z Purlins > > > >It is something to think about I guess. But since the purlins are the > >structural members impeding the heat flow, where does BAY come in? > > > >-----Original Message----- > >From: Matthew J. Willis [mailto:[email protected]] > >Sent: Tuesday, October 26, 2010 8:58 AM > >To: [email protected] > >Subject: RE: Maximum Deflector Distance below Z Purlins > > > >I always thought subsection (3) superseded when spaced in the bays.? > > > > R/ > >Matt > > > > > > > >Matthew J. Willis, CET > >Automatic Fire Sprinklers > >Norred Fire Systems L.L.C. > >318-387-1134 Voice > >318-816-1087 Mobile > >318-387-1163 Facsimile > >[email protected] > > > >> >-----Original Message----- > >> >From: [email protected] [mailto:sprinklerforum- > >> >[email protected]] On Behalf Of Brad Casterline > >> >Sent: Monday, October 25, 2010 2:00 PM > >> >To: [email protected] > >> >Subject: RE: Maximum Deflector Distance below Z Purlins > >> > > >> >If the purlin spacing does not exceed 7'-6", I think so. > >> > > >> >-----Original Message----- > >> >From: Bobby Gillett [mailto:[email protected]] > >> >Sent: Monday, October 25, 2010 1:53 PM > >> >To: [email protected] > >> >Subject: RE: Maximum Deflector Distance below Z Purlins > >> > > >> >If my understanding is correct, this is considered obstructed > >> >construction > >> >now so it would be per 8.6.4.1.2 and if the scenario is typical to > >most > >> >purlin buildings you should be able to utilize 8.6.4.1.2 (1) 1"-6". > >What > >> >say > >> >everyone else? > >> > > >> > > >> > > >> >Bobby Gillett > >> > > >> >Sr. Project Manager > >> > > >> >Key Fire Protection, Inc. > >> > > >> >(731) 424-0130 office (731) 424-9285 fax > >> > > >> >(731) 267-4853 cell > >> > > >> > <mailto:[email protected]> > >> >[email protected] > >> > > >> > > >> > > >> > > >> > > >> > _____ > >> > > >> >From: [email protected] > >> >[mailto:[email protected]] On Behalf Of Mike > >> >Hairfield > >> >Sent: Monday, October 25, 2010 1:44 PM > >> >To: AFSA SprinklerFORUM > >> >Subject: Maximum Deflector Distance below Z Purlins > >> > > >> > > >> > > >> > > >> > > >> >OK Metal building with 9 1/2" Z-Purlins, what is maximum distance that > >> >the > >> >deflector can be below the > >> >bottom of the Purlin. > >> > > >> >Mike > >> >_______________________________________________ > >> >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:Sprinklerforum- > >[email protected] > >> >(Put the word unsubscribe in the subject field) > >> > > >> > _____ > >> > > >> >No virus found in this message. > >> >Checked by AVG - www.avg.com > >> >Version: 10.0.1152 / Virus Database: 422/3218 - Release Date: 10/25/10 > >> > > >> >_______________________________________________ > >> >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:Sprinklerforum- > >[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:Sprinklerforum- > >[email protected] > >> >(Put the word unsubscribe in the subject field) > >> >No virus found in this incoming message. > >> >Checked by AVG - www.avg.com > >> >Version: 9.0.862 / Virus Database: 271.1.1/3204 - Release Date: > >10/25/10 > >> >01:34:00 > > > >_______________________________________________ > >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) > >No virus found in this incoming message. > >Checked by AVG - www.avg.com > >Version: 9.0.864 / Virus Database: 271.1.1/3204 - Release Date: 10/26/10 > >01:34:00 _______________________________________________ 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) _____ No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1152 / Virus Database: 424/3220 - Release Date: 10/26/10 _______________________________________________ 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)
