I spent some time on the web site looking at this and when I saw the promotion for greater than the 6.5" bracket, a red flag jumped out. Maybe some day they will do some full scale fire tests on cloud ceilings and we can figure out what we really need. I know this was beyond the post and I hope I didn't confuse anyone.
At 12:34 PM 8/12/2009, you wrote: >Todd, > >Good point but not stated in the original problem. This is a >problem/benefit we have on the forum when trying to answer questions. >Sometimes we're led down a tangent that confuses an issue and >sometimes one that brings up other interesting sidebars. Sometimes I >wish we would get a little more info from the poster. The actual >height would have been handy here but then your comment might not have >been posted and we'd have missed this point. On the other hand >Monday's residential bathroom question (lintel/full height door) took >me immediately to 13D since I'm spending most of my residential energy >these days in attempts to thwart the NAHB's efforts regarding !RC 09. > >On Wed, Aug 12, 2009 at 9:02 AM, Todd Williams<[email protected]> wrote: > > The standard bracket for this product is 6-1/2", which is within > > Chris' 12". However, the product data also says that they can be hung > > at any height with standard ceiling wire. So if someone wants to > > decrease noise in a manufacturing occupancy and installs these 18" > > down, do we now have a potential cloud ceiling problem beyond Light > > Hazard occupancies? > > > > > > > > At 11:40 AM 8/12/2009, you wrote: > >>You are protecting the floor with sprinklers not the deck. Ceiling clouds > >>in themselves are not mentioned in the standard. The committee in their > >>infinite wisdom decided 12" is an acceptable distance down for a deflector. > >>Not counting combustible concealed spaces (which you said this is not) it > >>doesn't matter what is going on above the sprinklers. Fly with who, the > >>AHJ, not a chance they will win this one. You may choose not to fight if > >>they give you grief but that doesn't make them right. I'll turn it around > >>where does it say you need them above. Sprinklers are within 12" and then > >>you treat obstructions in the various zones (<18" and >18"). It's the > >>obstruction part that drives above and below in typical cloud ceilings. If > >>you are at 12" in this case where is the obstruction? > >> > >>Chris Cahill, P.E. > >>Fire Protection Engineer > >>Sentry Fire Protection, Inc. > >> > >>763-658-4483 > >>763-658-4921 fax > >> > >>Email: [email protected] > >> > >>Mail: P.O. Box 69 > >> Waverly, MN 55390 > >> > >>Location: 4439 Hwy 12 SW > >> Waverly, MN 55390 > >> > >>-----Original Message----- > >>From: [email protected] > >>[mailto:[email protected]] On Behalf Of Brian Harris > >>Sent: Wednesday, August 12, 2009 10:20 AM > >>To: [email protected] > >>Subject: RE: Armstrong Optima Capz Panels > >> > >>Why wouldn't these be treated like ceiling clouds with heads above and > >>below? It's open on both sides of the panel (parallel to the joist) to > >>deck, how can I get away without protecting the deck? I like your idea way > >>better than mine but I'm not sure it will fly. > >> > >> > >>Brian Harris > >>FDFP INC. > >> > >>-----Original Message----- > >>From: [email protected] > >>[mailto:[email protected]] On Behalf Of Chris Cahill > >>Sent: Wednesday, August 12, 2009 11:09 AM > >>To: [email protected] > >>Subject: RE: Armstrong Optima Capz Panels > >> > >>I though Jamie answered this Tues. at 2:47 pm. > >> > >>"Unobstructed construction? Heads 12" down maybe?" > >> > >>That was my thought. No above and below. You'll have to see if you can > >>hide the pipe above, if not exposed. Arch. will have work with you if > >>he/she/it wants the pipe covered and you can't fit it above for whatever > >>reason. > >> > >>Chris Cahill, P.E. > >>Fire Protection Engineer > >>Sentry Fire Protection, Inc. > >> > >>763-658-4483 > >>763-658-4921 fax > >> > >>Email: [email protected] > >> > >>Mail: P.O. Box 69 > >> Waverly, MN 55390 > >> > >>Location: 4439 Hwy 12 SW > >> Waverly, MN 55390 > >> > >>-----Original Message----- > >>From: [email protected] > >>[mailto:[email protected]] On Behalf Of Brian Harris > >>Sent: Wednesday, August 12, 2009 9:56 AM > >>To: [email protected] > >>Subject: RE: Armstrong Optima Capz Panels > >> > >>Standard school construction, CMU walls, Bar Joist, Metal decking. > >> > >> > >>Brian Harris > >>FDFP INC. > >> > >>-----Original Message----- > >>From: [email protected] > >>[mailto:[email protected]] On Behalf Of Seidl Jamie > >>D. > >>Sent: Wednesday, August 12, 2009 10:53 AM > >>To: [email protected] > >>Subject: RE: Armstrong Optima Capz Panels > >> > >>What is your construction type? > >> > >>-----Original Message----- > >>From: [email protected] > >>[mailto:[email protected]] On Behalf Of Brian Harris > >>Sent: Wednesday, August 12, 2009 10:33 AM > >>To: [email protected] > >>Subject: FW: Armstrong Optima Capz Panels > >> > >>Anybody ?? > >> > >> > >>Regards, > >> > >>Brian Harris > >> > >>FDFP INC. > >> > >> > >> > >> _____ > >> > >>From: Brian Harris [mailto:[email protected]] > >>Sent: Tuesday, August 11, 2009 3:29 PM > >>To: '[email protected]' > >>Subject: Armstrong Optima Capz Panels > >> > >> > >>Has anyone ever come across these Armstrong Optima Capz Panels? For product > >>information you can Google "optima capz". Basically they are an acoustical > >>panel that are mounted within 6" of the roof deck in an "open" type ceiling > >>installation. My question is since it is open to deck all around these > >>panels wouldn't you need heads both above and below the panels? With there > >>only being 6" max space above these panels and taking into account the top > >>chord of the joist it only leaves you with 3" or so to run the pipe, add > >>upright heads, and arm-over's to catch the pendants....... Is there some > >>code section that addresses situations like this? > >> > >> > >>Regards, > >> > >> <http://www.firstdefensefire.com/> > >> > >> > >> > >> > >> > >> > >> > >> > >>E-mail message checked by Spyware Doctor (6.0.1.441) Database version: > >>6.13030 http://www.pctools.com/en/spyware-doctor-antivirus/ > >>_______________________________________________ > >>Sprinklerforum mailing list > >>http://lists.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) > >> > >> > >> > >> > >> > >>E-mail message checked by Spyware Doctor (6.0.1.441) Database version: > >>6.13030 http://www.pctools.com/en/spyware-doctor-antivirus/ > >> > >> > >> > >> > >> > >>E-mail message checked by Spyware Doctor (6.0.1.441) Database version: > >>6.13030 http://www.pctools.com/en/spyware-doctor-antivirus/ > >>_______________________________________________ > >>Sprinklerforum mailing list > >>http://lists.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 > >>http://lists.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) > >> > >> > >> > >> > >> > >>E-mail message checked by Spyware Doctor (6.0.1.441) Database version: > >>6.13030 http://www.pctools.com/en/spyware-doctor-antivirus/ > >> > >> > >> > >> > >> > >>E-mail message checked by Spyware Doctor (6.0.1.441) > >>Database version: 6.13030 > >>http://www.pctools.com/en/spyware-doctor-antivirus/ > >>_______________________________________________ > >>Sprinklerforum mailing list > >>http://lists.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 > >>http://lists.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) > > > > Todd G. Williams, PE > > Fire Protection Design/Consulting > > Stonington, Connecticut > > www.fpdc.com > > 860.535.2080 > > _______________________________________________ > > Sprinklerforum mailing list > > http://lists.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) > > > > > >-- >Ron Greenman >Instructor >Fire Protection Engineering >Bates Technical College >Tacoma, WA > >Member: >SFPE, ASCET, NFPA, AFSA, NFSA AFAA >_______________________________________________ >Sprinklerforum mailing list >http://lists.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) Todd G. Williams, PE Fire Protection Design/Consulting Stonington, Connecticut www.fpdc.com 860.535.2080 _______________________________________________ Sprinklerforum mailing list http://lists.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)
