And that's what I get for not double checking the code... Thanks for the heads up cliff! So to use the beam rule I would have to move my head over to the next tile and then I would be more than 7'-6" away from the centerline of the larger obstruction.
It's going to look weird having only two heads in that soffit but oh well. Thanks, On Tuesday, September 27, 2016, Cliff Whitfield <[email protected]> wrote: > Ben, > > > > The soffit has to be next to a ‘wall’ for you to be able to use the > “soffit obstruction rule”. Since you’ve stated that it ‘in the middle of > the sanctuary’, you can’t apply this rule and will need sprinklers under > the soffit unless you can comply with the distances allowed in the ‘beam > blocking rule’. > > > > Cliff Whitfield > > > > *From:* Sprinklerforum [mailto:[email protected]. > org > <javascript:_e(%7B%7D,'cvml','[email protected]');>] > *On Behalf Of *Ben Young > *Sent:* Tuesday, September 27, 2016 11:15 AM > *To:* [email protected] > <javascript:_e(%7B%7D,'cvml','[email protected]');> > *Subject:* Double soffits > > > > This is a new one for me... > > I have two soffits next to each other in the middle of a sanctuary. If you > look at the attached screen cap, one is labeled A and the other is B. > > Now B is less than 30" deep and I can throw water underneath it with the > head in the drop ceiling using the soffit obstruction rule. Soffit B I was > going to treat as an obstruction less than 4 feet wide with heads on both > sides of it. > > Can I look at the soffits separately like that, or do I have to count them > together as an obstruction over 4 feet wide and add a head in soffit B? > > Concealed QR heads (standard coverage), NFPA 13 2013 edition, light > hazard, non-combustible construction for the soffits. > > > Benjamin Young > > [image: Inline image 2] > > > ------------------------------ > [image: Avast logo] > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> > > This email has been checked for viruses by Avast antivirus software. > www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> > > -- Benjamin Young
_______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
