Larry, Thanks, I found it in the 2013 ROC, comment 13-143. Its a shame, because it sounds like they agreed but didn't like the backwall part for some other reason. McPhee's commentary in 13-135 would have made the appendix language include areas behind sidewalls, but without something like that, I have an AHJ basically telling me that this scenario is only allowed in a 13R installation. My indentations aren't even as severe as those shown, they're only 12" deep by 5 feet wide! Oh well, I guess have something to submit next cycle now.
Benjamin Young On Thu, Apr 23, 2015 at 12:45 PM, Larry Keeping <[email protected]> wrote: > The illustration that was first submitted for their consideration, was > adjusted by the Technical Committee before it was accepted for addition > into NFPA 13. The original submission showed a 9 ft wide by 2 ft deep entry > vestibule on both sides of the corridor. I believe that when the figure was > revised the "2 ft 0 in. max." should have been edited out. > > Larry Keeping > > -----Original Message----- > From: Sprinklerforum [mailto: > [email protected]] On Behalf Of Ben Young > Sent: April-23-15 12:01 PM > To: [email protected] > Subject: Corridor shadow areas > > Does anyone know if there's an error with figure A.8.1.1(3)(a) in the 2013 > edition of NFPA 13? > There appears to be an extraneous bit at the bottom that says '2 ft 0in. > max' > > It looks like this is a holdover from a modification made to figure > 6.4.6.3.3.2 in the 2013 edition of NFPA 13R. > > I'm wondering if the bottom of the figure accidentally got chopped off in > the 13 version of the figure, and that the shadow areas behind the > sidewalls in a hallway are allowed in a 13 system as well as a 13R system. > > I checked the 2016 first and second draft reports but didn't see any > comments or proposals regarding this, though. > > Is this just wishful thinking on my part, or did someone goof up when they > put the figure in? > > Any thoughts? > > Benjamin Young > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
