Use the standard that applies to a transition boundary between two different application densities. You are transitioning between the application above the mechanical platform to the zero application above the remaining ceiling cavity space.
> On Sep 6, 2019, at 1:05 PM, Bobby via Sprinklerforum > <sprinklerforum@lists.firesprinkler.org> wrote: > > I have an office building with ceiling throughout, non combustible > construction. There is a closet that has no ceiling, walls don't go to deck, > and it has a ships ladder that leads to a 20x20 mechanical platform above the > ceiling, also of non combustible construction. This platform has 3'-0 knee > walls around it. > > How far past this platform is required to be sprinklered. Because of the open > ceiling stairs closet, does 8.15.23.3. truly apply - if not what does? > > Thank you, > > Bobby Gillett > Seago Fire Protection > 850-217-3899 Pensacola Area Office > > 850-836-2288 Main Office > 850-836-2277 fax > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > <mailto:Sprinklerforum@lists.firesprinkler.org> > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > <http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org>
_______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
