ABSOLUTELY. What is funny is that Unobstructed with structural members less than 3 ft has a spacing limitation of 130SF. That makes perfect sense for trusses with a cumulative negative impact on discharge but why should it be 130 sf for a ceiling with 2x4 stringers? The reason is that after taking 3 cycles to FINALLY define an actual depth for unobstructed / obstructed, the issue of spacing has not been revisited - YET. On my list for next cycle (that being 2022 since we are in the middle of the 2019 cycle).
Roland Huggins, PE - VP Engineering American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives Dallas, TX http://www.firesprinkler.org <http://www.firesprinkler.org/> > On Nov 23, 2016, at 6:18 AM, Ed Kramer <[email protected]> wrote: > > Roland, > > If the structural members extended down below the insulation, but no further > than 4”, would you still consider it unobstructed? More than 4” – obstructed? > > Ed Kramer > Bamford Fire Sprinkler > >
_______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
