Also note that there is a crazy 3 ft MINIMUM separation between the tees. Fortunately the 2016 ed has deleted it. This was not an issue with the older standard single tee design but the double tee (2 tees about a ft apart then another set of tees at a wider spacing) is problematic.
Roland Roland Huggins, PE - VP Engineering American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives Dallas, TX http://www.firesprinkler.org <http://www.firesprinkler.org/> > On Aug 10, 2015, at 6:52 AM, Eric V. Tysinger <[email protected]> wrote: > > With regards to options; > #1 - deflector 1-6 inches below the member to a maximum of 22" > #2 - deflector at or above the bottom of the member to a maximum of 22" (obs > rules from 8.6.5.1.2 must be followed) > #3 - Installed in each bay to a maximum of 12" > #4 - Wood joists (NA) > #5 - Concrete tees, deflector 1" below the member with no maximum deflector > to ceiling distance. > > You're not limited to #5, but you can use it if #1 or #2 will not work due to > the depth of the tee. > > Hope that helps. > > > > > Eric V. Tysinger _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
