For heights over 30’, I believe you are limited to 10’ spacing. You can go up to 11’ to avoid obstructions.
For ceiling heights under 30’ you can do 12’ spacing. You still have 8’ minimum and 100 sq Ft max. Travis Mack, SET MFP Design, LLC "Follow" us on Facebook: https://www.facebook.com/pages/MFP-Design-LLC/92218417692 Send large files to MFP Design via: https://www.hightail.com/u/MFPDesign Sent from my iPhone > On Nov 16, 2017, at 1:00 AM, Tony Silva <[email protected]> wrote: > > > For ceiling heights over 30 feet using ESFR sprinklers, maximum area is 100 > sq.ft. and maximum spacing is 10 feet. NFPA permits the spacing to be > increased up to 12 feet to eliminate obstructions, subject to area > restrictions and adjacent branch lines maintaining the same pattern. This > variance is permitted to "eliminate obstructions". My question is can the > spacing be increased even without obstructions? I would think why not? But as > the text language is specific, thought I will canvass for other opinions. > > Looking at it another way, if the ceiling height is over 30 feet, in a bay > without obstructions, can all of the ESFR sprinklers in that bay be laid out > at 11 feet x 9 feet? > > Tony > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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