Sean, I found this in the archives: ***** Can a horizontal sidewall sprinkler be installed in the center of a room (flat, smooth clg) provided sprinkler coverage is added behind the sidewall? In other words, not installed near a wall or soffit.
In reality a sidewall installed 4" to 6" below the ceiling (away from a wall/soffit) should activate in similar fashion as exposed pendents and uprights (1" - 12" below clg). If code permits "exposed" sidewalls to be installed below roll up doors without soffits, can't an "exposed" sidewall be installed elsewhere? Is there anything in the listing of a sidewall that requires the sprinkler be installed on a wall or soffit? Are there any ROP/ROC responses from the committee that would help answer the question? Thoughts? Duane Johnson, PE Program Manager Division of the Fire Marshal (Support Contractor) Office of Research Services National Institutes of Health 301-496-0487 Duane, NFPA 13(2007) 8.7.4.1.2 addresses the location of vertical and horizontal sidewalls in relation to the wall that they are projected from. Sidewall sprinklers cannot be positioned in the center of a room as a pendant. Dale F. Wingard, SET Design Manager Triple "A" Fire Protection, Inc. 251.649.2034 [email protected] ******** Brad -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Richard Carr Sent: Tuesday, December 22, 2015 10:19 AM To: [email protected] Subject: RE: can sidewalls be installed when not located next to a wall? Under overhead doors is only place I know is acceptable without a wall. Sent from my T-Mobile 4G LTE Device -------- Original message -------- From: [email protected] Date: 12/22/2015 11:14 AM (GMT-05:00) To: [email protected] Subject: can sidewalls be installed when not located next to a wall? Hi All, I can't check the forum archives right now because the website isn't loading for me for some reason. Based on NFPA 13 2013. Can sidewalls be installed when not located next to a wall? Assuming we meet the all the minimum/maximum spacing requirements, vertical distance below the deck requirements, standard spray sprinklers, ordinary hazard occupancy, noncombustible construction. Walking from branchline to branchline left to right, can I install upright, upright, sidewall facing right, sidewall facing left, upright, upright. With spacing from upright to upright equal to 12ft, spacing from upright to backside of sidewall of 6ft, and spacing from sidewall face to sidewall face equal to 20ft. Is this acceptable? The first thing most people say is "will the sidewall be next to something like a baffle or installed with the pipe in a soffit?" As of now, no, there is nothing behind the sidewalls. If something is required, please help me find the direction in the code for this requirement and design parameters. Because right now all I am finding is a lot of "grey" area that people can interpret whichever way suits their needs. I'm looking for "black and white" if it is in there. If it's only "grey", opinions are greatly appreciated. Thank you for your time and help! Thanks, Sean VG _______________________________________________ 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
