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] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Johnson, Duane (NIH/OD/ORS) [C] Sent: Wednesday, December 31, 2008 11:34 AM To: [email protected] Subject: Sidewall Sprinklers 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 _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
