Low clearance areas (ie. garage entrance ramp). A sidewall (or extended coverage sidewall at that) would keep your pipe out of the no hang zone where uprights (or extended coverage uprights) won't permit.
Inaccessible areas. Rather than paying for scaffolding to get you over furniture/storage, why not install a sidewall where ladders/lifts can be used. Granted one can install sidewalls as mentioned above with the installation of a soffit/lintel. But why install the soffit if it is not truly necessary...like the overhead door scenario. And there is the infamous low clearance areas above compact shelving. The idea is being pushed around to install sidewalls where less than 18" clearance is being maintained. It has been presented that sidewalls can develop a spray pattern with less clearance than an upright/pendent. It appears the use of exposed sidewalls is developing...that is if listings permit. Duane Johnson, PE Program Manager Division of the Fire Marshal (Support Contractor) Office of Research Services National Institutes of Health 301-496-0487 -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Monday, January 05, 2009 12:33 PM To: [email protected] Subject: RE: Sidewall Sprinklers Why would anyone want to install a sidewall head exposed in the middle of a room? Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive PO Box 491, Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [email protected] http://www.ch2m.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Roland Huggins Sent: Monday, January 05, 2009 10:55 AM To: [email protected] Subject: Re: Sidewall Sprinklers The only exception to not having a wall, soffit, or beam behind them is when installed UNDER roll-up doors ( as allowed by 8.4.2 (3) Roland On Dec 31, 2008, at 11:37 AM, Dale Wingard wrote: > 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) > _______________________________________________ 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) _______________________________________________ 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)
