Did you use to be able to place sprinklers on either side of the ridge if you maintained 3' from the peak compared to now were you have to be within 12" of the ridge line?
From: Travis Mack [mailto:t.m...@mepcad.com] Sent: Thursday, July 20, 2023 4:03 PM To: Discussion list on issues relating to automatic fire sprinklers <sprinklerforum@lists.firesprinkler.org> Subject: [Sprinklerforum] Re: Attic Sprinkler spacing If I recall correctly, it was the 2002 edition that changed the spacing criteria to what we have today. Prior to that, you just had to do 130 sq ft for combustible concealed spaces with members <36" on center. You had to maintain 3' vertically from the peak and 12" from the deck for unobstructed construction. Travis Mack, SET M.E.P.CAD | 181 N. Arroyo Grande Blvd. #105 I Henderson, NV 89074 www.mepcad.com<http://www.mepcad.com/> | m: 480.547.9348 AutoSPRINK | AutoSPRINK FAB | AutoSPRINK RVT | AlarmCAD From: Bobby Welch <bobby.we...@koorsen.com<mailto:bobby.we...@koorsen.com>> Sent: Thursday, July 20, 2023 12:37 PM To: Discussion list on issues relating to automatic fire sprinklers <sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>> Subject: [Sprinklerforum] Attic Sprinkler spacing I have ran across an attic dry system that has standard heads spaced 11'-11" parallel and 10'-11" perpendicular to the truss. It is my understanding that the sprinkler heads cannot be spaced more than 10' apart perpendicular to the truss. This system was installed in 1994 and I do not have access to NFPA before 2002. Does anyone know of a code that would of allowed this spacing back then? Bobby Welch | Sprinkler Systems Designer KOORSEN FIRE & SECURITY 8090 N Dixie Dr, Dayton, OH 45414 P 937.641.8403 | Ext. 0318 | M 937.594.8457 bobby.we...@koorsen.com<mailto:bobby.we...@koorsen.com> | www.koorsen.com<http://www.koorsen.com> 24x7x365 Service: 937.660.7050 | servic...@koorsen.com<mailto:servic...@koorsen.com>
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