Eric, Why not look at using the room design method for OH - 11.2.3.3.5 (3). As long as you meet all of the requirements this is a simpler alternative.
Cliff Whitfield, SET President Fire Design, Inc. [email protected] www.fire-design.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Shelton, Eric Sent: Tuesday, May 11, 2010 10:53 AM To: [email protected] Subject: Multiple adjustments to remote area How are multiple adjustments made to a remote area that includes a 700 sf mechanical room (OH2) with a 2.5:12 sloped ceiling greater than 20' high that is surrounded by offices (LH) with 10' level ceilings? The mechanical room that is separated from the rest of the building by non-rated, but smoke-resistant, walls. I'm thinking it would be reasonable to use all 700 sf of the mech room but reduce the other 2300 sf by 40%, making 700 + (0.6)(2300) = 2080 sf. Since only the mech room ceiling is sloped it doesn't make sense to apply an increase to the entire area. I know I have to use the higher hose stream and duration per 11.1.5.2 because my higher density area is over 400 sf. Eric J. Shelton, PE Senior Fire Protection Engineer AECOM Design Direct 540.857.3282 AECOM 10 South Jefferson Street, Suite 1600 Roanoke, Virginia 24011 T 540.857.3100 F 540.857.3180 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.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 [email protected] http://fireball.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)
