Steve,
I do not disagree, just wanted to make the point. Also, if the AHJ accepts it, that would be another route to take. Jeff Hewitt, PE, SET, SFPE (Professional Member) Corporate Engineer Bi-State Fire Protection Corporation 241 Hughes Lane St. Charles, MO 63301 636-946-0011 636-946-5172 (fax) 314-574-6989 (cell) Fire Sprinklers Save lives. Can You Live Without Them? From: Steve Leyton [mailto:[email protected]] Sent: Thursday, July 15, 2010 2:37 PM To: Jeff Hewitt; [email protected] Subject: RE: Small Orifice Sprinklers in Water Curtain Interesting point, but there is arguably no more nor less fire load at the perimeter of a residential compartment where the windows occur, so the hazard group is the same . in theory. Steve Leyton Protection Design & Consulting San Diego, CA From: Jeff Hewitt [mailto:[email protected]] Sent: Thursday, July 15, 2010 12:26 PM To: Steve Leyton; [email protected] Subject: RE: Small Orifice Sprinklers in Water Curtain Steve, Just thinking out loud, and do not have a copy of 13 in front of me.... Aren't closely spaced sprinklers and water curtains listed outside of the occupancy classification section? I am not certain that a water curtain configuration can be classified as "Light Hazard", and if it cannot, then your argument loses validity. Jeff Hewitt, PE, SET, SFPE (Professional Member) Corporate Engineer Bi-State Fire Protection Corporation 241 Hughes Lane St. Charles, MO 63301 636-946-0011 636-946-5172 (fax) 314-574-6989 (cell) Fire Sprinklers Save lives. Can You Live Without Them? -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Steve Leyton Sent: Thursday, July 15, 2010 2:12 PM To: [email protected] Subject: Small Orifice Sprinklers in Water Curtain Scenario: 3-story Light Hazard (Residential) occupancy, fully sprinklered per 13. Situation: Exterior exit stairs are too close to glazed openings in exterior walls and 45-minute window protection is required (from inside out) for several 2'x3' fixed windows on all three floors. Challenge: Can't use window sprinklers because exterior walls are bearing. Am proposing to use water curtain provisions of the building code, and furnish 3 GPM per lineal foot per 13. Question: Since the windows are only 2' wide, and there are up to 3 windows in a cluster, we will have sprinklers at 4' apart in several areas and will be provided a baffle of some sort. I can easily hit my minimum flow rate with small orifice sprinklers and do not see any restriction in 13 regarding orifice size in a water curtain. Since it's all Light Hazard, can anyone think of a reason why we can't use 4.2K pendents? Steve Leyton PROTECTION DESIGN & CONSULTING 2851 Camino del Rio South, Suite 400 San Diego, CA 92108 ------------------------------------------------------------- Ph: 858.751.2930 - ext. 102 Fax: 858.751.2933 Cell: 619.972.5696 _______________________________________________ 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) __________ Information from ESET NOD32 Antivirus, version of virus signature database 5282 (20100715) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __________ Information from ESET NOD32 Antivirus, version of virus signature database 5282 (20100715) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com _______________________________________________ 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)
