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)
