If the bays created by the beams were not larger than 300 s.f. then it would qualify for obstructed and you could go the 1"/6"/22", but if they are larger then your looking at bay spacing your sprinklers.
Russell Rewis Brown Automatic Sprinklers, Inc. 107C Hemlock Street Valdosta, Georgia 31601 229-244-8130 [EMAIL PROTECTED] -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, July 23, 2008 11:37 AM To: [email protected] Subject: Deflector Distance From Ceiling Forum: I am in need of some clarification and thoughts. Section 8.6.4.1.1 states that sprinkler deflectors for unobstructed construction shall be 1 inch to 12 inches below the ceiling. Section 8.6.4.1.1.3 says the requirements of 8.6.4.1.1 shall not apply for light and ordinary hazard occupancies with ceilings that are non-combustible or limited combustible. I have a concrete ceiling with concrete structural beams that are 18 inches deep and spaced 10 feet on center roughly. By definition, this is unobstructed. Can I place my sprinklers, by code, such that the deflector is more than 12 inches below the ceiling? What is the lowest you can place your deflector if this is the case (we would be no lower than 22 inches, but I am still curious what the limit is)? We can eliminate some sprinklers if we can. If not, the obstruction rules get in the way and we add some sprinklers. Thanks. Andrew Weisfield This email is intended for named recipients only. _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.138 / Virus Database: 270.5.5/1568 - Release Date: 7/23/2008 6:55 AM _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
