I will be surprised if you find a definitive answer anywhere to this question in a book. Let me know if you do, I have been trying to get a decision (long story) on this issue in existing storage buildings here for years.
All depends on the "opinion" of the person with the most stripes sitting in the chair at the time. I think that the statement mentioned below "sprinklers hurt the vents more than vice versa" though a significant factor with respect to cold smoke in an atrium smoke exhaust situation, is not true with sprinklers and vents in storage occupancies, but I have also been too busy read all the latest so... Also, not so sure that vents in a storage have anything to do with exit distance in modern codes. Rich Richardson Seattle Fire Department -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Brad Casterline Sent: Thursday, November 04, 2010 14:40 To: [email protected] Subject: RE: smoke vents for retrofit Matt, I don't know, Codes is too busy, (I have clocked out, but don't know much) but one guy said occupancy change is like a new building, and that's what you asked. NIST did some good studies of auto vent/sprinkler interaction, you probably know-- if they have to be together, at least sprinklers hurt vents more than vice versa. For a phenomenal, oops, I mean nominal fee, you could get some timed egress analysis done-- here is the marketing pitch-- "it will take a lot of time and money, but there is no guarantee of success" -----Original Message----- From: Brad Casterline [mailto:[email protected]] Sent: Thursday, November 04, 2010 3:25 PM To: [email protected] Subject: RE: smoke vents for retrofit Matt, I will ask the code people here in a little while, but my 1st thought is- was any kind of life safety analysis done? I think some manual vents would be required, but auto vents would be based on egress lengths. -----Original Message----- From: Matt Grise [mailto:[email protected]] Sent: Thursday, November 04, 2010 2:53 PM To: '[email protected]' Subject: smoke vents for retrofit If an existing building is retrofit with an area/density system to protect high piled storage, does it need to have smoke vents and draft curtains added as described in the IFC, or is that just new construction? I looked around in the IFC/IBC/IEBC books, but I could not find anything that would exempt the vents and curtains. Does anyone recall any way to avoid them (other than ESFR)? Matt Grisé PE*, LEED AP Sales Engineer Alliance Fire Protection *Licensed in KS & MO 913.888.0647 ph 913.888.0618 f 913.927.0222 cell www. AFPsprink.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) _______________________________________________ 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) _______________________________________________ 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)
