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)
