I would be concerned about freezing. 20 degrees for a couple of days may or may not cause a burst depending on the temp before and after, and also depending on the building insulation.
The code says that if the pipe is subject to freezing (which this pipe is) it shall be heated. A freeze plug could prevent or delay activation in a fire, and a burst would cause water damage. I would not want to try to explain to a court why I did not think I needed to heat/freeze protect the system. 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 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Eric Shelton Sent: Thursday, November 12, 2009 3:19 PM To: [email protected] Subject: RE: Gulf Coast Where does it say 40dF? My copy of 13 says that were piping is subject to freezing it shall be heated to 40dF. Eric J. Shelton, PE Senior Fire Protection Engineer Associate Hankins and Anderson Consulting Engineers 4880 Sadler Road Suite 300 Glen Allen, VA 23060 v: (804) 521.7105 f: (804) 217.8520 http://www.haengineers.com Do you really need to print this e-mail? -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Cliff Whitfield Sent: Thursday, November 12, 2009 4:05 PM To: [email protected] Subject: RE: Gulf Coast Chris, Believe me, I live here (in the panhandle of Florida), it gets cold here at times. I can remember plenty of times growing up that it got in the teens. Besides, I believe 13 says "reliably maintained at or above 40° F " so it doesn't really matter how long or how low it gets. I would not think of designing a system around here and not have freeze protection if it were not in a conditioned space. Cliff Whitfield, SET President Fire Design, Inc. [email protected] www.fire-design.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Chris Cahill Sent: Thursday, November 12, 2009 1:20 PM To: [email protected] Subject: Gulf Coast Note I'm a little north of the Gulf Coast if this question sounds a little odd. Would you be looking at a dry system in an unheated warehouse within say 5 miles of the northern Gulf Coast? Seriously I know it can get cool by our standards down there but it ain't cold. But for how long? Even a day or 2 in the mid 20's would that cause a freeze up problem in a 100,000 sq.ft. plus building? Just wondering what the norm is for dealing with cool weather. I know I've been in the Tampa and Orlando area and seen plenty of exterior wet risers not to mention the double checks off the UG. My question is a little more LA specific. Chris Cahill, P.E. Fire Protection Engineer Sentry Fire Protection, Inc. 763-658-4483 763-658-4921 fax Email: [email protected] Mail: P.O. Box 69 Waverly, MN 55390 Location: 4439 Hwy 12 SW Waverly, MN 55390 _______________________________________________ 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)
