I'll admit the WS head listing might have changed since last I read it but last edition doors or other openings wouldn't fly. First off with a glass door you have an air gap around the door. Perhaps one could put a hard rated door in. But again I don't think openings are permitted of any type.
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 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Tuesday, September 22, 2009 4:16 PM To: [email protected] Subject: RE: Water curtains for windows According to it's listing it provides the equivalent to a 2 hour separation when used on glass windows. If you had a glass door in the wall it wouldn't be any different than the rest of the wall. The sprinkler has very specific installation guidelines in order to meet the listing. Tyco Model WS. Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive PO Box 491, Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [email protected] http://www.ch2m.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Autry, David Sent: Tuesday, September 22, 2009 5:06 PM To: [email protected] Subject: RE: Water curtains for windows So you're telling me that there is a sprinkler that can replace a 2-hour fire-rated door? David Autry Plans Examiner Nebraska State Fire Marshal's Office 246 S. 14th Street Lincoln, NE 68508 402-471-9659 402-471-3118 fax www.sfm.ne.gov ** Note new email address: [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Tuesday, September 22, 2009 4:03 PM To: [email protected] Subject: RE: Water curtains for windows It's within NFPA 13 and there is a specific sprinkler designed and approved which is reported to provide equivalency of a 2 hour separation according to its listing. We've trod this ground before, it's doable and permitted by published Codes and Standards. Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive PO Box 491, Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [email protected] http://www.ch2m.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Autry, David Sent: Tuesday, September 22, 2009 4:58 PM To: [email protected] Subject: RE: Water curtains for windows Somewhere, somehow, somebody told some architects and engineers that they can use water curtains in lieu of fire-rated construction. David Autry Plans Examiner Nebraska State Fire Marshal's Office 246 S. 14th Street Lincoln, NE 68508 402-471-9659 402-471-3118 fax www.sfm.ne.gov ** Note new email address: [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jerry Costello Sent: Tuesday, September 22, 2009 3:48 PM To: [email protected] Subject: RE: Water curtains for windows We have found that on occasion the arch will get a building modification to utilize sprinklers in lieu of a particular "fire rating" at a window wood panel etc... Normally the modification is quite specific as to one side or both. We have in these cases always used the 6' spacing rules for water curtain. Jerry M Costello set Advance Fire Protection Ph 714-526-2231 Fax 562-691-5482 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Chris Cahill Sent: Tuesday, September 22, 2009 1:17 PM To: [email protected] Subject: RE: Water curtains for windows Now I'm curious. What did you find? I didn't think there was anything about glass in 13. What Tim referenced is for vertical openings. Not applicable to glass walls. There is some stuff in the atrium section of IBC but that's very specific to atriums and wouldn't apply to other openings. 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 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bobby Gillett Sent: Tuesday, September 22, 2009 2:51 PM To: [email protected] Subject: RE: Water curtains for windows Nevermind, we found it. Sorry about that...after all it is one of those days. Bobby Gillett Sr. Project Manager Key Fire Protection, Inc. (731) 424-0130 office (731) 424-9285 fax (731) 267-4853 cell [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bobby Gillett Sent: Tuesday, September 22, 2009 2:49 PM To: [email protected] Subject: Water curtains for windows It's one of those days. We have a job calling for a water curtain (sprinklers on both sides of a window), Where is the direction from NFPA for this? I know TYCO makes a window sprinkler, but isn't there direction for standard sprinklers in NFPA somewhere? Thank You, Bobby Gillett Sr. Project Manager Key Fire Protection, Inc. 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