Au contraire. 1m SSF bldg= 1,000,000 900k mezz = 900,000 That's 1.9m SF, isn't it? Scroll down and re-read the question. Sounds like you need to go back to school, I know just the place :) https://www2.gotomeeting.com/register/400693658
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ryan Peterson Sent: Tuesday, July 21, 2009 3:26 PM To: [email protected] Subject: RE: open grate flooring It would actually be 1.8m sq.ft. not 1.9m sq.ft. (900,000 * 2 = 1.8 x 10^6) But what's a 100,000 sq.ft. Hope that makes it more palatable. ;P Ryan Peterson -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of George Church Sent: Tuesday, July 21, 2009 2:02 PM To: [email protected] Subject: RE: open grate flooring Right here :) https://www2.gotomeeting.com/register/400693658 glc -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Rod DiBona Sent: Tuesday, July 21, 2009 1:42 PM To: [email protected] Subject: RE: open grate flooring Where do I sign? Rod DiBona -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of George Church Sent: Tuesday, July 21, 2009 10:47 AM To: [email protected] Subject: RE: open grate flooring Would a payment from a customer in the order of $3m make that go down easier? -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Keith Pepin Sent: Tuesday, July 21, 2009 12:06 PM To: [email protected] Subject: RE: open grate flooring We are both on the same page. I guess I just can't swallow 1.9m sprinklers. Thanks guys. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of George Church Sent: Tuesday, July 21, 2009 12:01 PM To: [email protected] Subject: RE: open grate flooring I'm not sure what we're missing or you're missing. If you have a million SF building with 900,000 SF of open grate mezz below it, you've got 1.9m SF of sprinklers. glc -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Keith Pepin Sent: Tuesday, July 21, 2009 11:52 AM To: [email protected] Subject: RE: open grate flooring Everything both of you are saying is understandable and applicable, Just picture this; 2 layer system with 6 foot vertical separation w/ open floor grating 75% plus open. Just does seem that was the intent. Perhaps AHJ should be consulted? -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of George Church Sent: Tuesday, July 21, 2009 11:44 AM To: [email protected] Subject: RE: open grate flooring As for skipping, you'd be required to use intermediate level sprinklers, or head guards with umbrellas. Prevents cold-soldering from roof sprinklers. glc -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Thom McMahon Sent: Tuesday, July 21, 2009 11:33 AM To: [email protected] Subject: RE: open grate flooring If you read the handbook it says pretty much what G said about storage dust mats, and as far as the "Cat Walk" goes, I'd say the structural members that are supporting the cat walk, Mezz. and landing will also work to obstruct or deflect the sprinkler spray. As far a skipping and over discharge, it would be no worse than if these were 4+' wide ducts. The committee must think that this is acceptable, since they haven't required that these heads be added to the hydraulic design for all the years this has been in the standard. Roland? Anyone on committee to comment? Thom McMahon, SET Firetech, Inc. 2560 Copper Ridge Dr P.O. Box 882136 Steamboat Springs, CO 80488 Tel: 970-879-7952 Fax: 970-879-7926 The 3rd scenario would require 2 layers of sprinkler near the ceiling for half the building footprint. I have concerns what it would do to actual sprinkler activation, skipping, over discharge...etc Subject: RE: open grate flooring If it helps you internalize it, picture some storage atop the catwalk or mezz as an obstruction to spray; or a floor mat of some sort acting as a dirt/duct barrier also blocking spray. You don't see em now, but they appear later in occupancy phase. glc _______________________________________________ Sprinklerforum mailing list http://lists.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 http://lists.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 http://lists.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 http://lists.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 http://lists.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 http://lists.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 http://lists.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 http://lists.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 http://lists.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 http://lists.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)
