Actually, it likely is about to become Todd's call :) And I just want to elaborate that the areas outside the dwelling unit are designed to a handful (4?) of #13 criteria, but this is way different than designing to #13 in its entirety. For example, 13R has no requirement for hose streams. Neither do the areas outside the dwelling units. But if you were to design the areas outside the dwelling units to #13, you'd be dragging in hose allowances, the tank would have to meet NFPA #22, the UG #24, and a host of other criteria that the #13R TC never dreamed relevant and that's why they only dragged in the handful of criteria from 13, not the whole standard.
And John, I remember David B grimacing when he had to design a -what, 6 story, or 7? Story dorm to #13R cause the AHJ said that was all that was needed. University of Omaha road trip- ah, the benefits and drawbacks to working for a national concern. That was back in maybe late 80's, early 90's? So we've had this misapplication for a LONG time. Maybe as long as the single sensing lines for fire AND jockey pumps :) ARGH- one of my competitors still does this. glc -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of A.P.Silva Sent: Thursday, May 28, 2009 12:06 PM To: [email protected] Subject: RE: 13 & 13R - same building In a 13R building the areas outside the dwelling units are required to be designed to 13. So many confuse this and specify 13R for the residential areas and 13 for others. I find this happens very often. You need to find out if this was the intent of the specs. Personally, I'd say the building should be 13. However, it is not my call or yours. Tony -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Todd Williams Sent: May 28, 2009 5:44 AM To: [email protected] Subject: 13 & 13R - same building I know this has been bantered around before, but I am still a little confused. I have been asked to quote a building where the 1st floor is a church and the upper 2 floors are apartments. The spec calls for the 1st floor to be 13 and the upper floors 13R. To me this doesn't make sense since 13 is a property standard and 13R is life safety. Is there any situation where this is allowed? Todd G. Williams, PE Fire Protection Design/Consulting Stonington, Connecticut www.fpdc.com 860.535.2080 _______________________________________________ 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)
