Yeah, you're probably right about one of us making stuff up and according to the tee shirt in my closet it must be me! But then my wife gave me that shirt, so who is she to accuse me of making stuff up. I did check, however and there is nothing in the Standard or Annex that addresses Utility or Mechanical Rooms. Those words are not in the standard. But just for the sake of conversation among ...well, you know. What kind of stuff would the people in a 22,000 sq ft off building store in a 750 sq sf mechanical room? We're talking about a space 25' by 30' with at least SOME non-combustible mechanical equipment in it, so if you put 50 extra boxes of copy paper, a box or two of complaint forms, some personnel records, 4 or 5 cases of Kirkland rolled paper products (tp), and a dozen or so of Old Joes worn out foam padded office chairs in the mechanical room, you still wouldn't exceed the fuel load per sq ft for the general office area. And keep in mind, it is an office area, and fork lifts are really hard on the carpet. So how does that get to a different occupancy classification. Just askin? Mark at Aero 602 820-7894
-----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Steve Leyton Sent: Tuesday, May 05, 2015 4:22 PM To: [email protected]; [email protected] Subject: RE: Light & OH1 Hazard From Same Riser LOL! One of us is making stuff up ... and I think it's you, of course. I'm on the road and don't have my books with me but I'm pretty sure that utility and/or mechanical rooms, service areas, etc. are classified in Chap 5 (annex) as OH1. In practice, those rooms get filled with crap and we have an unspoken and uncodified responsibility to not turn a blind eye methinks. I have heard over and over from fire officials that their concerns regarding such spaces, electrical rooms, etc. is due to years of inspections where misc. storage is found. No reason not to practically apply something we already know ... SL -----Original Message----- From: Sprinklerforum on behalf of [email protected] Sent: Tue 5/5/2015 4:09 PM To: [email protected] Subject: RE: Light & OH1 Hazard From Same Riser Well that sounds good, but did you just make that up? Or is it written somewhere? I seem to remember reading somewhere that a mechanical room could be classified the same as the occupancy it served. Light for light, ordinary for ordinary, etc. or maybe I just made that up? Mark at Aero 602 820-7894 -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Steve Leyton Sent: Tuesday, May 05, 2015 3:14 PM To: [email protected]; [email protected] Subject: RE: Light & OH1 Hazard From Same Riser It's capacity for, and the historical practical application of such spaces as storage rooms. SL -----Original Message----- From: Sprinklerforum on behalf of [email protected] Sent: Tue 5/5/2015 3:12 PM To: [email protected] Subject: RE: Light & OH1 Hazard From Same Riser Just out of curiosity, what makes the mechanical room of an office building be ordinary hazard? Mark at Aero -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Jack Carlson Sent: Tuesday, May 05, 2015 2:51 PM To: [email protected] Subject: RE: Light & OH1 Hazard From Same Riser John, You should not have an issue with the design as described. Light and ordinary are commonly mixed, no separate supply main is necessary. Jack W. Carlson, SET Triple "A" Fire Protection Office - 251.649.2034 Fax - 251.649.2037 Cell - 706.247.5050 -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of John Allen, CET, CFPS Sent: Tuesday, May 05, 2015 5:38 PM To: [email protected] Subject: Light & OH1 Hazard From Same Riser I apologize for such a simple question, but I would greatly appreciate some guidance: I have a 22,000 sqf light hazard office space with a 750 sqf mechanical room that I've identified as ordinary hazard 1. The entire ceiling space is an open 14' concrete beams and roof deck, and the mechanical room is separated by sheetrock and self-closing doors. The riser is in the mechanical room and I have 7 upright sprinkler heads fed off the cross main pipe feeding the light hazard office space. What code allows me to design this way or must I create a separate riser feed for each hazard? Best Regards, John Allen, CET, CFPS President AFS: Allen Fire & Security Your Safety is Our Success Direct: 770.715.7261 | Office: 770.723.7280 Ext 2 | Fax: 678.894.4180 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
