Another very good perspective Ron. As I like to say "if this was all that easy, there would be a bunch if high school boys doing this, and we'd all be looking for jobs!" Mark at Aero (loaned that to Rod)
----- Original Message ----- From: Ron Greenman [mailto:[email protected]] Sent: Thursday, July 25, 2013 02:57 AM To: [email protected] <[email protected]> Subject: Re: Hazard classification I'd also suggest that much of the classification might have as much to do with the types people in the building as the contents. Stores all have this in common: transient populations in narrow aisles without line of sight to exits. On the plus they are typically sober and alert. B occupancies mostly folks familiar with their surroundings, sober, alert and with a well practiced route of egress and a clear line of sight. Look at A and R occupancies and the deferentiations and those nuances all seem to be associated with the condition of the occupants, how many square feet per each, level of likely sobriety, familiarity with the premises.... On Wed, Jul 24, 2013 at 6:31 PM, Rod DiBona <[email protected]> wrote: > Bingo... Well said .... Would be nice to always have prescriptive formula > but truth is that sometimes a principle has to look at a formula and say > you are the least not necessarily the best...Kinda like the low bidder > > Rod at Rapid (stole that from Mark) > > -----Original Message----- > From: [email protected] [mailto: > [email protected]] On Behalf Of > [email protected] > Sent: Wednesday, July 24, 2013 6:35 PM > To: [email protected] > Subject: RE: Hazard classification > > I think your observation is very valid about Mercantile being a broad > brush, but my observation would be that the design criteria for OH2, OH 1, > and Light hazard, is fundamentally "overkill" to the point where oil > filters or wedding rings matter not. But look at the difference in the > design of an Ace Hardware vs a Home Depot. 99% of the products either store > sells is available in both and one is designed to .2/1500 and the other > sometimes at 1.6/1200 in effect. If you see Lucy, tell her she has some > splainin to do!! But in reality, it's not the oil filter or the wedding > ring, it is the fact that Ace has a lay-in ceiling at 12 feet above the > floor and everything on shelves seven feet high or less, and HD has a roof > at 28 feet and a warehouse stored above a retail store. So you would be > correct to say a Home Depot is a retail store, but it's also an S 1 > occupancy in accordance with IBC. > Clear as mud? > Mark at Aero > > -----Original Message----- > From: [email protected] [mailto: > [email protected]] On Behalf Of Todd - Work > Sent: Wednesday, July 24, 2013 5:06 PM > To: [email protected] > Subject: Re: Hazard classification > > I have often wondered (and have unsuccessfully argued) about an auto parts > store and a jewelry store having the same design criteria. To the NFPA 13 > fundamentalist, they are both mercantile (which, incidentally, is an > adjective - my guess is that the rest of the occupancy descriptions in NFPA > 13 are nouns) so therefore OH2. > > Todd G Williams, PE > Fire Protection Design/Consulting > Stonington, CT > www.fpdc.com > > > _______________________________________________ > 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 > -- Ron Greenman Instructor Fire Protection Engineering Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 [email protected] http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) _______________________________________________ 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
