Yes - building is a single occupancy hazard. So the area next to the opening and the area under the opening could be considered separate? I was concerned that it might be considered one area with a ceiling that varies in height. The opening is less than 1500 sf. So any 1500 sf operating area that included the opening would also include areas outside of the opening.
Matt Grisé PE*, LEED AP, NICET II Sales Engineer Alliance Fire Protection 130 w 9th Ave. North Kansas City, MO 64116 *Licensed in KS & MO 913.888.0647 ph 913.888.0618 f 913.927.0222 cell www. AFPsprink.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Roland Huggins Sent: Tuesday, April 01, 2014 11:07 AM To: [email protected] Subject: Re: quick response area reduction with vertical openings I would say yes and no. It all depends on your selection of a design basis. The area below the opening has a tall ceiling so that PORTION of the building has a design basis that is not reduced. The remainder of the building can use its own design basis that includes the reduction or follow the other. Naturally we are assuming the entire building is a single occupancy hazard classification. Roland Roland Huggins, PE - VP Engineering American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives Dallas, TX http://www.firesprinkler.org On Apr 1, 2014, at 8:33 AM, Matt Grise <[email protected]> wrote: > I am looking at a building that has 12' ceilings (per floor). In one area > there is a vertical opening to the second floor that is protected with > closely spaced sprinklers and draft stops. Is it still acceptable to use the > quick response area reduction or does the opening to the second floor count > as a ceiling in excess of 20'? > > If it is acceptable to use the quick response reduction, can you apply the > reduction to the length of closely spaced sprinkler heads that must be calc'd? > > Matt Grisé PE*, LEED AP, NICET II > Sales Engineer > Alliance Fire Protection > 130 w 9th Ave. > North Kansas City, MO 64116 > > *Licensed in KS & MO > > 913.888.0647 ph > 913.888.0618 f > 913.927.0222 cell > www. AFPsprink.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
