you START with the criteria for open racks then apply the solid shelving criteria to offset them not being open. The ceiling density is primarily addressing the single top tier plus a small amount of heat going up the front of the racks. This approach is also applicable to ESFR.
Roland Huggins, PE - VP Engineering American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives Dallas, TX http://www.firesprinkler.org On Mar 17, 2014, at 6:47 AM, [email protected] wrote: > > > Roland, > > Thank you for your response. > > There seems to be a contradiction here. Table 16.2.1.3.2 states that it is > for racks "Without Solid Shelves". > > > > Is this a code error? > > > > > Bill Menster > WFM Consulting Inc. > > ----- Original Message ----- > From: "Roland Huggins" <[email protected]> > To: [email protected] > Sent: Friday, March 14, 2014 5:25:14 PM > Subject: Re: Solid Shelf Rack Storage Ceiling Density? > > Welcome aboard > > In a nutshell you take a ceiling density that is allowed for an open rack > while addressing all the variable and then add in-racks as required by > 16.1.6. That includes open rack arrangements with in-racks and a lower > ceiling density as long as 16.1.6 arrangement meets or exceeds the open rack > in-rack arrangement. You also get the additional reduction due to in-rack > sprinklers exceeding that required for open racks dictated by 16.2.1.3.4. > This is hidden in section 16.2.1 (see below). I tried to have it moved to > the 16.1.6 section but I guess that makes it too easy so the TC rejected it. > That battle is not over. > > 16.2.1.3.5 For solid shelf rack storage, Table 16.2.1.3.2 shall be used to > establish the density/area criteria and in-rack sprinklers shall be installed > in accordance with 16.1.6. > > > > > > Roland Huggins, PE - VP Engineering > American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives > Dallas, TX > http://www.firesprinkler.org > > > > > > On Mar 14, 2014, at 11:03 AM, [email protected] wrote: > >> >> >> >> Hi, Newbie to the forum here. >> >> >> >> I have Solid Shelf Rack Storage (not shelf storage), Class 2 commodities, >> 15' high. 13-16.1.6 indicates rack sprinklers are required at each level, >> however, I cannot find the density required for the ceiling sprinklers. Can >> anyone help? >> >> >> >> Thanks >> >> >> >> >> Bill Menster >> WFM Consulting Inc. >> >> >> _______________________________________________ >> 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
