Thanks Roland. I guess I did get to this conclusion to check with AHJ before reading your e-mail. :-) Always works.
My thought was that I almost can treat this as storage on one level of rack because of such a low storage and protect only with ceiling sprinklers. And I promise it will be resolved before bid. Thanks to everyone for help. Anna Reich ---- Roland Huggins <[email protected]> wrote: > You're mostly there. Chap 13 applies equally to storage (no pile > limit or % of building) when based on storage height. A warehouse > with Class I-IV up to 12 ft follows chap 13. The issue of in-racks > is not identified by SprinkCode because chap 13 reverts to chap 11. > and the occupancy hazard approach (which as a side bar even the QR > reduction applies for the referenced warehouse). The solid shelf / in- > rack requirement is a general requirement for chap 16 but 16.2.1.2 .1 > send you to chap 13 for the criteria and nothing in chap 11 or 13 > requires solid shelf / in-rack protection. Could this be better > addressed (ok to say addressed at all), of course. Keeping in mind > that this is intended to be addressed as an Occupancy Hazard Approach > issue, helps to focus the discussion. Granted on a full warehouse, > I'd be concerned about the solid shelving but in a low ceiling > basement especially with the rack along only one wall, I can't say > that poses the same level of concern and would contend that the > standard does not require them. > > As a note of interest, this was raised as a question to the TC during > the ROC meeting with limited and mixed opinions (too late in the game > to actually do anything to the standard). As I've learned, you can't > necessarily guess with assurance where a herd of 30 votes will go so > it will be interesting next cycle to see the answer to the flood of > proposals on this topic. > > Bottom line, you best have this discussion with the AHJ before > submittals (before a binding bid is even better). > > Roland > > On Mar 12, 2009, at 7:55 AM, <[email protected]> wrote: > > > Would this not meet the definition of Miscellaneous Storage? > > > > 3.9.1.14* Miscellaneous Storage. > > -Storage that does not exceed 12 ft (3.66 m) in height and is > > incidental to another occupancy use group. > > [you said top shelf was at 5ft.] > > -Such storage shall not constitute more than 10 percent of the > > building area or 4000 ft2 (372 m2) of the sprinklered area, > > whichever is greater. > > [is the building at least 20,001 sq. ft. and sprinklered?] > > -Such storage shall not exceed 1000 ft2 (93m2) in one pile or area, > > and each such pile or area shall be separated from other storage > > areas by at > > least 25 ft (7.62 m). > > [you stated the shelving area is approx. 680 sq. ft.] > > > > > > > > Linens = Class III or Class IV commodity. > > > > If you meet the criteria for the Misc. Storage definition it would > > seem reasonable that the room could be protected by ceiling > > sprinklers alone. Based on NFPA 13, 2007, Table 13.2.1, for Class > > IV, storage <10ft. you're looking at OH2 with 250 gpm hose and no > > in-rack sprinklers and this covers shelf type configuration. > > > > Also in A.8.6.6 it mentions shelves along the wall which are not > > directly below sprinklers do not have the 18" clearance restriction. > > > > > > > > Craig L. Prahl, CET > _______________________________________________ > 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)
