Would the 40,000 sqft limit apply to the area including the aisles? Of the 65,000 sqft of area the racks cover only about half is actually rack. So if there is only 32,500 sqft. of rack one system should do it? 13 doesn't address the issue (that I can find) and maybe that's why. I thought I read something a few years ago about limiting the size but I can't remember where I saw it.
Thanks for the reply, Ron Fletcher Aero Automatic Phoenix, AZ -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jim Z Sent: Thursday, January 14, 2010 12:02 PM To: [email protected] Subject: Re: In-rack system zoning The way I understand it 40,000 sf is your limit. * 8.2.1 *The maximum floor area on any one floor to be protected by sprinklers supplied by any one sprinkler system riser or combined system riser shall be as follows: (3) Extra hazard (a) Pipe schedule - 25,000 ft2 (2323 m2) (b) Hydraulically calculated - 40,000 ft2 (3716 m2) (4) Storage-High-piled storage (as defined in 3.9.1.13) and storage covered by other NFPA standards - 40,000 ft2 (3716 m2) *3.9.1.13 *High-Piled Storage. Solid-piled, palletized, *rack storage*, bin box, and shelf storage in excess of 12 ft (3.7 m) in height. -Jim On Thu, Jan 14, 2010 at 11:48 AM, Fletcher, Ron <[email protected]>wrote: > We have 65,000 sqft of rack storage that requires in-rack sprinklers. > The racks span an area that is protected by 4 roof systems. Can we use a > single system to supply the in-rack and have all 65,000 sqft on a single > valve? > > I thought that I read somewhere once upon a time that in-rack systems > had to be zoned similar to roof systems i.e. 40,000 sqft max etc... > > Ron Fletcher > Aero Automatic > Phoenix, AZ > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected]<to%3ASprinklerforum-request@ firesprinkler.org> > (Put the word unsubscribe in the subject field) > _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.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 [email protected] http://fireball.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)
