I think if they are CLOSETS in the traditional sense- They have a layer of drywall between em, they have ceilings, and doors that are usually shut- then that's compartmentalization and 2 heads are fine in the corridor I picture running between rows of em.
If they are partition walls that stop, or the walls are chicken wire- then that's a subdivided, but not compartmentalized, storage area and OH 1 if it's an 8' ceiling is probably fine. I recall a lot of small offices and the way they were configured, a news office had 1" lines feeding 20 heads each- since I only had to flow 1 or 2 of them per line. FM job, approved and installed back in '86. Compartmentalization should be rewarded. 'Course its great for w mere CET's- we simply apply the cookbook and omit the heads since we're not required to know more then #13 says to know. Todd, having those extra PE letters, could be taken to task if it burns down since he should know better than the committee since he's a RDP. And Mike B- you sure don't have to apologize to me for expressing yourself and letting your passion for proper sprinkler work show thru - along with frustration! I think I did that on this very forum once a couple years ago. Maybe twicet. TGIF- go home to your sprinklered domiciles and be safe- Don't light your shots of stress management before downing them. glc -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Greg McGahan Sent: Friday, February 22, 2008 5:39 PM To: [email protected] Subject: RE: Gaggle of closets I feel certain that this is not what the code intends. In the case you describe we would consider it Ord. Hazard and calculate it as one room without omitting the heads. In virtually all of the cases like this we have seen, the owner has put chainlink over the tops of the closets and held the walls down to keep the deflectors 18" above them. Have a great weekend, Greg McGahan Living Water Fire Protection, LLC 1160 McKenzie Road Cantonment, FL 32533 850-937-1850 Fax: 850-937-1852 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Todd Williams - FPDC Sent: Friday, February 22, 2008 4:05 PM To: [email protected] Subject: Gaggle of closets I am looking an apartment building which is to be designed according to NFPA 13. On the first level, there is a room which contains 55 - 3'x5' tenant storage closets (mostly filled with shelves). These would need to be sprinklered, which is fine, but the issue comes in the hydraulics. Section 14.4.4.4.2 states that closets with a single sprinkler may be omitted from the calculation. There could be up to 47 closets in the remote area. I have used this exception numerous times, but never in this quantity. The standard says nothing to the contrary, so I could eliminate 47 sprinklers in the remote area because they are in closets? Is there something I am overlooking? Todd G. Williams, PE Fire Protection Design/Consulting Stonington, Connecticut www.fpdc.com 860.535.2080 _______________________________________________ .org (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
