Isn't this lower soffit going to have the high end bottles of liquor displayed on glass shelves below? If so, the head in the soffit will be obstructed by the top shelf. Then couldn't you treat it as piece of furniture built into a wall and have the upper sprinklers spaced to the back of the wall under the soffit without a sprinkler in the lower soffit, assuming that the shelving continues the full length of the soffit?
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Greg McGahan Sent: Wednesday, September 23, 2009 7:31 AM To: [email protected] Subject: RE: bar backs BUT (A) Where a vertical change in ceiling elevation within the area of coverage of the sprinkler creates a distance of more than 36 in. (914 mm) between the upper ceiling and the sprinkler deflector, a vertical plane extending down from the ceiling at the change in elevation shall be considered a wall for the purpose of sprinkler spacing as shown in Figure 8.6.4.1.1.3(A). According to the new rule I believe that we cannot use the obstruction rules. Greg McGahan Operations Manager Living Water Fire Protection 1160 McKenzie Road P.O. Box 877 Cantonment, Florida 32533 (850) 937.1850 | Fax (850) 937.1852 | Cell (850) 554.3231 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bryan Dann Sent: Wednesday, September 23, 2009 9:25 AM To: [email protected] Subject: RE: bar backs Take a look at Figure 8.6.5.1(b) page 13-57 NFPA 13(07) If head can be 4'6 away from obstruction your ok. Bryan A. Dann Dannba Design Services, LLC Fire Sprinkler Designs Office: (740) 363-5878 Cell: (740) 803-0967 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Greg McGahan Sent: Wednesday, September 23, 2009 9:59 AM To: [email protected] Subject: bar backs I have seen dozens if not hundreds of similar situation without sprinklers and just wanted to get the professional spin on it: The area behind a bar where the liquor is kept has a ceiling height of 9-6 and the remainder if the Bar is at 13'-0". Of course the "soffit" is about 1'-9" wide. My thoughts are that a head is required due to the difference in elevation being greater than 3'-0". Any other thoughts? Greg McGahan Operations Manager Living Water Fire Protection 1160 McKenzie Road P.O. Box 877 Cantonment, Florida 32533 (850) 937.1850 | Fax (850) 937.1852 | Cell (850) 554.3231 [email protected] _______________________________________________ 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) _______________________________________________ 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) -- ExchangeDefender Message Security: Click below to verify authenticity http://www.exchangedefender.com/verify.asp?id=n8NEkkh9029366&[email protected] _______________________________________________ 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)
