Joe, While the AHJ is referring to 11.1.2, see NFPA 13 (2016)23.4.4.2.4. The annex provides for the steps to increase the flow.
Jack W. Carlson, SET -----Original Message----- From: Sprinklerforum <[email protected]> On Behalf Of Joe Burtell via Sprinklerforum Sent: Thursday, February 11, 2021 12:47 PM To: [email protected] Cc: Joe Burtell <[email protected]> Subject: Multiple System Calculation I have a situation where an engineer is telling me I have to calculate a wet and dry system together because neither space meets the 1500 s.f minimum. I have a penthouse mechanical room OH 1 (WET) of 1014 s.f. and an adjacent room OH1 (DRY) of 469 s.f. I have calculated each room separate of each other. There is a full-height wall with a door that separates the rooms. The wall and door are not fire rated, so the large room method is out. This does not make any sense to me. Any sections that would require this to be done. He is saying 11.1.2 of NFPA 13 2016 requires it. I argue exception #2 says it does not apply. Best regards, *Joe Burtell, SET, CFPS* [image: Burtell Fire_Small] Phone | Fax | Mobile| Text *406-204-4653 <++1-406-204-4653>* 116 N. 11th Street | Billings, MT 59101 Email: [email protected] Web Site: http://www.burtellfire.com *“**The bitterness of poor quality remains long after the sweetness of low price is forgotten.**”* *NOTICE:* The information contained in this e-mail transmission is intended only for use of the individual or entity named above. This e-mail transmission, and any documents, files, previous e-mail transmissions or other information attached to it, may contain confidential information that is legally privileged. If you are not the intended recipient of this e-mail transmission, or the employee or agent responsible for delivering it to the intended recipient, you are hereby notified that any disclosure, dissemination, distribution, copying or other use of this transmission or any of the information contained in or attached to this e-mail is strictly prohibited. If you have received this e-mail transmission in error, please immediately notify us by return e-mail transmission and destroy the original e-mail transmission as well as its attachments without reading or saving it in any manner. Thank you. _______________________________________________ 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
