That changed significantly with the 2022 edition I believe, but you do need to verify you fall within the design parameters that allow less than 8’ now in obstructed construction. You may also have a variance fight on your hands depending on how knowledgeable the AHJ is.
Mike Morey CFPS 3229 • NICET S.E.T. 123677 Project Manager • Fire Protection Group Shambaugh & Son, LP an EMCOR Company 7614 Opportunity Drive • Fort Wayne, IN • 46825 direct 260.487.7824 / cell 260.417.0625 / fax 260.487.7991 email mmo...@shambaugh.com [Image] ________________________________ From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> on behalf of Mike Hairfield via Sprinklerforum <sprinklerforum@lists.firesprinkler.org> Sent: Wednesday, December 29, 2021 2:22:05 PM To: sprinklerforum@lists.firesprinkler.org <sprinklerforum@lists.firesprinkler.org> Cc: Mike Hairfield <fsl...@msn.com> Subject: Re: ESFR - Minimum Remote Area Size BE ADVISED - This email originated outside EMCOR. I don’t believe ESFR sprinklers can be installed in a concrete tee building. Minimum spacing is 8’-0” and what is the deflector distance. Mike Sent from my iPhone > On Dec 29, 2021, at 2:11 PM, Kyle.Montgomery via Sprinklerforum > <sprinklerforum@lists.firesprinkler.org> wrote: > > I'm dealing with an existing concrete tee building that the owner wants to > retrofit with an ESFR system. Heads will be closely spaced due to the > obstruction caused by the tees; 5-foot on center. Does NFPA 13 have a minimum > remote area size, or is it just 12 heads? > > -Kyle M > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > https://urldefense.com/v3/__https://na01.safelinks.protection.outlook.com/?url=http*3A*2F*2Flists.firesprinkler.org*2Flistinfo.cgi*2Fsprinklerforum-firesprinkler.org&data=04*7C01*7C*7C2243e8f422f447e9e98808d9caff0ba5*7C84df9e7fe9f640afb435aaaaaaaaaaaa*7C1*7C0*7C637764019046194532*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000&sdata=pbf*2BoThaf77nppLZONRpZrs9AwSkwAHo*2FPdId21LXD8*3D&reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJQ!!FaxH778!NzMSyKoOPF0fSP344Ewdv_LldrjMfhTyqeUk_2k9XQydY-FALWAV0oh3jdq7t6-J$ _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org https://urldefense.com/v3/__http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org__;!!FaxH778!NzMSyKoOPF0fSP344Ewdv_LldrjMfhTyqeUk_2k9XQydY-FALWAV0oh3jSJGCOJe$ This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
