AI got this one right. Regards,
Dale F. Wingard, SET Designer Commercial/Marine Division NICET IV #76284 Water-based Systems 3751 Joy Springs Drive, Mobile, Alabama 36693 o: 251.661.1275 | c: 251.509.7108 | HillerFire.com [Logo Description automatically generated with low confidence] From: Ron Greenman <[email protected]> Sent: Wednesday, October 8, 2025 2:53 PM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]> Subject: [Sprinklerforum] Re: Fire station EXTERNAL EMAIL - This email was sent by someone outside of Hiller. According to AI it was changed (upgraded) in the 2022 edition to OH2. OH1 in previous editions. I no longer have the array of NFPAs available that I used to have so can't verify the AI but here's exactly what I got from a Google swatch question: "... before 2022, apparatus bays—and by extension, fire stations—were listed as Ordinary Hazard Group 1 (OH1) by NFPA 13, Standard for the Installation of Sprinkler Systems. This classification changed with the publication of the 2022 edition of NFPA 13, which now classifies automobile parking and showrooms as Ordinary Hazard Group 2 (OH2). " On Wed, Oct 8, 2025 at 12:24 PM Brett Peters <[email protected]<mailto:[email protected]>> wrote: I believe that if you go back a few editions parking garages were Ordinary Hazard GrI and most Apparatus Bays were also listed as OHI but in the new editions of NFPA 13, I'm not sure which edition it changed in, parking garages are now listed as Ordinary Hazard GrII. The requirement for the Apparatus Bau to be OHI is probably an old specification brought forward and hasn't been updated to OHII Thanks Brett Peters General Manager Installation & Design Proudline Fire Protection Services Ltd. [email protected]<mailto:[email protected]> 780 490 7602 office ext 202 780 490 7605 fax 780 777 0568 cell 780 718 2676 24h Visit us at www.proudline.ca<http://www.proudline.ca/> On Wed, Oct 8, 2025 at 1:17 PM Parsley Consulting <[email protected]<mailto:[email protected]>> wrote: Having a bit of confusion. A project is to follow the 2022 edition of NFPA 13. The apparatus bays of a fire station have been designated on the plan as ordinary hazard, group 1. When I look at the examples in §A.4.3.3.2, it seems to me that those spaces would be similar to (2) "automobile parking garages", or (14) "machine shops", or (24) "repair garages." This would make the space similar to ordinary hazard group 2, which increases the required density from 0.15 gpm/ft² to 0.20 gpm/ft². Am I looking this incorrectly? Any help greatly appreciated. sincerely, -- Ken Wagoner, SET Parsley Consulting 3002 Younger Drive Harrisonville, Missouri 64701-3909 Phone: (760) 745-6181 Visit the website<https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fwww.parsleyconsulting.com%2f&c=E,1,Y5zKJKPEh1mBEBqSR-VE9cUKl5y-eyP8BpvmE_5j9ZqW2eJbNphYzrCMBZ-2YuX6d-RRkHI4gQ1FV-cvOeCfRC58uZS9NiToZv2mx7909oCqLvCW_n5hDHeK&typo=1> _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org To unsubscribe send an email to [email protected]<mailto:[email protected]> _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org To unsubscribe send an email to [email protected]<mailto:[email protected]>
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