Very good point. Since this hybrid thingy doesn’t cleanly fall within any of the listed exceptions, it should be sprinklered.
Ed From: Brett Peters <[email protected]> Sent: Thursday, July 31, 2025 9:01 AM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]> Subject: [Sprinklerforum] Re: Nonconventional Egress Stair I would agree with Rick, if you look at how 8.15.3.2 reads; "In noncombustible stair shafts", so with that in mind if you have a stairway that is not a vertical shaft then can this section of the code be applied to this stairway? I would say no and would refer back to 8.1.1* The requirements for spacing, location, and position of sprinklers shall be based on the following principles: (1) Sprinklers shall be installed throughout the premises. 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/> Proudline now offers ULc listed monitoring services, please contact [email protected]<mailto:[email protected]> for more information On Thu, Jul 31, 2025 at 7:49 AM Rick Matsuda <[email protected]<mailto:[email protected]>> wrote: I didn’t see the diagram when I first replied. Now that I’ve seen the diagram, it really is an interesting question. You said it’s about 170-feet long so there’s about 33-feet between each doorway spread over five elevation changes between the floor. The requirement for having a sprinkler at top and bottom works well for a straight vertical shaft. It’s still difficult to get a true picture of what this stairway looks like, but as a former AHJ, I would ask you to add four sprinklers, one above each doorway opening on the 2nd to 5th floors. I don’t have any code justification for asking you to do this other than it’s a “feels good” issue. It’s only four additional sprinklers and you already have piping available on each landing. I don’t know what I would ask you to do if this was a 20-story building…but we’ll discuss this if it ever happens. Rick On Jul 31, 2025, at 7:48 AM, Ed Kramer <[email protected]<mailto:[email protected]>> wrote: Good question. Seems to be a hybrid between an exit stair and exit passageway. But 99% of IBC stuff is above my paygrade. Ed From: Rick Matsuda <[email protected]<mailto:[email protected]>> Sent: Wednesday, July 30, 2025 8:54 PM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]<mailto:[email protected]>> Subject: [Sprinklerforum] Re: Nonconventional Egress Stair Would this be considered an exit hallway? On Jul 30, 2025, at 8:50 PM, Ed Kramer <[email protected]<mailto:[email protected]>> wrote: Brett, I’ve gone through 8.15.3.2 multiple times and don’t see this. Please give a reference. Thank you, Ed From: Brett Peters <[email protected]<mailto:[email protected]>> Sent: Wednesday, July 30, 2025 5:33 PM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]<mailto:[email protected]>> Subject: [Sprinklerforum] Re: Nonconventional Egress Stair NFPA 13 says top, bottom and every floor landing 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/> Proudline now offers ULc listed monitoring services, please contact [email protected]<mailto:[email protected]> for more information On Wed, Jul 30, 2025 at 4:02 PM Ed Kramer <[email protected]<mailto:[email protected]>> wrote: We’re working on a multi-story non-high-rise project that has 1 conventional stair shaft and 1 that’s not so conventional. Well, certainly not conventional around these parts. Applicable standard is NFPA 13 (2016). It just doesn’t seem right to sprinkler only the very top and the very bottom (potential storage). The horizontal length of this thing is in the ballpark of 170’. And if that’s not enough, there will be 4 or 5 45° bends located between the stair doors. Thoughts? Ed Kramer Bamford Fire [image005.png] _________________________________________________________ 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]> _________________________________________________________ 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]>
_________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org To unsubscribe send an email to [email protected]
