Of course, the one and only annex link I didn’t click on was the one that had the good graphic.
I think this would still fall back on the building code however to determine if the separation is significant enough to make the structure count as two separate buildings. If the intent is to not double count standpipes on each side of the horizontal exit it would probably be best to have a specific section stating as such in 10.6.1.1. Sincerely, Eric Rieve, SET Rieve Fire Protection From: Steve Leyton <[email protected]> Sent: Wednesday, April 3, 2024 11:57 AM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]> Subject: [Sprinklerforum] Re: Standpipe Calculations Yes, a building separation does divide the hydraulic demands to what is required on each side of the separation. See Fig. A.10.6.1.2.3.1 (2024 ed). The foregoing is my opinion only and does not represent NFPA or the NFPA 14 Technical Committee, nor intended to serve as an interpretation of the standard. Protection Design and Consulting Steve Leyton, President T | 619.255.8964 x 102 | www.protectiondesign.com<http://www.protectiondesign.com/> 2851 Camino Del Rio South | Suite 210 | San Diego, CA 92108 Fire Protection System Design | Consulting | Planning | Training From: Rick Matsuda <[email protected]<mailto:[email protected]>> Sent: Wednesday, April 03, 2024 8:29 AM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]<mailto:[email protected]>> Subject: [Sprinklerforum] Re: Standpipe Calculations Here’s a thought which may be out way of line. The 2-hour separation wall in the middle of the building was installed in lieu of an additional stairway. So technically there would have been three stairways and only three standpipes. Does NFPA 14 allow you to install one standpipe by the separation and supply two hose valves on each level, one on each side of the wall, instead of two separate standpipes? If this is allowed then you’ll need to calculate only 1000-gpm. During a fire condition, the fire department should be hooking up to only the hose valve on the safe non-fire side. Just my crazy opinion. Rick Matsuda On Apr 3, 2024, at 10:06 AM, Tstone52 <[email protected]<mailto:[email protected]>> wrote: The building code calls for buildings more than 3 stories to have Standpipes. 13R has nothing to do with it. G Tim Stone On Apr 3, 2024 at 9:50 AM, <Fpdcdesign<mailto:[email protected]>> wrote: 13R buildings are not considered to be fully sprinklered. On Apr 3, 2024 at 9:45 AM, <Shawn Foor<mailto:[email protected]>> wrote: Why would you do 1250 if it’s a fully sprinklered building? Shawn Foor, SET FOOR DESIGN, LLC 10208 E 98TH ST TULSA, OK 74133 P:918-237-1400 On Wed, Apr 3, 2024 at 08:43 <[email protected]<mailto:[email protected]>> wrote: Asking this on behalf of Rowe Sprinkler Systems (Temporally Un-Retired) We have a 4-story modular apartment building sprinklered in accordance with NFPA 13R with allowed exceptions, with 4 standpipes. The standpipes are connected at the 1st floor level. One each at the ends of the L shaped building and two at the approximate mid-point on either side of a 2-hour separation wall with self-closing, rated doors in the corridor. The question is for purposes of calculating the standpipe can these be treated as two separate buildings? For example, 250 gpm at the far end of the 4th floor, 250 gpm at the far end of the 3rd floor and 250 gpm at the at the connecting point of the middle standpipe, for a total of 750 gpm. Or do we have to calculate the additional standpipes up to 1250 gpm. Available water is the issue. Richard L. Mote CET Rimrock Design Services, LLC Middleburg, PA 17842 Mobile 570-541-2685 EMAIL [email protected]<mailto:[email protected]> WEB: www.rimrockdesignservicesllc.com<http://www.rimrockdesignservicesllc.com> _________________________________________________________ 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]>
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