There is a landing at each of 11 levels, the stairs are in the center of the tower, with some additional floor space at each landing. The whole thing is of combustible construction so we have sprinklers at each level. It is more an 11 storey tower than a continuous shaft. Also, it is not heated, so we have a dry system to feed all the sprinklers.
David Bitton, ing./Eng. Quest Loss Control Services Inc. Les services de prévention des sinistres Quest 5100, rue de la Savane, bureau 200 Montréal, Québec H4P 1T8 (514) 341-4545 <http://www.questlosscontrol.com/> www.questlosscontrol.com From: Sprinklerforum [mailto:[email protected]] On Behalf Of Prahl, Craig/GVL Sent: February 8, 2018 12:21 PM To: [email protected] Subject: RE: Church Steeple When you say levels, we picture separated floor levels. Is that what you have? But then again it sounds more like a continuous shaft. Are there landings at these levels? How often do they occur? How big are they? Does the stair run up through the center? Craig L. Prahl Fire Protection Group Lead/SME Direct - 864.920.7540 Fax - 864.920.7129 Direct Extension 77540 CH2M is now Jacobs. 200 Verdae Blvd. Greenville, SC 29607 [email protected] <mailto:[email protected]> <http://www.jacobs.com/> http://www.jacobs.com From: Sprinklerforum [mailto:[email protected]] On Behalf Of David Bitton Sent: Thursday, February 08, 2018 12:05 PM To: [email protected] <mailto:[email protected]> Subject: RE: Church Steeple [EXTERNAL] That’s not my situation, as the pitch is strictly at the top level. Imagine an 11 storey tower, roughly 25 x 25 ft, with an 80 ft high peaked roof above it. There is only one sprinkler at the top level, and about 4 sprinklers at each level beneath it. The tower has an open staircase within it so all of the levels are communicating. My question is do I include sprinklers on multiple levels or just one level at a time? David Bitton, ing./Eng. Quest Loss Control Services Inc. Les services de prévention des sinistres Quest 5100, rue de la Savane, bureau 200 Montréal, Québec H4P 1T8 (514) 341-4545 <http://www.questlosscontrol.com/> www.questlosscontrol.com From: Sprinklerforum [mailto:[email protected]] On Behalf Of Roland Huggins Sent: February 8, 2018 10:17 AM To: [email protected] <mailto:[email protected]> Subject: Re: Church Steeple ALONG the pitch of the ceiling(s) that is inside the HORIZONTAL floor area IS one level. That’s why we have the section in 8.6.4.1.3 on steeply pitched ceiling Roland Roland Huggins, PE - Senior VP Engineering American Fire Sprinkler Assn. Dallas, TX http://www.firesprinkler.org <http://www.firesprinkler.org/> Fire Sprinklers Saves Lives On Feb 7, 2018, at 3:58 PM, Fpdcdesign <[email protected] <mailto:[email protected]> > wrote: It's a tough call without seeming the drawing and/or visiting the building. Without NFPA 13 (or other technical source) guidance, it comes down to engineering judgement. Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT <tel:860-535-2080> 860-535-2080 (ofc) <tel:860-553-3553> 860-553-3553 (fax) <tel:860-608-4559> 860-608-4559 (cell) On Feb 7, 2018 at 6:27 PM, < <mailto:[email protected]> David Bitton> wrote: Hello, I have a very tall but narrow church steeple to protect. At the peak, there is a single sprinkler head, with the lower levels having between 2 and 4 sprinklers at each level. I am having a problem determining the heads to include in my design area. The levels are not closed off from each other, so I think that restricting the calculations to one level would not be conservative enough. I have not found any guidance in NFPA 13. I would appreciate your thoughts about this issue. David Bitton, ing./Eng. Quest Loss Control Services Inc. Les services de prévention des sinistres Quest 5100, rue de la Savane, bureau 200 Montréal, Québec H4P 1T8 (514) 341-4545 <http://www.questlosscontrol.com/> www.questlosscontrol.com _______________________________________________ Sprinklerforum mailing list <mailto:[email protected]> [email protected] <http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list <mailto:[email protected]> [email protected] <http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
_______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
