This is based upon % of openings and setbacks to property lines and not means of way?
From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> On Behalf Of Fpdcdesign Sent: Tuesday, September 25, 2018 2:52 PM To: Sprinklerforum <sprinklerforum@lists.firesprinkler.org> Subject: Re: Exposure protection of large windows. Steve, The owner and architect had an engineer review and design/spec this system. I assume they looked at the building code and established criteria. However, what they came up with is a 74 nozzle open deluge system that has to be included with the sprinkler design. And the locations are not correct so I have no idea what the final count will be. Approximately 2/3 of it I haven’t found any exposure. I submitted to the contractor to send an RFI saying it is outside of the scope of NFPA 13. We shall see what happens. (There are other RFIs as well. Unfortunately out here, no one hires independent FPEs to prepare specs. They are all part of larger firms and quite a few of their engineers are plumbers with a copy of 13. Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT 860-535-2080 (ofc) 860-553-3553 (fax) 860-608-4559 (cell) On Sep 25, 2018 at 1:06 PM, <Steve Leyton <mailto:st...@protectiondesign.com> > wrote: This is a perfect example of where the owner and architect need to step up and establish what the CODE requires before they ask the sprinkler designer to prepare plans according to the referenced standard(s). One of the reasons I started my firm was to address this kind of insidious scope creep. You are NOT the code consultant of record and they’re trying to get you do figure out how to meet the fire resistive construction criteria that’s required by code or subjectively by the building official for free. There is obviously not a prescriptive solution here (at least not that you or I can see, right?) so I would throw back to the architect via an RFI that states, “No prescriptive solution exists for this condition in referenced codes and standards. Please specify design criteria for window opening protectives.” Just my grumpy 2¢ … SL From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Fpdcdesign Sent: Monday, September 24, 2018 9:59 AM To: Sprinklerforum Subject: Re: Exposure protection of large windows. Some of each. Example: 15 ft wide window with center 5 ft operable (tilt). I believe original window. Building circa 1920 (I believe). Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT 860-535-2080 (ofc) 860-553-3553 (fax) 860-608-4559 (cell) On Sep 24, 2018 at 12:39 PM, <Steve Leyton <mailto:st...@protectiondesign.com> > wrote: Fixed glazing or operable windows? From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Fpdcdesign Sent: Monday, September 24, 2018 9:39 AM To: Sprinklerforum Subject: Exposure protection of large windows. I am looking at a project which is the conversion of an old mill. The spec calls for exposure protection on the windows in some areas. One issue I am running into is that the exposure protection table (7.8.8.4 - 2010) only covers up to 12’-0” wide windows. I have several that range from 12-6” to 15’-0” wide. Any thoughts or experience on protecting wider windows? Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT 860-535-2080 (ofc) 860-553-3553 (fax) 860-608-4559 (cell) _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org <mailto:Sprinklerforum@lists.firesprinkler.org> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org <mailto:Sprinklerforum@lists.firesprinkler.org> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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