I think I got that, but as we are the dreaded engineers and not installers so good or bad we rely on the installers to get the signs right. I do like to make sure we are creating a document that reflects feasibility of construction and maintenance. In this case we will have good access to the low points as we can feed the limited access areas from the “full” attic. That would also let us inspect the sprinkler heads from the “side” from the full attic area without resorting to the markings on the gypboard!
Scott and I go way back to the days of Mountain Star so I take what he says to heart! (And the rest of you too! the experience of many sure beats even 40 years of doing this alone) David T Williams – Lead MEP/FP Engineer LHB, Inc. | PERFORMANCE DRIVEN DESIGN. From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> On Behalf Of Ron Greenman via Sprinklerforum Sent: Thursday, August 15, 2019 2:56 PM To: sprinklerforum@lists.firesprinkler.org Cc: Ron Greenman <rongreen...@gmail.com> Subject: Re: Attic/Concealed space access to sprinkler heads I didn't mean to suggest that you didn't need access to low points. You do, and you need to put the sign on them or next to them, but you also need to note where they are on the general info sign. Too many low points drain get lost in the insulation. I think it was Bob that said inspections per 25 only had to be made from the floor (or that's what he meant 🙊), but Scott makes some good points about the difficulty that might be encountered for other activities. Ron Greenman rongreen...@gmail.com<mailto:rongreen...@gmail.com> 253.576.9700 The Universe is monstrously indifferent to the presence of man. -Werner Herzog, screenwriter, film director, author, actor and opera director (1942-) On Thu, Aug 15, 2019 at 12:41 PM David Williams via Sprinklerforum <sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>> wrote: Nope I think 6/12 top surface 4/12 lower.. David T Williams – Lead MEP/FP Engineer LHB, Inc. | PERFORMANCE DRIVEN DESIGN. From: Travis Mack <tm...@mfpdesign.com<mailto:tm...@mfpdesign.com>> Sent: Thursday, August 15, 2019 2:40 PM To: sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org> Cc: b...@firebyknight.com<mailto:b...@firebyknight.com>; David Williams <david.willi...@lhbcorp.com<mailto:david.willi...@lhbcorp.com>> Subject: Re: Attic/Concealed space access to sprinkler heads What is your attic slope? Is <2:12 then you need specially listed sprinklers for the areas <36” deep. Travis Mack, CFPS, CWBSP, RME-G, SET 480-505-9271 MFP Design, LLC www.mfpdesign,com<http://www.mfpdesign,com> Send large files to MFP Design via: https://www.hightail.com/u/MFPDesign Sent from my iPhone On Aug 15, 2019, at 12:02 PM, David Williams via Sprinklerforum <sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>> wrote: Thanks.. I didn’t see it either but I wanted to see if there were other opinions/options. David T Williams – Lead MEP/FP Engineer LHB, Inc. | PERFORMANCE DRIVEN DESIGN. From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org<mailto:sprinklerforum-boun...@lists.firesprinkler.org>> On Behalf Of Bob Knight via Sprinklerforum Sent: Thursday, August 15, 2019 1:59 PM To: sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org> Cc: Bob Knight <b...@firebyknight.com<mailto:b...@firebyknight.com>> Subject: RE: Attic/Concealed space access to sprinkler heads NFPA 25 does not require the inspection of sprinklers in concealed spaces, so that should not be an issue. Thank you, Bob Knight, CET III Fire by Knight, LLC 208-318-3057 From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of David Williams via Sprinklerforum Sent: Thursday, August 15, 2019 12:43 PM To: sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org> Cc: David Williams Subject: Attic/Concealed space access to sprinkler heads I have a project intended to be fully sprinkled with a combustible attic that tapers from 2’ to 4 ‘ without being filled to within 2 inches of the deck with insulation. So I am planning on a dry pipe system with standard heads as the design of the attic does not allow the effective use of special application attic sprinklers. The questions are: whether inspection access is required to be provided, is it prudent to do so at the heads, or can the locations just be noted on the gypsum mounted to the bottom chord of the open web trusses. TIA David T Williams, PE – Lead MEP/FP Engineer 21 West Superior Street, Suite 500, Duluth, MN 55802 Direct 218.279.2436 | Cell 218.310.2446 LHBcorp.com<http://www.LHBcorp.com> LHB, Inc. | PERFORMANCE DRIVEN DESIGN. _______________________________________________ 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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