It is amazingly easy when a sprinkler designer and an architect or P.E. to have a failure to communicate when limited combustible or non-combustible are discussed. A sprinkler designer naturally reaches for the definitions in NFPA 13, Chapter 3. Architects in particular tend to look in the building code. Of course as referenced in NFPA 13, chapter 3 is the correct place to look in this case.
Best. Bruce Verhei > On Jun 15, 2018, at 08:25, Micah Davis, SET <[email protected]> wrote: > > Thank you, Bob. I didn't consider that. I'll look into and throw it in the > mix. It may be something the stakeholders would buy into. Their concern is > not being able to access the concealed sprinklers for maintenance. If we > kept the sprinkler localized to only the area with exposed framing, that area > has a acoustic tile ceiling. > > Micah Davis, SET > NICET #124745 > Water Based Systems Layout, Level IV Dynamic Fire Designs > > Mail: [email protected] > Mobile: 931-242-1299 > www.dynamicfiredesigns.com > Dynamic Fire Designs • 13063 County Line Rd., Box #87 • Spring Hill • FL • > 34609 > > This message is confidential. It may also be privileged or otherwise > protected by work product immunity or other legal rules. If you have received > it by mistake, please let us know by e-mail reply and delete it from your > system; you may not copy this message or disclose its contents to anyone. The > integrity and security of this message cannot be guaranteed on the Internet. > > > From: Sprinklerforum <[email protected]> on > behalf of Bob <[email protected]> > Sent: Friday, June 15, 2018 10:18 AM > To: [email protected] > Subject: RE: Concealed Space > > Micah, > > This sounds like a situation where using the “Localized Protection of Exposed > Combustible Construction or Exposed Combustibles” might be appropriate. > 8.15.1.5 (13 ed): > > If the exposed combustibles are in the vertical partitions or walls around > all or a portion of the enclosure, a singlerow of sprinklers spaced not over > 12 ft apart nor more than 6 ft from the inside of the partition > > shall be permitted to protect the surface. The first and last sprinklers in > such a row shall not be over 5 ft from the ends of the partitions. > > In this scenario you would only provide sprinklers along the exposed walls. > Based on what you have described, my opinion is that sprinklers are required > in at least a localized manner. > > > > Thank you, > > > > Bob Knight, CET III > > 208-318-3057 > > > > From: Sprinklerforum [mailto:[email protected]] > On Behalf Of Micah Davis, SET > Sent: Friday, June 15, 2018 7:35 AM > To: SprinklerForum > Subject: Concealed Space > > > > I have a project that has a concealed space with exposed wood wall framing. > I added concealed space sprinklers per 8.15.1.2.1. The engineer is telling > me to remove them stating that, since the walls are not load bearing, they > are not structural walls. He then references Appendix A for 8.15.1.2.1 that > states the requirements to protect the space does not apply for > "nonstructural" wood. Has anyone seen this before? What is the opinion of > the Forum? > > > > I will, of course, defer to the engineer, but I am recommending that the > contractor I'm working with get a letter from the engineer clearly stating > that they are requesting the sprinkler not be installed. > > > > > > Micah Davis, SET > NICET #124745 > Water Based Systems Layout, Level IV > > Dynamic Fire Designs > > > > Mail: [email protected] > Mobile: 931-242-1299 > www.dynamicfiredesigns.com > > Dynamic Fire Designs • 13063 County Line Rd., Box #87 • Spring Hill • FL • > 34609 > > This message is confidential. It may also be privileged or otherwise > protected by work product immunity or other legal rules. If you have received > it by mistake, please let us know by e-mail reply and delete it from your > system; you may not copy this message or disclose its contents to anyone. The > integrity and security of this message cannot be guaranteed on the Internet. > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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