I was picturing this as the bottom chords would be visible in the space. That was why I voted for 130 sq ft max.
Travis Mack, SET MFP Design, LLC "Follow" us on Facebook: https://www.facebook.com/pages/MFP-Design-LLC/92218417692 Send large files to MFP Design via: https://www.hightail.com/u/MFPDesign Sent from my iPhone > On Nov 22, 2016, at 10:50 AM, Roland Huggins <[email protected]> > wrote: > > what Mark said EXCEPT why 130 sf. The ceiling is the insulation. The > structural embers are a different area (just like above a drop ceiling). The > annex states regarding distance below ceiling but it obviously applies across > the board. For instance, if the only combustible construction is the > structural members and they joist are full (and chords covered) does the > space still have to be protected? There was a pubic input submitted on just > this issue. IT passed the table vote but the official ballot has not yet > been processed. > > The rub is the lack of guidance on the robustness of attachment. > > NFPA TC member caveat warranted: not to be considered a formal > interpretation by NFPA or any of its technical committees > > Roland > > Roland Huggins, PE - VP Engineering > American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives > Dallas, TX > http://www.firesprinkler.org > > > >> On Nov 22, 2016, at 8:37 AM, Mark Phillips <[email protected]> wrote: >> >> Insulation is considered ceiling A8.5.4.1 >> 130 spacing >> Use 4.2 heads >> Reduce Remote Area >> Aka >> “What Travis said” >> >> > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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