Tim, In defense of the committee and its members, NFPA standards state clearly that where terms are not specifically defined in chapter 3, Mirriam Webster Collegiate Dictionary, 11th edition definitions shall be used. Unused mean no storage in this context and the standard does provide protection requirements for situations where fuel fired heaters are present.
Of course, you are welcome to submit language to define unused attic spaces for consideration when the standard is open for public inputs. If we provided a definition for every term used, the NFPA 13 would weigh 10 pounds (4.54 kilos) Bob Caputo, President AFSA On Sat, Jan 15, 2022 at 9:24 AM tstone52--- via Sprinklerforum < [email protected]> wrote: > The building is new wood frame with insulated roof deck over the Attics. > The > roof pitches range from 8:12 – 12:12. Occupancy is Hotel, 3 story built > into > hillside with full Attic. This fully insulated Attic shall remain above 40° > F. which would allow installation of wet pipe system. > > > > Two air handling units (1 at each end of the Attic) will be suspended from > the Roof. Each unit occupies about 160 SF of area in an Attic of about > 9,400 > SF. These AHUs will have propane fired furnaces. I have already spoken with > Mechanical Engineer and he has suggested that the Fire boxes could be > replaced with forced hot water coils if needed. There will be service > platforms built underneath and around these AHUs for servicing only. No > Walls, Service doors and ladder from floor below only to access the AHUs. > No storage and Public will not have access. > > > > Could this be considered “Unused Attic”? I have laid out sprinkler > coverage > using QR listed heads in accordance with NFPA 13, 10.2.4.2 and Table > 10.2.4.2.1(a) and 10.2.6.1.4. I believe this layout should also qualify for > Ordinary Hazard per Table 10.2.4.2.1(b), 2022 edition. > > > > I wish NFPA would define “Unused Attic”. This term is used in NFPA 13 so > why > not define it. Or do I treat the entire Attic spaces as “Mechanical Room”? > > > > Thank you advance. > > > > Regards, > > G. Tim Stone > > > > G. Tim Stone Consulting, LLC > > NICET Level III Engineering Technician > > Fire Protection Sprinkler Design > > and Consulting Services > > > > 117 Old Stage Rd. - Essex Jct., VT. 05452 > <https://www.google.com/maps/search/117+Old+Stage+Rd.+-+Essex+Jct.,+VT.+05452?entry=gmail&source=g> > > CELL: (802) 373-0638 > > <mailto:[email protected]> [email protected] > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > -- Bob Caputo, CFPS *President* *American Fire Sprinkler Association* p: 214-349-5965 ext124 w: firesprinkler.org <https://www.facebook.com/firesprinkler.org/> <https://twitter.com/afsa/status/1039528345367732224> <https://www.linkedin.com/company/american-fire-sprinkler-association-afsa-/> <https://www.instagram.com/firesprinklerorg/> *Train a safer, more efficient workforce.* By enrolling your employees in the AFSA Apprenticeship Training Series for Sprinkler Fitters <https://www.firesprinkler.org/WWW/Education/Apprentice_Training/WWW/Education/Apprenticeship_Training.aspx?hkey=e88ef09e-d74c-407f-abcd-995aff866149>, you will reap the benefits of a qualified, professional installation crew. Well-trained employees will work smarter, increasing your company's productivity and, in turn, its profits. Learn more <https://www.firesprinkler.org/WWW/Education/Apprentice_Training/WWW/Education/Apprenticeship_Training.aspx?hkey=e88ef09e-d74c-407f-abcd-995aff866149> . _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
