To counter management stating they’ll control storage one inspector in King Co used to keep clippings of bodies of murdered persons found in self-storage units.
Not a tack I would take. It does make clear that control of storage does not happen. Best. Bruce > On Jul 26, 2018, at 14:45, Steve Leyton <st...@protectiondesign.com> wrote: > > Well, we USED to do them as OH2 all the time and then the pendulum swung to > EH and there’s been a measure of subjectivity to it since then. Most of our > work is in CA so the few we’ve worked on over the past 3 or 4 years have been > very conservatively enforced. By coincidence, our design manager’s father is > the long-time director of construction for one of the largest self-storage > developers in the Southwest and their corporate standard was raised to EH 2 > just to head off the conflicts that were becoming commonplace with sprinkler > plan reviews. The EH2 classification can be found in the 15.2.2.1 decision > tree the directs you to 15.2.2.6(a) Column B for Stable, Exposed Expanded > Group A. If the AHJ sees it as Unstable that commodity drops to .30 but if > it’s cartoned then the values become EH2 and EH1. If you’re used to > designing for OH2, your first and logical reaction is, Wha-WHAT??? > > But we tend to think about how WE would do stuff and as a current short-term > client of a self-storage facility I’m picturing mixed household goods, some > padded furniture, a couple mattresses and a mix of other stuff that includes > NO hazardous materials of FCLs. However… MANY small businesses now use > self-storage instead of leasing larger premises with storage or warehouse > facilities on site. There are furniture stores nationwide that keep all > their mattresses in self-storage cells – that’s decidedly NOT mixed household > goods. In our building is another tenant that makes specialized and > custom-fitted Pelican cases – impact resistant plastic with dense foam > liners. Also, NOT mixed goods. So there is a very solid case to be made > for providing an adequate level of protection for plastics. > > The challenge is that it’s almost impossible to optimize spacing in > self-storage and the average coverage area might end up being 60 s.f. per > sprinkler or less and you have a ton of sprinklers operating in the model. > What I’ve done successfully in some cases is fall back on the old “double > density” approach with .20/1500 and then .4 over the three or four most > demanding cells. It’s always worked and reasonably addresses concerns over > adequacy of the density to control/contain a fire that might have much higher > release rate, but that is localized to a very limited area. We don’t see > whole floors full of mattresses in these things but we most certainly do see > individual units where the fire load very clearly exceeds “moderate” as would > normally be classified as OH2. > > My 3½¢, > Steve > > > > From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] > On Behalf Of Kyle.Montgomery > Sent: Thursday, July 26, 2018 1:19 PM > To: sprinklerforum@lists.firesprinkler.org > Subject: RE: [EXTERNAL] RE: Self storage warehouses > > We’ve done several as OH 2 as well. > > But I have always wondered what the realistic adequate level of protection > would be. The ones we usually deal with have partial-height partitions with > “burglar bars” separating the units, which allows the heat to spread across > the deck relatively unimpeded. I’ve wondered if this would activate adjacent > sprinklers before the adjacent units start to catch fire. And I’ve wondered > if QR or SR sprinklers are better (or if it even makes a difference). > > Is anyone aware of any fire modeling or burn tests done for these types of > units? > > -Kyle M > > From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] > On Behalf Of Art Tiroly > Sent: Thursday, July 26, 2018 1:05 PM > To: sprinklerforum@lists.firesprinkler.org > Subject: [EXTERNAL] RE: Self storage warehouses > > They will allow car storage with fuel in the tank. > Metal partitions will easily transmit heat to the adjacent unit. > No propane tanks. > Corp allowed to store overflow stock or equipment. > 40,000 SF in low bay. > Corridors will have drop ceilings with pendant sprinklers. > > > Art Tiroly > ATCO Fire Protection > 24400 Highland Rd CLE 44143 > 216-621-8899 > 216-570-7030 cell > > > > From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] > On Behalf Of Fpdcdesign > Sent: Thursday, July 26, 2018 3:39 PM > To: Sprinklerforum > Subject: Re: Self storage warehouses > > Make sure they have restrictions on things like rubber tires, flammable > liquids, etc. > > Todd G Williams, PE > Fire Protection Design/Consulting > Stonington, CT > 860-535-2080 (ofc) > 860-553-3553 (fax) > 860-608-4559 (cell) > > > On Jul 26, 2018 at 3:31 PM, <Art Tiroly> wrote: > > Storage units 200 -600 SF per unit covered by metal screen at 10 Ft. AFF with > metal sided partitions. > Household goods, mattresses, foam cushions on sofas. Class 3-Class A plastic. > Roof sprinklers at 14FT is a pipe schedule system from 1956. > This is a change of occupancy. > > The existing pipe schedule system is not adequate for the hazard. > The sprinkler system should be revised and brought up to NFPA design density. > Is the appropriate design based on Class A plastic or something less? > I could not find anything in archives. > > Art Tiroly > ATCO Fire Protection > 24400 Highland Rd CLE 44143 > 216-621-8899 > 216-570-7030 cell > > > > Virus-free. www.avast.com > _______________________________________________ Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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