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Great info! Love when The List makes me smarter...-----Original Message-----From: Fellippe Galletta [mailto:fellippe.galletta [at] gmail.com] Sent: Friday, July 25, 2014 12:45 PMTo: Charles PerryCc: The FerrariListSubject: Re: [Ferrari] FW: Porsches Lost to a Building FireOn 7/25/14, Charles Perry <charles [at] carolina-sound.com> wrote:Clearly they needed the expertise of our own Fellippe Galletta. Sadly,
per the comments, current codes and inspection processes make it
onerous to try to be preventive about such things...
I'm assuming there was no sprinkler system in the facility, as it would have been noted if it didn't perform properly.A system may or may not have been required. Then you have to factor in the hazards, which an auto repair facility ranks about halfway up the severity of hazard classifications, not a big deal most of the time.The real kicker is tire storage which the article alludes to....and while I haven't dealt with any tire storage personally in my work, I know off hand it is one of the worst types of fires to deal with. It is on par or worse than just about most flammable liquid storage, Group A plastics, which are all pretty bad in their own right. The problem with tires is that they are a nasty fire very resistant to being extinguished, often "deep seated".A lot of how bad tire storage fires can be depends on storage heights, mounting configurations, quantities, etc. but the interesting thing is that how something is "supposed" to be stored can very often have little bearing in how it is actually stored in real life, and a properly engineered system can be undermined because of user error.Water supply can be an issue as well in general, especially if you are in a remote area -- if you have lousy pressure from the municipal water supply, you can always add a fire pump. But if you don't have enough flow in GPM you'll need to add a water storage tank, which costs money. If you figure between 1200-1800 GPM for 90-120 minutes, a lot of water....One way to "enforce" these sort of things is to have the property insured by a good underwriter -- Willis, Chubb, XL for example. FM Global is perhaps the best as they have their own performance criteria that often exceeds building code and NFPA minimums. Codes care about minimal compliance to protect the building structure and life safety for occupants, insurance companies care about money -- property damage and lawsuits. Owners care about money lost to damage too but only after the fact, rarely before. ;-)(An exception to this of course is anybody who owns/manages data centers......you'll see a cost no object approach with these clients as there is huge money involved when the servers are down).You have the ability to supplement sprinkler water, with technologies such as halogenated/inert gas clean agent suppression (FM200, NOVEC 1230, Inergen, the now defunct Halon 1301, etc), Carbon Dioxide, Dry Chemical, Foam (AFFF, high expansion foam), etc. all with their unique strengths and weaknesses.The gases are good but you need a good seal and extended hold times (won't help if garage doors are open for instance). CO2 is good too but poses an asphyxiating hazard to occupants, and might also struggle with hold times.Dry chemical is strong but not an ideal residue to have on cars if you can help it (although this is what you'll find in gas stations). Same too for foam, although this is common in aircraft hangars.It's one thing to extinguish a fire at all costs, but now you have to be weary of not damaging precious goods at the same time, haha. I spent about a year traveling with some fellow Engineers to different Air Force reserve bases around the US dealing with the issue that a false activation of high expansion foam on an open C5 or C17 would be more expensive to deal with than fire damage! It was a reverse fire protection engineering exercise, if you will.It's not common to worry about protecting the good itself from damage-- nobody cares about pallets of destroyed nail polish, or acetylene cylinders. Just put out the fire and keep it moving. Naturally this application with cars, artwork, etc is unique.What it will ultimately come down to is fire prevention more than suppression; housekeeping practices, liquid storage techniques, proper drainage, etc. Some of this detailed in this short little data sheet by FM, if anybody is interested:
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