This is an issue that is only going to properly addressed with some
sophisticated fire modeling and/or full scale fire tests. Or enough
losses to derive protection criteria. Nothing in the present
standards seems to address this adequately. Even Engineers need
guidelines, so 'leaving it to the Engineer' may do little more than
pass the buck one step up. That may help insulate the contractor, but
doesn't solve the initial problem.
The problem is to derive proper protection criteria for this
occupancy. Maybe this is another situation where sprinklers cannot
protect the occupancy. Hi X foam is an option; I have also inquired
about some form of water mist. Somehow, this would have to be worked
out. Once the criteria is established, then the industry would have
to set criteria to deal with the hazard (rack strength requirements,
arrangements, etc)
Until then, it's not much more than a good guess.
At 10:56 AM 8/10/2007, you wrote:
The issue is not boats in a berth sitting in the water. That one is
simple since it is just a building covering a low level of storage.
He is asking about boats stored on racks several levels high. It's a
nasty item. No contractor in their right mind should attempt to
DESIGN it. Even with the engineers copying designs from contractors
in the Florida panhandle, LEAVE IT TO THE ENGINEER. Now I can say no
engineer in their right mind would touch it unless the client was
willing to make some very limiting modifications to the layout of the
racks.
Many of the facilities have adjustable racks to accommodate boats of
different heights. I've heard of people putting side wall heads in
the columns to cover the area beneath the boats. You think maybe
they were ignoring that you need the heads to activate in order for
the water throw to count as covering the area? Group A plastics on
racks with LOTS of surface area and LOTS of air flow is not a recipe
for a slow burning, modest fire.
Speaking of racks, these also often do double duty by supporting the
roof as well as the boats. You think they include the weight of a
water filled boat as part of the load for designing the rack?
Roland
On Aug 9, 2007, at 2:24 PM, <[EMAIL PROTECTED]>
<[EMAIL PROTECTED]> wrote:
Are you having to prove the worth of sprinklers in this type of
installation?
Any idea of the value of loss in storage docks WITHOUT sprinklers?
Craig L. Prahl, CET
Fire Protection Group
Mechanical Department
CH2MHILL
Lockwood Greene
1500 International Drive
PO Box 491, Spartanburg, SC 29304-0491
Direct - 864.599.4102
Fax - 864.599.8439
[EMAIL PROTECTED]
http://www.lg.com
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Greg
McGahan
Sent: Thursday, August 09, 2007 4:41 PM
To: [email protected]
Subject: boat storage
I know this subject has been thoroughly abused so let's try a
different
angle.
Does anyone know of any successful saves due to a sprinkler system
in a
boat storage facility?
This issue is not going to go away and there is only going to be
more of
them built.
Greg
Living Water Fire Protection, LLC
1160 McKenzie Road
Cantonment, FL 32533
850-937-1850
Fax: 850-937-1852
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Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
860-535-2080
www.fpdc.com
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