Tires are hard to get lit and therefore hard to put out once you do (thermal inertia). Maybe the reason for the separate standard, more than the material composition, is the expected fire growth/decline rate, decline whether sprinklered or not. I read somewhere years ago with a tire storage fire it might reach a point where the best thing to do would be hop on a fork truck and haul them out to the yard and let them go for a day or two!

Brad

Quoting "Prahl, Craig/GVL" <[email protected]>:

If you were dealing with purely synthetic rubber in slabs that would be a whole different story. But a slab of rubber is different than a tire.


Craig L. Prahl
Fire Protection Group Lead/SME
JACOBS - CH2M
200 Verdae Blvd.
Greenville, SC  29607
Direct - 864.920.7540
Fax - 864.920.7129
CH2MHILL Extension  77540
[email protected]


From: Sprinklerforum [mailto:[email protected]] On Behalf Of John Paulsen
Sent: Thursday, January 25, 2018 1:30 PM
To: [email protected]
Subject: RE: Rubber Tire Storage [EXTERNAL]

James:

He doesn't think NFPA-13, Chapter 18 applies? I understand his confusion, the commodities definitions do reference synthetic rubber as a Group A Plastic, but it doesn't specifically reference tires in the definitions....

John Paulsen - SET
Crown Fire System Design
6282 Seeds Rd.
Grove City, OH 43123
P - 614-782-2438
F - 614-782-2374
C - 614-348-8206



From: Sprinklerforum [mailto:[email protected]] On Behalf Of James Crawford
Sent: Thursday, January 25, 2018 12:56 PM
To: [email protected]<mailto:[email protected]>
Subject: Rubber Tire Storage

NFPA #13 (2013) is my reference.

I have an AHJ that is telling me that Rubber Tires are classified as a Group "A" plastic for the purpose of commodity classifications.

I have informed him that Rubber Tires are a commodity classification on their own, but he disagrees, he says there are a synthetic rubber so are a Group "A" plastic.

I have shown him the Table A5.6.3 for Commodity classifications in NFPA #13 where rubber tires are not mentioned and chapter 18 that deals with Rubber Tire storage but he still disagrees.

Any suggestions?


Thank you


James Crawford
Phaser Fire Protection Ltd.
Phone  604-888-0318
Fax 604-888-4732
Cel 604-790-0938
Email  [email protected]<mailto:[email protected]>
Web www.phaserfire.ca<http://www.phaserfire.ca>



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