Eric,
I assume the shaft walls are sheetrock due to the wood framing.
Here in Vermont, sheetrock is considered a limited combustible material when
installed vertically, requiring the shaft to be protected. The standard
requires a noncombustible shaft.
Dick Culver
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Eric Tysinger
Sent: Friday, October 08, 2010 9:25 AM
To: [email protected]
Subject: Elevator Shafts
Sorry if this gets posted twice. I sent the first one 1/2 hour ago and
doesn't appear to have gone through.
Gentlemen,
I have a project (NFPA 13R) Type 5B/R-2 located in South Carolina. The local
fire marshal is contesting that because the elevator shaft is framed with
wood, as is the rest of the building (type 5b) that it is considered a
combustible shaft. The shaft is also 2-hour rated. The shaft and car are
manufactured and installed IAW ASME A17.1. When 13R (2010 ed) references
combustible elevator shafts, aren't they referring to the exposed surfaces?
As well, ASME A17.1 requires the car and shaft to be non-combustible. I know
that 13R added the "combustible" wording in the 2007 edition as some states
have not adopted the ASME requirements. Am I wrong, by thinking this AHJ is
incorrect, is it considered combustible and are sprinklers really required?
Thanks,
Eric Tysinger CET
NICET III - 108988
Designer
Wayne Automatic Fire Sprinklers, Inc.
4370 Motorsport Drive
Concord, NC 28027
p: (704)782-3032 x1751
f: (704)795-6838
C: (239)633-9703
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