If that is the case, then what are the restrictions (if any) on how
the insulation is to be supported? If there is any concept of the
insulation falling out and the sprinklers from above protecting the
space, then how it is supported could make a big difference. If they
use chicken wire stapled to the bottom of the truss, then the
insulation will never drop out.
BTW, are there any seminars on the 2007 revision of 13? Nothing has
come across my desk.
At 11:40 AM 1/16/2007, you wrote:
Todd,
Take a look at the 07ed 8.15.1.2.16, I think this will answer your
questions.
You can view the new version online at NFPA if you do not have it yet.
Dewayne
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Todd
Williams - work
Sent: Tuesday, January 16, 2007 10:18 AM
To: [email protected]
Subject: concealed space below insulation
I am working on a project with a wood truss system creating an attic
space. The suspended ceiling is 3-4 ft below the bottom chord.
Insulation is to be installed between the bottom chords of the trusses
and held in place with strapping. Sprinklers will be installed in the
attic and below the ceiling. Section 8-14.1.2.13 of NFPA 13 states
"Concealed spaces below insulation that is laid directly on top of or
within ceiling joists in an otherwise sprinklered attic shall not
require protection." Would this be apply to the situation above? I think
it boils down to whether the bottom chord of the truss would be
considered a ceiling joist if the actual ceiling is not attached to it.
If it would apply, would there be any restriction on how the insulation
is held in place? If this is not applicable, in what situation would it
apply? I have never had the opportunity to use this section before and
would appreciate some clarification.
I trust this will be somewhat less contentious that some of the other
recent posts..
Thanks.
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
860-535-2080
www.fpdc.com
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_______________________________________________
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http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
860-535-2080
www.fpdc.com
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