The question that prompted the change was zackery this issue, ie the
channels in the metal pan of a poured concrete floor assembly. Since
the allowance to treat the panel pocket as obstructed construction
and place the sprinklers further down from the ceiling is based on
capturing heat, having all those open channels seemed counter-
productive. Thus the clarification with the wording "including the
interface at the roof". Granted the "roof" is on the outside but
it's used synonymously with ceiling as in 3.9.16 Roof Height.
Roland
On Jan 17, 2008, at 11:53 AM, Steve Leyton wrote:
Per the above section, the definition panel construction was
modified to
include the language, " ... There should be no unfilled
penetrations in
the cross sectional area of the bounding structural members including
the interface at the roof."
Where structural steel decking is supported by steel beams and girders
that otherwise meet the definition of panel construction, was it the
committee's intent that the openings created by the decking flutes
must
be filled above the top chord of said beams and girders? Or does
naked
steel decking still meet the intent of the definition of panel
construction?
Steve Leyton
PROTECTION DESIGN & CONSULTING
8849-B Complex Drive
San Diego, CA 92123
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