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Re: Concrete floor on wood trusses

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If the concrete is non-structural it is perfectly permissible and is done every day.  Every multi-story wood building typically receives an 1.5 inch concrete topping slab or 1 inch of gypcrete or similar product.  The IBC does not permit support of structural concrete on wood, non-structural can be up to 4" thick.
----- Original Message -----
Sent: Tuesday, December 06, 2005 4:45 PM
Subject: RE: Concrete floor on wood trusses

The IBC does not allow support of concrete on wood.  See section 2304.12.  That?s a pretty solid argument I would say J


~~ Eli Grassley


-----Original Message-----
From: David Smith [mailto:smith1129(--nospam--at)]
Sent: Tuesday, December 06, 2005 11:50 AM
To: seaint(--nospam--at)
Subject: Concrete floor on wood trusses


I have a prospective client wanting a concrete floor slab poured on wood trusses.  The building will be steel-framed on the perimeter.

I am trying to get him to use steel bar joists rather than wood trusses.  Anyone have some good arguments against this?


Dave Smith

Smith Associates