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RE: Pressure treated wood requirements above ground

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If that were true, then every ledger at the roofs of masonry buildings with 
 wood roofs would have to be treated and that is not the case.

I think the issue is proximity to soil.

T. William (Bill) Allen, S.E. (CA #2607)
University of Southern California, M.S.C.E., 1983
University of Texas at El Paso, B.S.C.E., 1977

Consulting Structural Engineers
32302 Camino Capistrano, #206
San Juan Capistrano, CA 92675
V (949) 248-8588•F (949) 209-2509

-----Original Message-----
From: seaint-seaosc(--nospam--at) [mailto:seaint-seaosc(--nospam--at)] On 
Behalf Of David Topete Sent: Friday, April 12, 2013 11:46 AM
To: seaint-seaosc(--nospam--at)
Subject: Re: [SEAINT-SEAOSC] Pressure treated wood requirements above 

I believe there is a section regarding ledgers that any wood in contact 
with concrete or masonry must be "decay resistant or preservative treated." 
 I'll briefly browse.

On Fri, Apr 12, 2013 at 11:25 AM, Drew Morris <dmorris(--nospam--at)> wrote:

> I am looking at an old building that has wood floor joists and roof
> trusses that are supported by concrete walls.  Going through 2009 IBC
> 2304.11, I can find the requirements for requiring pressure treated
> wood within 18 inches of the ground and other situations for the wood
> framing of the crawlspace.  I remember reading a passage that required
> pressure treated wood would be required for all wood bearing on
> concrete or masonry that would apply to the upper floor and roof.  I
> can't find this section, can anyone point me to it?
> --
> *Drew Morris, PE*| /Project Engineer/
> BBFM Engineers, Inc. <>
> 510 L Street, Suite 200 | Anchorage, Alaska 99501
> Ph: (907)274-2236 | Fax: (907)274-2520 | Web:

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