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Re: R value for log walls

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I believe that Bruce has stumbled onto the source of your confusion.  
The R value for thermal resistance is in no way related to the R 
value for seismic design (defined in the 1997 UBC as the "numerical 
coefficient representative of the inherent overstrength and global 
ductility capacity of lateral-force-resisting systems").

*************
> From:          "Bruce D Pooley" <bdpooley(--nospam--at)home.com>
> Subject:       Re: R value for log walls
> Date:          Wed, 8 Dec 1999 13:30:13 -0700
>
> The AITC Timber Construction Manual (in both the 3rd and 4th Editions) shows
> a method based on specific gravity and moisture content. It is based on
> fundamentals from American Society of Heating, Refrigerating and
> Air-Conditioning Engineers, Inc.

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Michael Valley                                   E-mail: mtv(--nospam--at)skilling.com
Skilling Ward Magnusson Barkshire Inc.                  Tel:(206)292-1200
1301 Fifth Ave, #3200,  Seattle  WA 98101-2699          Fax:        -1201