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Re: Re:Stress-skin panels

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I have specified/used the stress skin panels that Brandon is talking about.
I used to work for an engineering firm in San Luis Obispo and we had one
client that built timber homes utilizing mortise and tendon joints
(basically a heavy timber frame construction with infill walls).  We used
the stress skin panels (OSB on the outside, with foam in the middle) as
shear walls.  These panels did have ICBO approval with not only allowable
lateral shear values, but vertical loading as well.  As you may know, the
other advantage is the R value for insulation.

Mike Brown, P.E.

Original Message-----
From: Brandon Erickson <erickson(--nospam--at)>
To: seaoc(--nospam--at) <seaoc(--nospam--at)>
Date: Friday, May 29, 1998 8:59 AM
Subject: Re:Stress-skin panels

>You might try to contact the Timber Framers' Guild of North America
>(360-733-4001).  Traditional timber frame structures utilize stress-skin
>to infill between bays.  In looking through thier most recent news letter,
I saw
>an advertisement from Vermont Stresskin Panels (1-800-644-8885).  I also
have a
>copy of deflection-load data for stress-skin panels by W.H. Porter, Inc.
>sheet indicates thier product was tested according to ASTM standards and
>been accepted by BOCA and ICBO.  They also reference a National Evaluation
>Report NER467.
>I hope this helps.
>____________________Reply Separator____________________
>Subject:    Stress-skin panels
>Author: seaoc(--nospam--at)
>Date:       5/28/98 9:22 PM
>An architect presented me with a package from a company in Mexico which
>makes a stress-skin panel consisting of 26 gauge zinc plate on each side of
>a poly-"foam" (I don't remember the exact materials) filling. There are no
>ICBO reports nor any information used to design lateral or wind (normal to
>panel) connections. The panels are used for bearing as well as for roof
>planking and come in thickness of 4" to 12". The only structural data
>available is the panel span data based upon combined gravity loads.
>The architect is planing to use these system to design a bearing wall
>building on government (BLM) land for an antenna manufacture who will use
>the two story structure to house only electronic equipment.
>I tried very hard to talk him out of the panels and promised that I would
>search out a comparable product that has more structural information and
>ICBO approval.
>The reason for the panel need is that these antenna's are located in
>accessible area's where conventional material are difficult to transport.
>If anyone has some leads, please let me know.
>Thank you,
>Dennis Wish PE