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Dryvit was:Cement Board Shear Wall

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I know that there have been recommendations to take care of the EIFS problem 
of letting moisture in and not letting it out.  What Rich Lewis posted was 
that the contractor suggested a dryvit *type*, which could be anything, as 
was "powerwall" stucco.  While Powerwall (TM) stucco was commonly specified 
locally, stucco contractors typically applied *any* prepackaged stucco that 
they regularly used and referred to it as powerwall.

I am not familiar with Dryvit MD (TM) and it may well take care of the EIFS 
problem that Dryvit (TM) had.  My suggestion to Rich Lewis was to look at 
what problems could be experienced with a dryvit *type* stucco so that he 
could take precautions to protect his structure.

A number of years ago, I got a call from a lady who wanted to know who did 
testing for moisture as she wanted to get an independent verification of the 
moisture reading the stucco contractor's testing company got.  The moisture 
content in the plywood that the contractor's representative got was 33%.  
(This was here in Tucson, Arizona, where rain is a phenomena that people 
stop work to watch.)  I gave her the name of a couple of local testing 
laboratories and that was the last that I heard.

Test equipment catalogs that I get prominently indicate that EIFS tips are 
available for their moisture meters which tells me that EIFS problems still 

A. Roger Turk, P.E.(Structural)
Tucson, Arizona

Eric Green wrote:

. > Roger,

. > I suggest I search on "Dryvit MD." (Not part of your subject concern,
. > but more important.) :-)

. > Perhaps some of your concerns are addressed? I would be curious what you
. > think about moisture controlled EIFS.

. > Eric Green

. > -----Original Message-----
. > From: Roger Turk [mailto:73527.1356(--nospam--at)] 
. > Sent: Friday, January 24, 2003 9:55 AM
. > To: seaint(--nospam--at)
. > Subject: Cement Board Shear Wall

. > Rich,

. > Do a Google search on "dryvit."  (Not part of your subject concern, but
. > more 
. > important.)

. > A. Roger Turk, P.E.(Structural)
. > Tucson, Arizona

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