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[SEAOC] Re: [SEAOC] Fw: stucco discoloration

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Hello Renee:

The July 1996 issue of Journal of Light Construction (JLC) has
recommendations (on p. 19) for installation of wood trim with Tudor-style
stucco walls. The reply (to an inquiry) mentions staining of stucco from
water-soluble extractives in cedar trim. Also, if water leaks behind the
trim, it might cause leaching of water-soluble asphalt components in the
building paper, if an asphalt impregnated building paper is used.  I would
be surprised if pine trim was used (unless preservative treated).

John Rose, Tacoma, WA

>Please help this person. Make sure you send a response to him too. He is
>not on our list.
>His email address is:
>> From: Renee J. D'Amico <damico.7(--nospam--at)>
>> To: seaoc-ad(--nospam--at)
>> Subject: stucco discoloration
>> Date: Wednesday, August 07, 1996 3:14 PM
>> Dear seaoc:
>> I have a 1 1/2 year old tudor home that is mostly stucco and pine trim.
>> When the home was six months old, we noticed visible signs of stucco
>> discoloration below the trim and it has gotten significantly worse over
>> last year.  The lumber company tells us that the rough pine trim was
>> in an oil base primer on all sides and then two coats of acrylic
>> paint were applied after the trim was nailed up on the house.  The trim
>> not caulked.  The paint company inspected the trim and said that the
>> was not the cause and they suggested that water was running behind the
>> but they weren't sure what was causing the discoloration.  Do you have
>> suggestions as to what might be causing this or where we might turn to
>> research it further?  Any suggestions would be greatly appreciated!  
>> you,  Renee D'Amico