Home Page link

Stained Stucco Under Window

Home| Search | About
Login Password
Register Now! Lost Password?

Building Construction - Building Construction Industry Discussions. 

Bookmark this page:  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Stained Stucco Under Window Andy Energy 01-10-2008
If you were  Registered and logged in, you could reply and use other advanced thread options
Posted by Andy Energy on January 10, 2008, 2:23 am
Some of windows on this house have discolored stucco at the corners
under the window. Some have a visible crack. We had several days of
rain prior to this picture. Can anyone explain this?

Thanks
Andy

Posted by DanG on January 10, 2008, 7:05 am
Improper flashing of the windows.

How old it s this place? You don't say, but I suspect you may
have EIFS rather than traditional stucco. Sadly, poor flashing
is quite common on all construction but is really bad on EIFS
installations by poor applicators. The only solution to my
knowledge is to rip the wall open enough to correct the flashing
and house wrap around the window. If the stud wall below the
window has been saturated enough times, it may well require
replacement. This is not something that can be fixed by smearing
a little caulk on the outside.

Here is some good reading:
<http://www.jlconline.com/cgi-bin/jlconline.storefront/47860569000e4d8e27177f0000010561/Product/View/0102maki>

<http://www.jlconline.com/cgi-bin/jlconline.storefront/47860569000e4d8e27177f0000010561/UserTemplate/82?s=47860569000e4d8e27177f0000010561&c=59e803a8ea012192b91c88f3be8e5dff&p=1>
--
______________________________
Keep the whole world singing . . . .
DanG (remove the sevens)
dgriff237@7cox.net



> Some of windows on this house have discolored stucco at the
> corners
> under the window. Some have a visible crack. We had several
> days of
> rain prior to this picture. Can anyone explain this?
>
> Thanks
> Andy



Posted by Astro on January 11, 2008, 9:07 am
> Some of windows on this house have discolored stucco at the corners
> under the window. Some have a visible crack. We had several days of
> rain prior to this picture. Can anyone explain this?
>
> Thanks
> Andy

Andy,

I've seen a lot of houses like this in my area. In one that I
inspected closely, it appeared that they applied the stucco directly
to the wooden sill. The wood of the sill changes shape at a different
rate than the stucco, leading to cracking, particularly at the ends.
The moisture builds up in the wood, leading to wood rot. The rotting
wood, provides further nutrients to algae/mold as it seeps out of the
crack and drips down the wall, leading to clear wall staining
patterns.

See:
http://www.etccreations.com/DSC_0066.JPG

This is also visible in many windows where there is no stucco problem.
Vinyl clad windows can trap water behind the vinyl. Since the vinyl is
impermeable to water, the water absorbs into the wood faster than it
evaporates to the outside. Some water will drip out at corners and
seams, as in the picture linked to. Ultimately, this leads to rot /
window failure.

Posted by tmurf.1@juno.com on January 12, 2008, 9:29 am
> Some of =A0windows on this house have discolored stucco at the corners
> under the window. =A0Some have a visible crack. =A0We had several days of
> rain prior to this picture. Can anyone explain this?
>
> Thanks
> Andy

Is the stain about the same color as the window frame paint? If so you
may need to re-paint the window and power wash the the stucco. Then
apply some caulking to the cracks and waterproof the stucco with
Thompsons or some other water repelant.

Posted by Andy Energy on January 12, 2008, 11:08 pm
>
> > Some of =A0windows on this house have discolored stucco at the corners
> > under the window. =A0Some have a visible crack. =A0We had several days o=
f
> > rain prior to this picture. Can anyone explain this?
>
> > Thanks
> > Andy
>
> Is the stain about the same color as the window frame paint? If so you
> may need to re-paint the window and power wash the the stucco. =A0Then
> apply some caulking to the cracks and waterproof the stucco with
> Thompsons or some other water repelant.

1) This house is 17 years old.
2) I do not know if it is real stucco, I do have a picture of a
damaged window sill and a damaged cornner. I'll post tem as soon as I
can and maybe someone can tell me if its really stucco.
3) The windows are Aluminum and white in color

Similar ThreadsPosted
Stained Concrete Floors July 25, 2006, 1:18 pm
What is the best way to replace bad window flashing but keep the window ? July 8, 2006, 8:39 pm
Which comes first? Brick or stucco??? July 19, 2006, 11:54 am
stucco before roofing? September 16, 2006, 12:47 am
What is a stucco nail? March 4, 2007, 8:18 pm
Commercial Building: CMU vs Stucco July 25, 2006, 9:47 pm
Commercial Building: CMU vs Stucco July 25, 2006, 9:50 pm
replacing windows on a stucco wall September 5, 2006, 3:04 am
Which is cheaper Hardibacker siding or stucco? March 2, 2007, 2:06 am
Is stucco material simply mortar mix? September 19, 2007, 10:07 am

Contact Us | Privacy Policy

XML SitemapXML Sitemap