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Posted by Norminn on January 9, 2008, 5:00 am
nospam.house@none.com wrote:
>I have a 50 year old single story home with stucco on the exterior.
>There's been a lot of rain lately. I noticed the southern facing wall
>in the garage became wet after a very windy rain day when the wind was
>blowing the rain toward the exterior wall.
>
>The garage walls have no interior drywall. I noticed the weather paper
>behind the stucco became wet in some areas. One of the beams became
>very wet. I did some investigation, the water is not leaking from the
>roof, but got in from the side, as the top of the wall is dry.
>
>After the rain has passed. I went outside and noticed some clear wet
>path along the exterior drywall, like someone has painted the wall
>with water mark. Look closer, and I see that every one of these path,
>the drywall has cracked. It's interesting that in areas not cracked,
>it looks dry. On the inside, the crack is approximately where the
>water has gotten inside and the weather paper becomes wet.
>
>How do I fix this? The crack seems to be too small to be patched by
>stucco mix, yet water still finds their way inside. Can I patch it up
>with calking? The weather paper is not in its prime conditions, but
>fixing it seems to be rather hard, since the beams are in the way...
>
>Thanks!
>
>
Our condo in Florida is stuccon on concrete block. When it was painted,
the contractor used
a brushable caulk on all the cracks. Cracks were all hairline or very
fine. The brushable
caulk should be available at good paint stores - it has flex, so cracks
don't reopen. Six years
ago, and we have no cracks showing through the paint.
FWIW, after the hurricanes here, there were articles about water driven
THROUGH these
walls - cb/stucco is the only building style these days here. Older
homes, with more coats
of paint, were less apt to have the problem.
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