Here's another side shot
Note that the lines of discoloration sort of correspond to the edges of the chimney, so at first, you might think water is coming in at the lower edges of the chimney and running down the wall.
But then, note the undamaged circle right in the center. That was where there was a medallion made by attaching a plywood circle to the wall then stuccoing over it (see picture #2). Because the circle seems to have protected the sheathing behind it, I think I am back to simply suspecting the stucco here - I think if it was the chimney, it would have been just as wet and rotten behind the medallion as everywhere else. And the pattern of those dark streaks does resemble the pattern of cracks we've seen all over the stucco (I don't know specficially if there were cracks here because we didn't have a ladder long enough to get up this high when we were caulking cracks.)
But then, note the undamaged circle right in the center. That was where there was a medallion made by attaching a plywood circle to the wall then stuccoing over it (see picture #2). Because the circle seems to have protected the sheathing behind it, I think I am back to simply suspecting the stucco here - I think if it was the chimney, it would have been just as wet and rotten behind the medallion as everywhere else. And the pattern of those dark streaks does resemble the pattern of cracks we've seen all over the stucco (I don't know specficially if there were cracks here because we didn't have a ladder long enough to get up this high when we were caulking cracks.)
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