Outside chimney to wall joint leaking


  #1  
Old 03-14-10, 03:19 PM
M
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Outside chimney to wall joint leaking

I have a 45 yr old house. The original siding was replaced before I moved in about 7 years ago with vinyl cedar impressions. I'm starting to get some water in my basement that's coming in under the sill behind an outside chimney and running down the wall when it rains heavy and blows (like the whole fall and winter here on Long Island, NY). I think the water is coming in between the chimney and the adjacent wall. I plan to remove the siding on that wall to install windows on either side of the fireplace. What is the best way to seal that joint before I replace the siding? The roof is fairly new and the flashing where the roof meets the chimney is in great shape. I had the chimney repointed and crowned when I moved in. I do have to replace two bricks that have broken and popped. The bricks are on the outside and away from the house. Any ideas? Thanks.

Mike
 
  #2  
Old 03-16-10, 06:34 PM
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I'd probably use silicone.
 
 

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