Beautiful People:

I am working on my garden apartment. Right now, the area underneath the front windowsills is exposed, on the inside, to the brick (as is much of the rest of the house).

On a nasty wet day like today, the rest of the brick is nice and dry, but the area underneath both the windowsills is as damp as can be.

We pulled out lots and lots of rotten wood from this area: rotten floors, molding, wainscotting, etc. So I don’t think this is a new problem.

There were real gaps that let light in, so we filled those cracks with steel wool and expanding foam and figured we solved the problem. But it is still as wet as can be down there under the sills!

How do I best troubleshoot this? Do I look at the grade of the cement in front of the windows? The windows themselves (it’s not the window casing that’s leaking, it’s the wood frame underneath the casing)?

I certainly don’t want to replace all that wood only to let it all rot again.


Comments

  1. Water could be tricky sometimes, because water could travel through a beam, pipe,wire etc…
    But in this case I would say is the caulking on the window or the brick pointing.
    Let a mason look at it.

  2. sounds like a job for a mason or waterproofing expert. I had a similar issue on the side of my building with water coming in, noticed during my reno when ice crystals formed on the wall. I hired a mason who addressed the issue via pointing and sealing bricks. There may also have been a roof issue that he also took care of at the time. No issues since. In your case it may also be the window itself, but since your saying its below the sill, it makes me think it could be the bricks.