Some background - the house is a late 80s 2 story build with fairly normal brick and cavity wall construction. uPVC windows were installed in the early 90s.
After last winter's heavy and persistent rains we ended up with some water damage to 2 of the window cills on the inside of the house on the ground floor on the south side. We never saw any signs of water pooling on the cills or the like; it would appear that the edge of the cill near/under the window was exposed to water which then wicked through to the inside and caused the outer edge of the cill of swell up.
I've had a close look at the sealant between the uPVC frame and the house wall and while it looks a bit weathered it seems firmly attached to both the frame and the brick work. That said I'm happy to dig it out and replace it. The seals between the double glazing units and their frames look fine and drain holes in the frame are clear. The brickwork and pointing looks fine..
But is there something else I should be looking at? Any advice would be appreciated.
After last winter's heavy and persistent rains we ended up with some water damage to 2 of the window cills on the inside of the house on the ground floor on the south side. We never saw any signs of water pooling on the cills or the like; it would appear that the edge of the cill near/under the window was exposed to water which then wicked through to the inside and caused the outer edge of the cill of swell up.
I've had a close look at the sealant between the uPVC frame and the house wall and while it looks a bit weathered it seems firmly attached to both the frame and the brick work. That said I'm happy to dig it out and replace it. The seals between the double glazing units and their frames look fine and drain holes in the frame are clear. The brickwork and pointing looks fine..
But is there something else I should be looking at? Any advice would be appreciated.