Another chimney problem

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Penwa

New Member
Hi all

I use the forum a lot for info and advice but first time posting. So any help is appreciated.

I seem to have a leak coming through my chimney somewhere which has stained the ceiling and wall at the joint with the roof. I will attach photos when the Forum will let me, of the flashing and back gutter (the scratched paintwork is from me scraping the paint off so the dehumidifier worked a bit better).

Had the flashing done over 1.5 years ago and had no problems afterward, then got damp patches in November.

The flashing looks ok, except it is not cut into the brickwork. Given the age of the house, it looks like the roofer has just sealed it to the rendering. My opinion is that the rendering has failed, because, well it's coming off in chunks so it obviously has, and it is letting in water into the brickwork. Only issue with that theory is that I have slapped silly amounts of sealant on the lower part of the stack and it seemed to make the problem worse. Now that I think of it, that might be because the lower part of the stack can't breathe so the water is able to penetrate further down.

Any thoughts on where the leak could be? Much appreciated.
 
TBH I’m surprised it’s taken this long to leak, the “leadwork” is just plain wrong. Someone has used the wrong method for those tiles :( point your browser to “soakers and flashing”
 
I'm by no means an expert but from what I could see online it looked ok. Is there something specific to search for?

Thanks.
 
I see what you mean now. Obvious when you know what to look for!

So to remedy, the flashing needs to come off and soakers under the tiles. Do you think it's worth cutting into the rendering of the chimney stack to put the flashing in? I have a feeling the rendering will just start falling away if I try to cut into it.
 
Penwa said:
Do you think it's worth cutting into the rendering of the chimney stack to put the flashing in? I have a feeling the rendering will just start falling away if I try to cut into it.
Click to expand...
If you’re only doing half a job don’t be surprised when it fails ;)
 
Alan22 said:
Is it me/or the picture or does the 4th pic show lead sloping down under the tiles?
Click to expand...
That's the back of the chimney. Tilt your head to the right and it's the right way up lol. The lead is going under the tiles and up toward the roof ridge.

Roger that, guess I'll be having a fun weekend.

The pictures don't really show it but the chimney slopes at the bottom, I thought it was a bell curve but it looks like someone has just slapped some rendering all over the place where there should be tiles. It didn't leak for 5 years until the initial problem we had 1.5 years ago so I assume that's fine?

Thanks for your help, really appreciate it.
 
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