My roof has always leaked in certain types of weather. My theory was that part of the roof had too shallow a pitch for the clay tiles that were used. I knew that tin could be used for lower pitched roofs so I replaced the tiles with metal profile, in 4 metre lengths. Not sure if I should have fitted a different type of chimney flashing as previously it went over some tiles and under others. Anyway, the first time it rained after doing the job, the roof leaked at the chimney flashing. I thought it was because of the angled cut edge of the metal, creating high and low areas. I ran some expanding foam along that edge, trimmed off the excess and painted it with bitumen paint for UV protection. The next heavy rain it leaked as bad as ever!
![20250713_113050[1].jpg](https://www.diynot.com/diy/attachments/20250713_113050-1-jpg.386920/ "20250713_113050[1].jpg")
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New Roof Leaks
- Thread starter fidom
- Start date
Can you identify whether it is leaking at the back or the front of the chimney it may be the flashing at the back. Having said that the chimney looks to have been constructed with hollow bricks which might mean it leaks for fun and you may need to render it.
The word abortion comes to mind.
They've rushed back to the thread they created ...
- Joined
- 23 Oct 2025
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Cor, that’s rough, mate. Sounds like your roof’s leakin’ worse than a teapot with no spout.
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