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I have a leak in my roof, what has happened?

Updated: Jul 9, 2023

When it comes to your roof, there are several places where your roof can leak from. The main area your roof will leak from is the slate or tiles. We also see roofs leaking from around the chimney stack. This blog will go through some points of where your roof will leak and how to solve the problem.

My roof is leaking through my slates/tiles

If you have broken or missing slates or tiles, these will need replacing. This problem is easy to fix and relatively cheap to repair. When water leaks through your slates, your roof could have several faults. In older style properties, there is often no felt under the slate/tiles; we see a lot that the back pointing has fallen out from behind the slate/tiles.

Why is my roof leaking leaking?

Historically, when many older homes were built, materials like the felt membrane used underneath the slate/tiles were unavailable. Because of this, sand and cement mortar were used to try to stop water from blowing under the slate/tiles. When this becomes loose and falls off, the water can then blow underneath the slate/tiles, causing a leak into your home. When this happens, it's a good time to look at replacing your roof, as this problem will only get worse.

This problem can also happen if you have a rip in your felt membrane; in high winds and rain, you will always get water that blows under your slate/tiles, and the felts job is to catch this water and take it into the guttering at the bottom of your roof. If you have rips and tears in your felt membrane, the water that gets through your slate/tiles will leak inside your home.

My leak is coming from the chimney stack

This is a common issue; we find that the lead around the chimney stack has become loose or perished. At this point, the lead would have to be inspected and repaired where needed or replaced.

There is a leak coming from my roof valley

There are only two areas of your valley that can leak. One is that the pointing in your valley may need to be replaced, and the second is that the lead might have a rip or tear. At this point, a roofer would have to look to determine what would need repairing or replacing.

My guttering is leaking

Most of the time, the guttering can be seen leaking from the floor level and are very easy to fix. Joints start to leak over time and can have the gasket inside changed. If your guttering does not have the correct flow, your gutters will fill up and cause dampness on the wall. At this point, they will need to be changed.


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