1900s Terraced style house, roof problems

[KyMin]

I live in a 1900s terraced style house, it is joined back to back as opposed to having neighbours either side, meaning it has two gable walls.

The house is a peculiar shape and on the right hand side it widens towards the back, from a Birdseye view it forms a trapezium. The roof features Roman tiles which makes for an awkward verge on one side.

I’m experiencing issues with damp and blown plaster in the attic bedroom, I imagine its due to water tracking back under the tiles at the verge and down the walls. Recently, I’ve had the wet cement verge replaced for a dry verge, however having seen the installation from above, I’m not confident this will resolve the issue as it doesn’t look appropriate for the peculiar shaped roof.

Can anyone suggest a solution for this situation?

** I’ve also experienced some issues near the chimney breast, the ceiling plaster board has sagged and the chimney breast plaster has blown (see photos).

 

[sxturbo]

Bump for you, hopefully a roofer will see it

 

[catlad]

Needs a gutter. and ideally re slating.

 

[^woody^]

It looks to be more of a problem with the wall rather than the roof, but could well be the bit of roof over the wall.

Any photos of the wall and verge at the side?

 

[KyMin]

Hi Everyone, thanks so far for engagement on this thread, I'm attaching some photos of the gable wall where you can see some damp. Water looks to run off the roof and track down the wall due to the trapezium shape. Any suggestions on how to prevent or resolve this?

 

[^woody^]

Hi Everyone, thanks so far for engagement on this thread, I'm attaching some photos of the gable wall where you can see some damp. Water looks to run off the roof and track down the wall due to the trapezium shape. Any suggestions on how to prevent or resolve this?

You can see the stained brickwork and that presumably is the location of problems.

The verge tiles, felt and cloaks should be investigated at those locations and remedied as necessary.

It may be a simple as badly fitted dry verge or a different problem.

 

[KyMin]

Thanks @^woody^ Yes the stained brick work is where the wall is damp on the interior. The dry verge is a very recent installation, I had the old cement replaced with the dry verge in an effort to combat the water potentially tracking under the verge tile edges.

I'm exploring options at the moment and waiting to see if the dry verge proves successful.

As the roof is an awkward shape, I can't think of any thing else to direct the water off the gable wall and perhaps into a gutter?

 

[^woody^]

If you had fitted a continuous dry verge, it would have collected all the water off the tiles and directed it into the eaves gutter.

Individual plastic verges that you have should do the same, but are more prone to misalignment and coming loose, and leaking at the joints.

The existing dry verge can't be working, as the wall is still stained with water.

 

[KyMin]

Thanks @^woody^ My thoughts exactly, the broken/individual plastic verges lead my to believe water could still escape into the gable wall. I think the roofer chose to use these as the roman tiles make for an awkward, waving edge that conflicts with a consistent verge piece. These verges that you see in the photo were installed only last week and so I'm waiting to see how effective they are in resolving the issue, but I do anticipate some form of seepage as they don't look consistent in their fitting.

 

[datarebal]

product is not suitable for that situation..

 

[catlad]

Unfortunately the people who removed the slates have left you this problem.
You will need scaffolding.

 

[Barthy]

I definitely wouldn't recommend individual verge units on a raking verge or a high profiled tile like yours
As mentioned before if you were insisting on dry a continuous system would have been the way forward
I'd always prefer an undercloak mortar finish in this case mate

 

[KyMin]

Thanks @Barthy and everyone for comments so far, really helpful! I think it’s safe to say the dry verge that has been installed isn’t up to standard or likely to improve things, it’s already showing water ingress on the raking edge. I’m looking for solutions now and would appreciate if anyone has ideas to get this house water tight! Thank you!

 

[catlad]

I suggest you get scaffolding erected otherwise people are likely to walk away.