Gulley edge under slate tile

[scooter99]

My house is semi detached and on the join with the neighbouring side it's a 45 degrees extension with a gulley running down it. As you can see from the pics, the gulley edge is under the tile but doesn't seem to have much of a lip on it. Should the lip be higher to combat the increased flow of water during heavy rain or should it be mortared? There is water ingress in my bathroom roof when there is heavy rain and I've checked the tiles so I don't think they are the problem. The gulley is on my neighbours side.
Any thoughts?

 

[Alastairreid]

First thing to do is check the lead gutter is not choked up at the gutter stopend against the roof.

 

[blup]

The soakers seem wide enough but the tiles don't butt up to the wall, there should be at least 100mm under the slate. The upstand should be let into the wall to prevent any water getting down from the back of the gutter behind the fascia but perhaps its all sealed ok for that not to happen.

Blup

 

[catlad]

Is that white plastic guttering and fascia all new from the neighbours extension?

 

[scooter99]

First thing to do is check the lead gutter is not choked up at the gutter stopend against the roof.

I did think that the cap end of the white gutter was really tight to the gulley so if there was any high flow of water this would cause an obstruction.

 

[scooter99]

Is that white plastic guttering and fascia all new from the neighbours extension?

Yes although it's all on their side as the wall(where you see in the pic is a different colour) is the boundary.

 

[catlad]

Was it a problem before they built their extension.

 

[scooter99]

We weren't in the house so I don't know.

 

[scooter99]

First thing to do is check the lead gutter is not choked up at the gutter stopend against the roof.

Good shout I went further up the roof and there was moss and dirt. Cleared that and as you can see from the new pic you can now see daylight under the gutter stop end. Guess the water was pooling and seeping under the tiles. Will see how it goes re the ingress of water in the bathroom. I'm in scotland so I shouldn't have to wait too long for heavy rain. Cheers.

 

[scooter99]

The soakers seem wide enough but the tiles don't butt up to the wall, there should be at least 100mm under the slate. The upstand should be let into the wall to prevent any water getting down from the back of the gutter behind the fascia but perhaps its all sealed ok for that not to happen.

Blup

The white side is my neighbours side so I don't know if they are getting water ingress being the fascia.

 

[scooter99]

Thanks for all replies, very helpful.

 

[catlad]

Hopefully that has sorted the problem, but it looks like a poor detail to me.