-
The side where the ladder is looks kinda complicated - looks like there’s a valley that runs in to something and a boiler flue (or down pipe?) and the flashing doesn’t look great. Lots of potential culprits anyway.
-
Cant tell from the picture but is the flashing raised a bit on the tiles? It could be the the flow from the old roof is a lot and cant get away quick enough or put a baffle at the end of the short downpipe
Extend the downpour straight into the gutter off the old roof
-
However the leak is nowhere near those slates
Water likes to find it's way across battens and over the surface of sarking, until it finds a hole / pools.
Leaks never seem to be where you think.
Lifting a few tiles might be in order.
-
Only certain wind directions? Which wind direction? That would suggest you have poor overlap somewhere.
You could recreate the effect of the wind by experimenting with hose angles?
You are reading a single comment by @andos and its replies.
Click here to read the full conversation.
Howard
musa
NotThamesWater
JonoMarshall
@andos
Leaky roof woes.
I’ve had some work done over the last few months. Skylights put in and a small extension. We’re currently trying to trace a leak which happens during very heavy rain only at certain wind directions.
The chap who put the skylights in is fucking impossible to pin down and the builders who did the extension think the roofer needs to come back (I agree) as we saw evidence of damp in the sarking/plasterboard when the extension was done.
It’s been pishing down so the leak is in full flow and I’ve been up on the roof taking a look as well as blasting a hose pipe but I can’t replicate the leak with a hose even after an hour.
What I did notice was some crazy big spacing in the slates which I assume the roofer has created when doing the roof lights. Those aren’t good right?
However the leak is nowhere near those slates it’s actually at the bottom right of the roof near the ladder in the below photo. All slates are legit around the right most skylight and I’ve blasted it with a hose at ever angle so I’m stuck for ideas...