Parapet wall flashing remedial advice request

[Craggy]

Hi,
im after a bit of advice on what needs doing to my parapet walls so they don't leak rainwater.

I've lived in my house 10 years. all four corners of the house have on and off or persistently leaked damaging my internal bedroom ceilings, people have been up with pieces of lead and lead mate over the years but I've came to the conclusion it cant have been done right in the first place.

All my ceilings in the for corners get soaked when it rains heavy. as well as what's in the photos from looking in the loft I can see that the felt membrane under the battens doesn't attach to the inner block wall so any rain that does make it past the crappy flashing just drips down the wall and soaks my rooms.

I'm now looking at having it scaffolded fully and the job doing right.

With this I've had a couple of roofers out to do quotes and there seems to be differing consensus on what a proper job entails. where lead needs to be dressed to, what to do under the coping stones etc.

I don't suppose someone could summarise what i should be asking for? i.e copings lifted, where to form the lead to, all new lead? do i need to have them do anything with the felt under the tiles., do i need a membrane under the copings or lead in between them. im not not exactly in a position to have a rolls royce standard if there are options but it needs to be something that will work and last hopefully.

thanks for any advice.
Neil

 

[datarebal]

All the lead work is poor .
You'll need scaffolding , copings off. Some thing to pack out the gap to the Rh parapet to stop the flashing sag as it is at the moment. New lead flashing dressed to tile profile.
New lead under copings which should continue to the outer edge of the kneeler stone . Copings back on

Fwiw , flashing has sagged as it's unsupported on the Rh side exposing the top edge to the weather , clear to see in your images .
Left side a few bad details at the top of the parapet and at the lower area ... It will leak and be damp .
And for good measure point the chimney flashing in

 

[^woody^]

And pick your tradesmen wisely. You'll need a good bricklayer, [pitched] roofer and I wonder if plumbers still do lead?

Or someone who is very good at all these.

Perhaps someone who works on historic buildings who may care a bit more, and have experience of this type of detail

 

[accelerator]

Just looking at the leadwork, it looks as though it might be leaking, as it seems to be coming away from the tiles in places.

I was thinking maybe there's an industry body for leadwork that may be able to help, and after a quick Google I found:

LCA - Lead Contractors Association

Lead Contractors Association A GUARANTEE OF QUALITY Join the Lead Contractors Association download the FREE LCA Members Directory The Lead Contractors

leadcontractors.co.uk

Maybe they can provide an approved leadwork specialist. I've no idea how good the association is though.