As I said earlier, I have running water rolling down the wall when it's heavy rain so it's not just a stain.
So discounted hygroscopic salts as a cause...
Thanks again.
I'll try and get some pics when the sheet comes down.
How do you sweep the flu of a bricked up fire place?
Evidence is not just stains. See the first picture of the water damage. I physically get runs of water falling down the lining paper. The paper has been so wet its...
Thanks for coming back to me.
Pics were taken some time ago and scaffolding has since been removed. It was erected to do a full repoint of both stacks.
I've also has flaunching removed and redone, as well as correct ventilation of the unused bedroom flues. See pic from this morning...
Oh, and no damp found in the attic during rain. The loft structure makes it very hard to get access to it so I even drilled a big hole in the ceiling of the bedroom close to the brickwork to assess for damp and found no sign.
Even found a wasp nest there and they wouldn't go near damp.
Thanks all for your replies.
Some pictures as requested.
The water damage:
The stacks:
So yes, external breast....
This is a pic of a chimney on a local new house. Yes, it has lead trays which I couldn't do without a rebuild but it has the lead sheeting at...
I'm trying to copy this set up so am resurrecting an old thread.....
I need advice on the connection to the boiler which sadly this thread doesn't give. This is the thermostat connection in the boiler (N,LS,LR):
This is presently connected to the mechanical timer:
How do I use these...