The damp invariably comes up or across.
So check that the DPC is intact and if not it might be fair to assume that debris has breached the cavity.
Pictures always help though as the location and patterning of the damp areas sometimes tell the tale.
All good advice here about proper ventilation and condensation.
However, I did see a roof space once which was very damp.
Turned out that the well meaning owner had insulated himself from the "nasty draughts" coming under the tiles and thus killed all ventilation up there. We added some vents...
Looks like too much water for seepage through the brickwork. However many old stacks had no water barrier.
The obvious shoice would be the flashings.
Get some Mangers "Stop That Leak" to make a temporary fix but forget the ceiling until this is sorted.
(You might try to exose the tile line...
Sounds really odd at first reading this one.
Do you have any pictures?
Cavity walls have been used to retain sail before but they are usually reinforced anyway. Have you looked outside to check what the overall thickness of the wall is?
I have replaced wall ties before but always try not...
This is a bit "off the wall" Ha Ha!
However, you might think about replacing the wooden skirting with an upstand of tiling.
People often want floors tiled so that they can be washed etc and water gets into the gap between the skirting and the floor. After a a while it gives off a musty...
Why make life harder for yourself?
Keep your lovely oak skirtings safe while the decorating goes on. Then lay your laminate then you can ensure adequate expansion around the edges and fix a nice sharp skirting line above.
Have fun! :wink: