I know you are a crusader against damp / condensation caused by people drying washing indoors.
I wondered if you could give me your thoughts on rising damp?
I have one wall in my house that suffers for low down patchy damp areas. It’s creeped in slowly over the past 6 months.
I’ve had a few people come in telling me it’s rising damp. One was a damp specialist so I ignored him, the other was a roofer who said that he has experienced similar and believes it to be rising damp.
I’ve always been a sceptic if rising damp having lived in many old properties without damp proof courses but wondering if it’s true and that I will have to succumb and get the damp proofed out?
Check - is the ground outside higher than the floor inside? Is there a flower bed or path that is raised up against the wall? Is the guttering or a down pipe leaking and making the wall wet? Or a pipe in the wall? Or an overflow? No signs of blocked airvents? All these can cause damp.
How high is the damp patch on your wall? Are there any signs of mould? As another poster has said it may be that the ground outside is higher than the floor inside. Have you looked at the cement between the exterior bricks? Have you done any major work in your garden recently? It wouldn't hurt to get a damp specialist in anyway, perhaps 2 and listen to what they have to say. You are under no obligation to commission them.