Damp Proofing

Why is the humidity in our single brick victorian house so high?

Anonymous user 23/02/2024 - 2.52 PM

Hi, I have a 2 bed flat which is on the ground floor of a detached victorian house which has single brick construction. Our humidity levels are regularly over 70%, a constant musty smell if the windows are not open and have had mould on some of the external walls. The master bedroom has an en-suite and we have another bathroom (but only use one of them). We do dry clothes in the flat but this is max 3 loads a week. we have a really good dessicant dehumidifier which helps to reduce humidiy when running. What I can't understand is why our humidity levels are so persistently high? I've checked for rising damp but the walls are all dry even when it rains, the window seals look ok. I've been told we dont generate any more humudity than a normal house hold. the master bedroom has 1 external wall and the 2nd bedroom has 3 external walls, which are all very cold. We are considering getting thermal wall paper but it feels like a shot in the dark if we can't identify where the humudity is coming from? any ideas?