Hi, I don't know if this is in the right section. I live in a top floor flat. In the bedroom, there are damp marks on one wall which are circular in shape, halfway down the wall.
They appear when it is raining and disappear over time. Does anyone know what is causing this and how to fix the problem?
Thanks.
They appear when it is raining and disappear over time. Does anyone know what is causing this and how to fix the problem?
Thanks.