Any advice for fungus growing on inner walls of a 1930's house? It is at top of walls so I think not rising damp.
If I just re-paint will it re-occur? Is there any treatment I can give before repainting to prevent recurrence?
When I moved in the house had to be re-wired and the electrician fitted a ventilator from the upstairs WC to an outside wall, could the cold air coming in through this be causing the damp/fungus and would blocking it up be any use?
Do I need to keep the rooms affected heated? Better ventilated?...