So the cursed cupboard as i now call it has been a problem for a while. It lies under a roof terrace and for a while i assumed that therein lay the problem. After great difficulty re-felting the roof and then moving an outlet pipe that ran through the cupboard it seemed the problem had dissapeared. But having put plasterboard back into the cupboard it soon became damp and now totally covered in mould. This seems a bit excessive to be caused by just condensation though perhaps i should get a de-humidifier? Could it be leftover moisture in the walls that is now spreading. The wood below the roof is rotten and the whole cupboard is now dangerously mouldy. Help please!!! Happy to answer any questions.
Its an interior cupboard in a bedroom below the roof terrace. The walls are brick. There are water pipes running down the cupboard but have had the roof terrace and pipes re-done since the problem first occurred 2 years ago.
Is it possible its just from condensation and initial damp in the walls that was never properly got rid of?