I rent a room in a shared house and recently I have noticed mold and mildew behind the bed, behind the wardrobe up the walls and the ceiling (the walls are sodden). I have noticed my books and clothes have also become moldy. When I reported this to my landlord he seemed concerned and said it was a problem with the guttering. I am moving out in a few weeks and he has just texted me to say it is due to condensation and suggested I open my window. I am worried that I won't get my deposit back is there anyone who can advise me on this problem.