The bedroom has been smelling damp so I mi Ed the wardrobe to find mound growing on the back. Small patch of mound on the wall in the corner (external wall). I'm pretty sure it isn't a damp issue as it is at floor level. Will leaving a bit of a gap between wall and wardrobe prevent it reoccurring?
It could be damp but the best way to tell is treat the patch of mould and then yes, leave a gap so that air can reach the wall and make sure you open the window in the room every day. If the mould comes back then maybe get someone in to have a look at what is causing it.
Quit common, lack of air circulation and possibly not enough heat in general. The air behind will be sitting cold and damp all the time therefore very humid. Make sure the house isn't humid in general, fans used in kitchen bathroom no drying washing, ventilate Daly and all the usual. And improve air circulation as above
Exact same thing happened in our back bedroom. We had to redecorate because the wall paper was ruined. For us definitely a condensation issue, we now have a dehumidifier running and I'm amazed at the amount of water it collects.