DaveR79

Good afternoon, This is my first time posting a question here so please forgive any mistakes? We bought our house about a year ago (UK) and the whole downstairs is tiled with ceramic floor tiles(poorly laid cracking around doorways). The walls are always extremely cold to touch and so is the floor, we have just moved the storage boxes from under the stairs to find the exterior wall covered in mould all along the skirting and on and in the storage boxes. We are wondering what is causing the mould? Is it a symptom of the heating being on and causing condensation on the cold walls and floor? We are going to replace the flooring with laminate next year, any things to look for and do to prevent the mould returning? Thanks for looking