If you have noticed condensation and damp forming on your internal walls, there are several things that you can do to deal with this problem. First of all, it’s important to understand the potential causes, so come up with a list of all the moisture-causing activities that you perform in the room in question to see what the root cause may be.
Running a dehumidifier in the room is an easy and effective way to improve ventilation and prevent further condensation from forming in the future. If your walls have already been affected by the condensation and have damp patches on them as a result, you may need to treat them with a damp-proof paint or other treatment to dry out the wall and prevent the damp from spreading or returning. Damp-proof paint should be applied and then left to fully dry before wallpapering over it or using a coat of emulsion.
If you are dealing with a room in your home that tends to produce more moisture than the others, such as the bathroom or kitchen, decorate using a paint that is specifically formulated to repel moisture and damp. Most good paint brands will now offer specially designed kitchen or bathroom paint, or durable paint that is not only moisture-repellent but easier to keep clean, making it more ideal for those areas of the home.