Persistent damp and mold growth on old interior walls is one of the most frustrating and hard to fix problems that old house owners face, and many traditional repair methods only mask the issue temporarily instead of solving it permanently. Instead of repeatedly stripping off moldy plaster and re painting the wall, you can install a layer of EPS Cement Sandwich Panel directly over the entire damp affected wall surface after you treat the source of the moisture. The closed cell EPS foam core of the panel creates a thermal break that stops the cold damp masonry wall from cooling down the interior wall surface, which eliminates the surface condensation that is the root cause of almost all recurring interior wall mold problems. The panel also creates a completely new dry wall surface that you can finish directly, without needing to re plaster the entire old damaged wall. This renovation method does not require you to demolish any of the original old wall, so it generates almost no dust or construction mess, and the whole room can be fully finished and ready to move back into in less than a week. This is by far the most reliable long term solution for old house owners who have been fighting recurring interior damp and mold issues for many years.