How to clad the white tank basement from the inside?

Good morning.

My house has a basement consisting of a white bathtub [Weisse Wanne] and masonry walls made of Ytong stones. I want to make the larger room a bit more livable in the near future. I will probably just plaster the interior Ytong walls (for example with Ardex A 828), but I am unsure what to do with the exterior walls of the basement. I have two of those. My first thought was to provide the walls with battens and then cover them with drywall so that the electrical installation could also be done in the hollow space. On the other hand, we are still dealing with an ordinary basement room where surface-mounted electrical installation is also acceptable. So, one could basically plaster and paint the exterior walls the same way as the interior walls. Is there any argument for or against this, or which method would be best?

Hello "Rollo83". The best method before thinking about installations is to work out the weak points of the building structure and first tackle those thoroughly. What sense does a WU concrete floor slab make if the water exposure after backfilling the excavation or the terrain typology are not known? Is it known how the plinth footing was sealed? Are the exterior walls sealed at all, are they exposed to the open air or are they in contact with the ground? It is no coincidence that the German Concrete and Construction Technology Association has issued a clear summary of leaflets on the [H]igh-quality use of basements[/H]! They describe the basics that refer to the necessary sealing and thermal insulation technology. It is of little use to think about the later positioning of speakers and the laying of cables if the basics are ignored and the user later has to pursue their hobby wrapped in a thick blanket in a damp and cold environment. And: Before you think about internal insulation, be sure to inform yourself about the necessary standard construction of such a wall. Otherwise, there may be extremely nasty surprises that you do not think about today. Simply browsing public forums may provide answers, but also the (high) risk of harmful construction. ------------------------- Well meant: KlaRa