I am doing some work on my bathroom, old house, thick stone walls in the UK. I am removing tiles on two walls. I will be applying new tiles to one wall (the one over the shower/bath). The other wall I will be plastering the top half, and finishing the bottom half in tongue and groove cladding, probably MDF. The wall is not an exterior wall.
My question is regarding the plastered wall, I would normally hire a plaster but am going to tackle this myself as it is a small area of 2 meters wide and 1 meter tall. Am I correct in thinking that I should use lime plaster to keep the breathability of the wall? Or should I avoid breathability due to the wall being previously tiled (not breathable), to avoid bathroom moisture/condensation seeping in to the wall?
Any advice would be much appreciated.