Many places have a long experience in dealing with cold, which my country lacks, hence I’m asking here for advice. The default solution was either endure it or burn more wood.
I may be able to shave off one or two centimeters of the total volume required as the walls are currently covered with a very thick layer of cement that was set with no concern to prior levelling the stone (in places where the mortars started to fail I chipped away to clear the loose material and there are spots where 2 to 3cm of cement could be saved just by grinding away an edge of a stone) but going by the solutions my market has available, I risk needing to layer up to 10cm of material on my walls.
I do intend to insulate floor and ceillings as they will be, for all practical purposes, rebuilt, as the current wood floors are thin.
The house is squeezed between a pedestrian street, where I can’t encroach, as there is little room already, and another house. I do have one wall I intend to insulate from the outside as it faces an empty plot.
Mineral wool I have been looking into it but I was warned it wicks moisture. Is this true?