When we started building the house, we did not measure the diagonals of the foundation, and decided to measure on the next floor, and it turned out that the diagonals did not match. As a result, I now have a difference between the walls of the first and second floor to 5 cm.
How to level out this difference?
Before starting the facade works make cords, then during the gluing of insulation on the facade of the house taking into account the thickness of the insulation to align all the unevenness of the walls. Foam polystyrene is cut with a beam saw with a cutting edge of nichrome wire, mineral wool is re-cut with a steel wire with notches.
The gap in the ventilated facade will hide the difference.