If you decide to update the ceiling during the repair, then you will need to remove the existing whitewash layer first.
It should be remembered that the whitewash is not always removed, in some cases it simply shakes on the surface of the ceiling. With such a ravisania, you also close up small defects and cracks. It is necessary to remove the whitewashing if it has become a yellowish shade or has sufficiently strong contaminants. It is also necessary to wash off the whitewashing and when the ceiling was whitewashed with chalk, and it is planned to turn white with lime.