A - The kitchen is a room in which relative humidity is very high on the ceiling and unless the heat bridge has been eliminated during construction, condensation problems may arise and mould may form.
B - There are special insulating paints available on the market that avoid the temperature from dropping due to the heat bridge on the ceiling thus preventing the formation of mould.
C - The ideal solution is to add a good thermal insulator to the exterior of the ceiling to completely eliminate the heat bridge and all its negative consequences.