Plastered or unplastered. Regardless the surface if you want to know what our experts suggest have a look at these guidelines.
Determine the condition of the surface and what type of paint was previously applied.
Test all surfaces with a moisture meter. If moisture is 15% or less, then:
Determine the condition of the surface and what type of paint was previously used.
Where walls are sound and moisture content is 15% or less.
Ensure that the condition of the substrate is sound e.g. cement plaster is not friable.