Maintain
It is important to make an effort to maintain your wall.
If there are cracks in the wall, follow these steps to fix them. First, remove dust from the wall. Sand the cracks to make it smooth. Fill all gaps with the Jotun joint filler. Follow instructions on the label for guidelines on application.
Allow the filler to dry, and sand again. Remove the dust and then apply two coats of paint on the area.