The bathroom is the room of the house most prone to condensation problems. System D gives its advice to facilitate the renovation of walls with molds that can blacken and blister:
Start by dusting the bathroom aerator
For a neat job, spread a tarp to protect the ground.
Surfaces should be cleaned with a damp sponge (with an anti-mildew product) and degreased before starting work.
Leave to dry well.
Use masking tape to protect the edges of the wall to be painted.
Mix the anti-humidity paint before application.
With a flat brush, start by clearing the edges and corners of the wall to be painted.
Then use the half-long pile roller to cross-coat the rest of the wall surface.
Drying time: 6 hours between the two layers then 12 hours.