In France, humidity is a big problem. In Île-de-France, for example, 25% of the dwellings are affected. If it is not treated, moisture can be a saltpeter on the walls.
The saltpeter (also called stone salt) is a hell for the interior. The whitish deposit under which he presents attacks the walls, takes off the plaster and rots the wood. To get rid of it, you have to show a method. Here’s how to treat the saltpeter.
Dry up the hair lifts
The saltpeter is made up of potassium salt that comes from the water in the groundwater. It is therefore because of the hair lifts that the stone salt manages to get back into the walls. Before you do a surface treatment, you need to dry the walls.
To do this, you have 2 options:
Inject hydrophobic resin into the wall
Make a watertight barrier between the floor and the wall by making a pre-bleed
The second method is much more expensive than the first, but it gives better results. However, it creates a lot of work. This option should be preferred only if you plan to do large jobs.