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The accumulation of moisture and mould on the walls of the house is not only an aesthetic problem, but also exposes us to the risk of respiratory diseases and, in some cases, can also pose a threat to the structure of our home.
Saltpeter is a deposit of mineral salts that is formed when the potassium nitrate contained in the building materials comes into contact with oxygen and excess moisture.
This phenomenon is easy to recognize: the saltpeter appears in the form of whitish crystals on the surface of the walls and causes the color to drop.
Eliminating the problem of accumulation of mould and saltpeter on the walls of houses is not easy, as there are no targeted products that can act without damaging the paint.
Below is a trick that is certainly one of the most effective. You need:
1 metal brush
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