Steam cleaning is mainly used for light pollution such as moss or ivy on your facade. In this method, water is heated to temperatures above 100 degrees and then sprayed against the wall with a high-pressure sprayer.
With this method, a chemical agent is applied to the facade to remove the dirt. This method is suitable for removing pollution such as paint residue or soot. The chemical water is then recycled.
Blasting is used on facades with heavy pollution. In this method, water is mixed with a mild blasting agent and then applied to the wall. A commonly used medium is sand.
To prevent damage, it is wise to have the facade impregnated after cleaning. By impregnating your facade, you ensure that no more water is absorbed or allowed to pass through the wall.
