The presence of damp is a key factor in the development of pathological processes.

In any building, damp of many different types can be found, such as capillarity, condensation, and leakage into and out of it. The study of types of damp begins with a detailed inspection of the zone and its surroundings, the taking of samples of precipitates through material (salts, water), analysis of the water-related behaviour of materials, and analysis of hygrometric parameters and constructional details.

After analysing these factors a diagnosis can be made of the type of damp and its source and then establishing the most appropriate repair solutions.