Statistical survey of the inspection, diagnosis and repair of painted rendered façades

This paper presents a statistical study on the pathology of painted rendered façades, based on the inspection of 105 façades, in Lisbon, Portugal. Accordingly, the most common types of anomaly in painted renders, their probable causes, related diagnostic tests and repair techniques were studied, using the classification defined in an ‘inspection, diagnosis and repair system’, which was developed to simplify and facilitate the inspection procedure. Some conditioning parameters were evaluated, which provided additional information on the sensitive key factors of this kind of coating and enabled new conclusions to be drawn on the prevention and repair of anomalies.