Urgency of repair of building elements: Prediction and influencing factors in façade renders

Abstract

Within building inspection, determining the urgency of repair depends on varying factors (e.g. risk, progression conditions and façade importance). This study analyses the urgency of repair of defects in rendered façades based on the inspection of 52 surfaces where 94 defects were detected, defining a methodology to predict the repair urgency of defects and building elements. Descriptive statistics are applied, and principal components and cluster analyses are performed. Through multiple linear regression, “repair urgency” is predicted as a function of the defects’ characteristics, which are, in the best prediction model, “defect percentage area”, “type of defect” and “type of façade”.