First elements of a research on the analysis of water leakage risk in discontinuous roofing. The calculation of vulnerability

In recent decades the practice of operating after damage occurred has been replaced by planned and preventive maintenance also in building sector. In the field of built heritage management the culture of planned conservation has spread. Since water leakage from roof is one of the most common causes of damage to buildings, the study of roofing is essential. The paper presents the first elements of a research aimed at the definition of a numerical method for the analysis of the risk of water leakage from discontinuous roofing. After a general introduction to the concept of risk in this field, the general principles of the method are defined.