Nuovo approccio al progetto diagnostico dell'umidità nelle murature: casi esemplificativi in area lombarda

Water content in walls and the data regarding the water transition between the wall and the surrounding environment (due to evaporation and dew) are fundamental information to draw effective buildings maintenance. Thermal and hygrometric dynamic are responsable of salt crystallization on the surfaces and consequently of its damage. Evaporative flux is the main parameter in damage to look for and its measure validates thermography output. Togheter with chemical-phisisc characterization of materials, the flux allows to evaluate the damage and to forecast the risk areas (even if not evident). The case studies, Corte Castiglioni in Casanatico (MN) and S.ta Maria del Lavello in Calolziocorte (BG), show that the integration of more diagnostic techniques gives the necessary elements to plan intervention.Particularly, thermo-hygrometerical measurement are not in agreedment with on sight examination: the obtained data pointed on the causes and allowed to choose the correct intervention.