CONSERVATION AND RENOVATION TO NZEB OF SILVIO SPAVENTA FILIPPI ELEMENTARY SCHOOL IN AVIGLIANO, POTENZA, ITALY

In Italy, a large part of the public service functions (administrative, educational, health, social services,religious) is carried out in buildings that also represent an important part of the cultural and historical heritage. In terms of sustainability, the preservation of their constitutive and formal characteristics is as important as their renovation, so that they can perform the tasks entrusted to them efficiently and with the lowest consumption of non-renewable energy. The kindergarten and elementary school "Silvio Spaventa Filippi" in Avigliano, an ancient city of about 5,800 inhabitants a few kilometers from Potenza, in the center of southern Italy, is a large and monumental building (2,480 m2 of covered area, above of a lot of 4,680 m2). It has three floors, with a symmetrical pentagonal plan and a central courtyard. Built in the years 1930-35 in classicist style, it was seriously affected by the earthquake of 1980 and, in the following years, it was the object of partial demolition and reconstruction interventions. In present days, the building is in use as an essential part of municipal school services, but needs to be upgraded in terms of fireproofing and functionality, especially from the acoustic perspective. Furthermore, it is very energy-intensive, with annual consumption ranging between 474.70 kWh/m2 and 652.71 kWh/m2, because of the two heating systems of which it is provided. The aim of the research was to verify the following points: 1 – that the analysis had been carried on the stability of the slope on which the school stands; 2 – that all parts of the building were resistant to the earthquake; 3 - that the fire regulations, the acoustics, lighting and those relating to the accessibility were respected. The necessary corrective actions were designed following the results of the analyzes. Furthermore, the requirements of the most recent school regulations regarding the enhancement of activities have been introduced. Finally, intervention have been designed to make the building energy efficient, so that it can be classified as nZEB, nearly Zero Energy Building, according to the Directive 2010/31/EU. Its energy consumption has thus been reduced by 93-94%, bringing them to 32.37-40.76 kW/m2 per year. All this, while renewing its appearance and respecting its formal characteristics, as an important part of the monumental heritage of the city.