The adaptation in terms of sustainability of districts designed and built in Italy by architects of national reputation, between the 70s and 80s, among which Corviale, Laurentino, Gratosolio, Secondigliano and not least ZEN 2, was one of the most debated issues in recent years in terms of construction and urban redevelopment. Between the two sharply contrasting hypotheses: the demolition and reconstruction or the entire conservation for those districts with recognized architectural value, the third way is the requalification through a set of moderate interventions, economically acceptable, also allowing for the improvement of the building energy performance, while respecting the architectural features. The paper reports the results of the study carried out for the ZEN 2 district (Zone of North Expansion) in Palermo designed in 1970 by the group led by Vittorio Gregotti, winner of the national competition, characterized by being made by several companies over a period of about a decade. The area is well-known as a symbol of a state of physical deterioration and social alienation, not being solved with simple building maintenance.Based on the analysis of the status quo and making use of original archival documentation of the designers, contractors and IACP in Palermo, for all the building components of the envelope, the thermo-physical parameters were verified, with the aid of qualitative and quantitative instrumental analysis (thermography, heat flow analysis, thermohygrometry), thus being able to detect the real thermal dispersions and any thermal bridges. By comparing the data of testing on various buildings in the district, typologically the same, but built with different techniques and materials, and the parameters imposed by law on energy saving, it was possible to establish the necessary measures to improve efficiency. The research was completed with cost analysis and consumption saving achieved over time. The proposed solutions contribute not only to the improvement of the energy requirements of buildings, but also a significant mitigation of environmental degradation through systems of paths, roofs and green walls in one of the most flourishing area of the countryside of Palermo, once.

Sustainable retrofitting of the '70s public housing. An application to the ZEN 2 district in Palermo

BASIRICO', TIZIANA;
2013

Abstract

The adaptation in terms of sustainability of districts designed and built in Italy by architects of national reputation, between the 70s and 80s, among which Corviale, Laurentino, Gratosolio, Secondigliano and not least ZEN 2, was one of the most debated issues in recent years in terms of construction and urban redevelopment. Between the two sharply contrasting hypotheses: the demolition and reconstruction or the entire conservation for those districts with recognized architectural value, the third way is the requalification through a set of moderate interventions, economically acceptable, also allowing for the improvement of the building energy performance, while respecting the architectural features. The paper reports the results of the study carried out for the ZEN 2 district (Zone of North Expansion) in Palermo designed in 1970 by the group led by Vittorio Gregotti, winner of the national competition, characterized by being made by several companies over a period of about a decade. The area is well-known as a symbol of a state of physical deterioration and social alienation, not being solved with simple building maintenance.Based on the analysis of the status quo and making use of original archival documentation of the designers, contractors and IACP in Palermo, for all the building components of the envelope, the thermo-physical parameters were verified, with the aid of qualitative and quantitative instrumental analysis (thermography, heat flow analysis, thermohygrometry), thus being able to detect the real thermal dispersions and any thermal bridges. By comparing the data of testing on various buildings in the district, typologically the same, but built with different techniques and materials, and the parameters imposed by law on energy saving, it was possible to establish the necessary measures to improve efficiency. The research was completed with cost analysis and consumption saving achieved over time. The proposed solutions contribute not only to the improvement of the energy requirements of buildings, but also a significant mitigation of environmental degradation through systems of paths, roofs and green walls in one of the most flourishing area of the countryside of Palermo, once.
9788864930206
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11387/38128
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact