The reduction of energy loss in the buildings from the sixties and seventies is one of the objectives set by the European standards and research programs in the near future. It is therefore increasingly important to define intervention strategies taking into account the cost-benefit analysis even considering the tax relief provided in different countries, especially in Italy, for the retrofitting. The paper presents the results of an investigation on a social housing district built in the 70s in Palermo by means of industrial technologies and energy characteristics similar to most of the residential buildings of the same period, not being entered into force the regulations on energy savings. After analyzing the heat loss data by conduction, ventilation and thermal bridges, for an entire building, we have chosen a series of interventions on various technical elements and components of the envelope (exterior walls, floors, roofs, windows, glasses, etc.). Among the various interventions, the most sustainable ones were considered, improving the environmental quality such as green roofs and green walls. Then the costs of these interventions and the possible compatible combinations were calculated, obtaining a series of actions, grouped into three strategies dened “enough”, “good” and “excellent”, in relation to sustainability and the amount of energy savings achieved by the standards provided by law. The projections of the costs- benefits of the several strategies identified were calculated in the short, medium and long term, taking into account tax benefits varying from 65% in 2014. The results of the study can be an useful tool for users, administrators and real estate investors, public or private, to choose the best intervention on the basis of available budget or energy improvements to be achieved. This study could easily be extended to the whole neighborhood and provide a model applicable to a large scale, in other contexts.

Energy retrofitting strategies for residential buildings in Palermo

BASIRICO', TIZIANA;
2014

Abstract

The reduction of energy loss in the buildings from the sixties and seventies is one of the objectives set by the European standards and research programs in the near future. It is therefore increasingly important to define intervention strategies taking into account the cost-benefit analysis even considering the tax relief provided in different countries, especially in Italy, for the retrofitting. The paper presents the results of an investigation on a social housing district built in the 70s in Palermo by means of industrial technologies and energy characteristics similar to most of the residential buildings of the same period, not being entered into force the regulations on energy savings. After analyzing the heat loss data by conduction, ventilation and thermal bridges, for an entire building, we have chosen a series of interventions on various technical elements and components of the envelope (exterior walls, floors, roofs, windows, glasses, etc.). Among the various interventions, the most sustainable ones were considered, improving the environmental quality such as green roofs and green walls. Then the costs of these interventions and the possible compatible combinations were calculated, obtaining a series of actions, grouped into three strategies dened “enough”, “good” and “excellent”, in relation to sustainability and the amount of energy savings achieved by the standards provided by law. The projections of the costs- benefits of the several strategies identified were calculated in the short, medium and long term, taking into account tax benefits varying from 65% in 2014. The results of the study can be an useful tool for users, administrators and real estate investors, public or private, to choose the best intervention on the basis of available budget or energy improvements to be achieved. This study could easily be extended to the whole neighborhood and provide a model applicable to a large scale, in other contexts.
9780991060818
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/11387/93926
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact