Interventions on the built-up often involve complex and large-scale realities, just think of the great abandoned industrial areas or historic cities of large cities with a significant cultural and artistic value. The project you want to address concerns instead a reality on a lesser scale but not least for this. Our territory is composed of almost ¼ of the municipalities with a population of less than 1,000 inhabitants, so it can be seen how many can be the cases of intervention on buildings belonging to small built-up or poorly maintained buildings belonging to a urban fabric dating About fifty years ago. Often, these are buildings without particular elements worthy of prestige and preservation and therefore are not subject to any kind of constraint, or belonging to rural and agricultural realities, whose disappearance is ever increasing. To intervene on constructed means therefore not to underestimate the opportunity to act consciously on a heritage whose degradation and abandonment would lead to an inevitable loss of site identity and an impoverishment of the quality of the building. In this respect, projects are mainly concerned with the retrenchment, reuse and restructuring of properties and the ability to keep them technologically and performancely efficient. Taking inspiration from the initiatives promoted by Regione Lombardia for the energy efficiency of public buildings, it was thought to focus on the reality of the Municipality of Cassina Valsassina, a village with about 476 inhabitants in the Province of Lecco and in particular, Municipal administration to intervene on the host building the town hall and other public services. The theme promoted by the Lombardy Region, which proposes a reduction in energy consumption of buildings, is an opportunity to promote a retraining action that favors durability and sustainability. The National Building Park is made up of 78% buildings built before the first building energy efficiency law that dates back to 1977, the next of 1991 (the one to which reference is still made today) contained limits on the enclosure, Defined in 1986, which led to transmittances very distant from the present limits. Only a small part of the 10 million buildings built prior to 1991 would already be a major achievement: for the environment, for the quality of life, for security and not for the economy of both the individual and the country. It could get easier from energy suppliers. Precisely in the perspective of sustainability, a project focuses on starting from energy diagnosis, indispensable to providing all the elements useful to intervene in a cost-effective and effective way, thus achieving maximum benefits, goes through design solutions carefully thought out with the help of the protocol of LEED certification. An added value that allows to evaluate the environmental impact of the building not only with regard to energy conservation in operation, but above all, the containment of the impact generated by constructive choices and the management of the site, to assess choices that allow a greater User's well-being.
L’intervento sul costruito spesso coinvolge realtà complesse e a vasta scala, basti pensare alle grande aree industriali dismesse o a centri storici di grandi città con un rilevante valore culturale e artistico. Il progetto che si vuole affrontare riguarda invece una realtà a scala meno vasta ma non per questo meno significativa. Il nostro territorio è infatti composto da quasi ¼ dei comuni con popolazione inferiore a 1.000 abitanti, si immagini quindi, quanti possano essere i casi d’intervento su edifici appartenenti a piccoli nuclei edificati o a edifici in cattivo stato di manutenzione appartenenti ad un tessuto urbano risalente ad una cinquantina di anni fa. Spesso si tratta di edifici senza particolari elementi degni di pregio e conservazione e per questo non sottoposti a nessun tipo di vincolo, oppure appartenenti a realtà rurali e agricole, la cui scomparsa è quanto mai in crescita. Intervenire sul costruito significa dunque non sottovalutare l’opportunità di agire consapevolmente su un patrimonio il cui degrado ed abbandono porterebbe ad un inevitabile perdita di identità dei luoghi ed ad un impoverimento della qualità dell’edificato. In quest’ottica i progetti sono per lo più volti alle ipotesi di riqualificazione, riuso e ristrutturazione degli immobili nonché alla possibilità di mantenerli efficienti dal punto di vista tecnologico e prestazionale. Prendendo spunto dalle iniziative promosse da Regione Lombardia per l’efficientamento energetico di edifici pubblici, si è pensato di concentrarsi sulla realtà del Comune di Cassina Valsassina, un borgo con circa 476 abitanti in Provincia di Lecco ed in particolare, di comune accordo con l’amministrazione comunale di intervenire sull’edificio ospitante la sede del municipio ed altri servizi pubblici. Il tema promosso da Regione Lombardia che propone una diminuzione dei consumi energetici degli edifici si configura come opportunità per promuovere un intervento di riqualificazione che favorisca la durabilità e la sostenibilità. Il parco edilizio nazionale è costituito da edifici per il 78% costruiti antecedentemente la prima legge sull’efficienza energetica in edilizia che risale al 1977, la successiva del 1991 (quella a cui ancor oggi si fa maggior riferimento) prevedeva dei limiti sull’involucro, definiti nel 1986, che portavano ad avere trasmittanze molto distanti dai limiti attuali. Riqualificare anche solo una minima parte dei 10 milioni di edifici costruiti prima del 1991 sarebbe già un grosso successo: per l’ambiente, per la qualità della vita, per la sicurezza e non ultimo per l’economia sia del singolo utente che del paese che potrebbe svincolarsi più facilmente dai Paesi fornitori di energia. Proprio nell’ottica della sostenibilità si concentra un progetto che partendo dalla diagnosi energetica, indispensabile per fornire tutti gli elementi utili per intervenire in modo conveniente ed efficace, ottenendo così i massimi vantaggi, passa attraverso soluzioni progettuali pensate attentamente con l’ausilio del protocollo di certificazione LEED. Un valore aggiunto che permette di valutare l’impatto ambientale dell’edificio non solo per quanto riguarda il contenimento energetico in esercizio ma soprattutto, il contenimento dell’impatto generato dalle scelte costruttive e dalla gestione del cantiere, fino a valutare scelte che consentano un maggior benessere dell’utilizzatore.
Riqualificazione energetica di edificio pubblico per uffici green energy audit e protocollo di certificazione Leed. Il caso del municipio del comune di Cassina Valsassina
CASARI, ROSSANA
2016/2017
Abstract
Interventions on the built-up often involve complex and large-scale realities, just think of the great abandoned industrial areas or historic cities of large cities with a significant cultural and artistic value. The project you want to address concerns instead a reality on a lesser scale but not least for this. Our territory is composed of almost ¼ of the municipalities with a population of less than 1,000 inhabitants, so it can be seen how many can be the cases of intervention on buildings belonging to small built-up or poorly maintained buildings belonging to a urban fabric dating About fifty years ago. Often, these are buildings without particular elements worthy of prestige and preservation and therefore are not subject to any kind of constraint, or belonging to rural and agricultural realities, whose disappearance is ever increasing. To intervene on constructed means therefore not to underestimate the opportunity to act consciously on a heritage whose degradation and abandonment would lead to an inevitable loss of site identity and an impoverishment of the quality of the building. In this respect, projects are mainly concerned with the retrenchment, reuse and restructuring of properties and the ability to keep them technologically and performancely efficient. Taking inspiration from the initiatives promoted by Regione Lombardia for the energy efficiency of public buildings, it was thought to focus on the reality of the Municipality of Cassina Valsassina, a village with about 476 inhabitants in the Province of Lecco and in particular, Municipal administration to intervene on the host building the town hall and other public services. The theme promoted by the Lombardy Region, which proposes a reduction in energy consumption of buildings, is an opportunity to promote a retraining action that favors durability and sustainability. The National Building Park is made up of 78% buildings built before the first building energy efficiency law that dates back to 1977, the next of 1991 (the one to which reference is still made today) contained limits on the enclosure, Defined in 1986, which led to transmittances very distant from the present limits. Only a small part of the 10 million buildings built prior to 1991 would already be a major achievement: for the environment, for the quality of life, for security and not for the economy of both the individual and the country. It could get easier from energy suppliers. Precisely in the perspective of sustainability, a project focuses on starting from energy diagnosis, indispensable to providing all the elements useful to intervene in a cost-effective and effective way, thus achieving maximum benefits, goes through design solutions carefully thought out with the help of the protocol of LEED certification. An added value that allows to evaluate the environmental impact of the building not only with regard to energy conservation in operation, but above all, the containment of the impact generated by constructive choices and the management of the site, to assess choices that allow a greater User's well-being.| File | Dimensione | Formato | |
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https://hdl.handle.net/10589/134681