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Criteria for the reduction of environmental impact applied in the Roman Theatre of Itálica

In the majority of studies carried out until now Life-Cycle Assessment (LCA) has been used according to a methodology based on the final evaluation of an already finished design. This article proposes a new approach of using LCA as an evaluation tool at the time of design, so making environmental-impact reduction criteria part of the decision-making process in projects so that they affect the final outcome.

Criteria for the reduction of environmental impact applied in the Roman Theatre of Itálica
This is a live performance in the Roman Theatre of Italica (Sevilla), Spain
[Credit: Universidad de Sevilla]
However, very few studies apply Life-Cycle Analysis to heritage interventions. Taking into account the value of heritage building is necessary for planning intervention proposals with minimal environmental impact. On this matter, researchers from the Seville Higher School of Architecture have published a study in which they apply the methodology of LCA to the Roman Theatre of Itálica. Specifically, they have developed tools that link LCA and BIM software so that environmental-impact reduction criteria can be integrated into projects from the moment of their first design.

"Since 2011, we have been carrying out an intervention in the Roman Theatre of Itálica that allows it to be used as a space for contemporary dance and theatre, so that it can hold the International Dance Festival that is organised by Seville's provincial authority (diputación provincial). The elements that have been designed, and that are some 14 metres above the stage to support the electro-acoustic equipment, are totally removable and allow the theatre to recover its original appearances when there are no performances. For the design of the final solution LCA tools were used, which, as indicated in the article, allowed the final configuration to be adjusted", explains the University of Seville teacher, Juan Carlos Gómez de Cózar.

"Basically, the strategy of being able to reverse the intervention means that the piece of heritage can be returned to its original configuration if necessary. On the other hand, the use of LCA tools allows for the minimisation of environmental impact that a specific solution produces as opposed to other design options, thus making it possible to carry out heritage interventions that give the piece of heritage value and use and extend its useful life", adds a member of the research group TEP-130 'Architecture, heritage and sustainability: acoustics, illumination, optics and energy".

Life-cycle assessment

From the environmental point of view, life-cycle assessment applied to buildings makes it possible to calculate the impact of a building over its whole life cycle. To achieve this, every phase of this building is studied (production, construction, use, demolition and end of life) and its impact is measured in different categories, such as, for example, GWP (global warming potential). In this way, it is possible to take into account the complete impact that a building produces, both when it is being built and demolished (including both the materials and the processes that are necessary for the work) and when it is in use (if the design is not correct, the building will use a lot of energy for heating, air conditioning, lighting, etc.).

The study is published in the Journal of Cleaner Production.

Source: University of Seville [March 11, 2019]


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