Flat roofs renovation: a life cycle approach for environmental impact assessment and economic effectiveness

Contarini, Antonio (2012) Flat roofs renovation: a life cycle approach for environmental impact assessment and economic effectiveness. [Laurea magistrale], Università di Bologna, Corso di Studio in Ingegneria gestionale [LM-DM270]
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The high energy consumption caused by the building sector and the continuous growth and ageing of the existing housing stock show the importance of housing renovation to improve the quality of the environment. This research compares the environmental performance of flat roof systems (insulation, roofing membrane and covering layer) using Life Cycle Assessment (LCA). The aim is to give indications on how to improve the environmental performance of housing. This research uses a reference building located in the Netherlands and considers environmental impacts related to materials, energy consumption for heating and maintenance activities. It indicates impact scores for each material taking into account interconnections between the layers and between the different parts of the life cycle. It compares the environmental and economic performances of PV panels and of different materials and thermal resistance values for the insulation. These comparisons show that PV panels are convenient from an environmental and economic point of view. The same is true for the insulation layer, especially for materials as PIR (polyisocyanurate) and EPS (expanded polystyrene). It shows that energy consumption for heating causes a larger share of impact scores than production of the materials and maintenance activities. The insulation also causes larger impact scores comparing to roofing membrane and covering layer. The results show which materials are preferable for flat roof renovation and what causes the largest shares of impact. This gives indication to the roofers and to other stakeholders about how to reduce the environmental impact of the existing housing stock.

Tipologia del documento
Tesi di laurea (Laurea magistrale)
Autore della tesi
Contarini, Antonio
Relatore della tesi
Correlatore della tesi
Corso di studio
Ordinamento Cds
Parole chiave
Life Cycle Assessment, flat roof renovation, environmental impact, PV panels, economic performance
Data di discussione della Tesi
20 Marzo 2012

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