Life-cycle assessment of a house with alternative exterior walls: Comparison of three impact assessment methods

▸ LCA of a Portuguese single-family house comparing 7 exterior wall alternatives. ▸ Three LCIA methods have been compared: primary energy, CML 2001, Ecoindicator'99. ▸ CML and EI99 present different ranking of wall scenarios between similar categories. ▸ The most significant LC phase and process depend on the operational pattern assumed.