When using new technologies and materials to preserve, extend, or otherwise replace existing architecture one is always faced with the question of how invasive the intervention will be. It is of particular interest because there are so many factors apart from the architect’s own language that need to be considered: the state of the decrepit structure, the types of contemporary materials used, and the ideas the architect wishes to express with the melding of the two worlds. Spanish architect Ferran Vizoso recently completed the restoration of the town church in Corbera d’Ebre near Tarragona, Spain, whose roof structure was entirely non-existent.