Following the reinvention of terracotta roof tiles in the second quarter of the seventh century BC, most probably in Corinth, the technology spread to other regions of the Mediterranean world. During the third quarter of the seventh century, several local and regional workshops can be identified, at select sites in Greece and in Etruria. By the fourth quarter of the century, decorated roofs are found in other parts of Greece and Italy. The most prolific and highly decorative period is the first third of the sixth century BC, when local workshops actively copied elements from elsewhere and invention of new forms was at its peak. This discussion focuses on the interrelationship between the roofs of different regions, the sharing of technology and of décor, in order to show the special place of Etruscan terracotta roofs in the evolution of this distinctive architectural feature. Etruria not only followed trends in terracotta roofing found throughout the ancient Mediterranean world, but also can be shown to have contributed specific roof elements and types of roof decoration which had a wide impact on later generations of roofs.