Roman building materials

The Marble Stoa at Hierapolis was a representative marble portico, which was funded by a local elite family in the middle of the 1st century AD. The aim of this paper is to assess the socio-economic dimensions of this building project by a tentative reconstruction of its logistics, schedule and labour force. Pre-industrial construction techniques and the management of building materials and human resources are put into perspective by the comparison with data derived from 19th century building manuals. The
construction effort is estimated in man-hours and man-days. Based on this estimate, a model for the organization of the building site, the most probable duration of the building project and the seasonal demands for unskilled and skilled workers are elaborated. This estimate is finally translated into hypothetical building costs by drawing upon the evidence for wages and prices under the early Empire. The results of this analysis do not only add to our understanding of wider socio-economic processes, but also to a more differentiated assessment of local euergetism in Roman Asia Minor.

We include several ceramic materials used in the private baths of this Roman Villa, located in Spain: clay spacers or tubes for the "concamerationes", the long iron nails that fixed them to the wall, as well as several types of bricks.