This paper presents a different point of view on the conservation of the built heritage, adding ionizing radiation to the most well-known digital documentation dataset. Igneous building materials characterize most of the built heritage in the Campania region, and in a large part of southern Italy. The ionizing radiations proceeding from these materials can produce stochastic biological effects on the exposed living beings. The research team designed and tested a technical-scientific protocol to survey and analyse this natural phenomenon in association with the use of geological material for building purposes. Geographical Information Systems (GISs), City Information Modelling (CIM), and Building Information Modelling (BIM) are the digital tools used to manage the construction entities and their characteristics, and then to represent the thematic data as false-colour images. The emission spectra of fair-faced or plastered materials as a fingerprint of their nature is proposed as a non-invasive method. Due to both the huge presence of historical buildings and an intense touristic flow, the main square of Pompei has been selected as a study area.

The study of the Pompeii clothes, representative of the wider Roman culture, is carried out starting from the graphic analysis of the classical iconography of the MANN (National Archaeological Museum of Naples) in comparison with historiographical sources, by means of the representation of the main patterns of women's clothing in use by the Romans and their respective decorative and chromatic motifs, also in relation to the fibres of which the fabrics were made. This study, which also makes use of data obtained from the photogrammetric survey of a selected number of textile finds belonging to the "MANN Textile Collection", provides an unpublished archive of the main clothing patterns, codifying in technical drawings (paper patterns) the unconventional rules that the ancient Romans at that period used to make clothing on the basis of knowledge, practical experience and customs (dressing rituals) specific to the culture of the time. The flat development of each clothing patterns is entrusted to the geometric accuracy of the paper pattern, is proportionate to the anthropometric measurements of the woman of the Roman age (female normotype) and represented to scale.