Les excavacions recents a la fortalesa romanorepublicana de Puig Castellar de Biosca han permès recuperar un interessant conjunt de materials constructius, majoritàriament procedents de l’edifici central de l’assentament, que corresponen als revestiments interiors de les seves estances principals (paviments i pintures murals) i a elements de coberta. Es tracta d’uns materials especialment rellevants, per la cronologia de l’assentament, entre el 180 i el 120 aC, i per la seva funció, un punt de control militar i administratiu del moment inicial de la conquesta romana. L’objectiu d’aquest article és presentar una primera aproximació a aquest conjunt, analitzar-ne els materials i tècniques constructives, la seva procedència i paral·lels, per veure, en darrer terme, com els models i materials constructius emprats a Puig Castellar, d’un cert luxe, un alt nivell tècnic i de clara filiació itàlica, són també indicatius tant de l’origen dels seus ocupants com de la funcionalitat de l’establiment.

An interesting assemblage of building materials has been unearthed during the recent excavations at the Roman Republican fort of Puig Castellar of Biosca. They mostly belonged to the central building of the settlement and consist on the interior revetments of the main rooms (floors and mural paintings) as well as parts of the roof. They are especially relevant not only because of the date of this site, between 180 and 120 BC, but also due to the fact that this site was a post of military and administrative control during the earliest period of the Roman conquest of the Iberian peninsula. This paper presents a first approach to this assemblage, its materials and building techniques, provenance and parallels, to ultimately show how the models and building materials used at Puig Castellar, which display a certain luxury, a high technical level and a clear Italic tradition, could also be an indication of the origin of its inhabitants as well as the function of this establishment.