ABSTRACT
The conservation of the historic roof structures is linked with: (i) the totality of the technological phases, through which the technical state of the load-bearing structure is maintained after the intervention (including the introduction of temporary props), (ii) the checking of the state of preservation of the sub-units of the load-bearing structures (e.g. renewal of the protection against corrosion, biological decay or fires), (iii) works related to the building construction sub-units, which protect the load-bearing structures.
