INDAGINI DIAGNOSTICHE INTEGRATE EX POST PER IL MONITORAGGIO DI INTERVENTI DI RESTAURO ARCHITETTONICO

Abstract

La diagnostica strumentale in situ ha acquistato, da circa un ventennio, un ruolo determinante nella fase di deï¬ nizione progettuale del restauro architettonico soprattutto conservativo; molto meno diffusa è invece la pratica della sua applicazione in corso o a ï¬ ne d'opera, per veriï¬ care la corretta esecuzione o la validazione degli interventi proposti. L'articolo riporta il caso studio di una campagna diagnostica ex post, realizzata presso alcune coperture lignee di Palazzo Da Varano a Camerino (MC).

Integrated investigations for monitoring of architectural restoration: the case of a wooden roof of Palazzo Da Verano in Camerino (MC)

The  restoration  of  architectural  structure,  especially  in  recent years, has seen an implementation of sensitivity of professionals and practitioners to potentialities of in situ non-destructive diagnostics, especially  in  reference  to  possibility  of  assessment  of  behavioral characteristics and determination of pathological conditions of ma-terials and technological components of historical buildoings, espe-cially of monumental character, and this partly due to entry into force of, although discussed, NNTC'08. However, if the diagnostics has become quite popular even in cur-rent practice of architectural restoration of not signiï¬ cant build-ings, this generally appears to turn ï¬ rst to deserve an evaluating support preventative and predictive, si aimed to assist during the planning; more rare instead is to use diagnostic technologies in order to evaluate the successful implementation and ongoing correspond-ence with directions of the project, and even more sporadic is to use NDT in summary phase, in order to realize a ex post monitoring of effectiveness of intervention, both in terms of adequacy of plan-ning choices and correct implementations. The case of the wooden roofs of some rooms of Palazzo Da Varano in Camerino represents an example of how an integrated ex post diagnostics, created with a mapping of extended diagnostic non-invasive ultrasonic tests, and timely analysis with microinvasive penetrometric test, has have sug-gested guidelines on the appropriateness of the intervention carried out  and  was  able  to  suggest  information  to  establish  small  local improvements, aimed at dealing with one choice is not entirely suit-able kind of wood used for new trusses, such as a replacement of a chain-strut node, before complications such structural problems could escalate into more complex and therefore more costly circum-stances, in terms of risks and associated costs.