CONSERVATION \ 72w-locl
1: G. Buccellati, August 2010

A chapter of the digital monograph: Site conservation

Protective systems

Alteration
Superposition
Backfill
Broad base and localized shelters

Alteration

     Various interventions can be applied to outdoor elements, which affect the original document with varying degrees of intrusiveness.
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Superposition

     While alteration mechanisms affect the very fabric of the structures, another approach to the protection of stationary structures is to superimpose external covers that shield them from harsh atmospheric agents, the two basic types being backfill and shelters.
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Backfill

     Backfilling consists of covering the exposed original document with dirt, reconstituting in some way the original situation before exposure. The main disadvantage is that the original can no longer be seen, either for the visitor or for monitoring (although the latter is possible by installing special devices).
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Broad base and localized shelters

     When shelters are treated in the literature, it is generally understood that they are intended to roof an entire structure (see, e.g., Agnew 2001, Palumbo 2001). But a qualification is needed once we introduce the alternative possibility of sheltering the individual components and not the whole of which these components are part.
     I use the term "broad base" to refer to the large roofing projects
     I use instead the term "localized shelters" to refer to the system I developed in Mozan, where each wall is protected individually.
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