Vorm en context: Over de rol van authenticiteit bij het waarderen van modern erfgoed

Authenticity is a key criterion in the evaluation of heritage. This article sets out to show that this concept is problematical when applied to more recent architecture, particularly when it is linked to the original materialization. The way authenticity is normally assessed can prove especially tricky when it is a precondition for preserving an object or site. Contrary to what one might expect, the preservation of original materials is more challenging with recent than with old architecture. There are several reasons for this.

One is the Modern Movement’s predilection for using experimental building methods and new materials, which all too often failed to withstand the ravages of time. It is also difficult, if not impossible, to preserve such experimental materials when a building is expected to satisfy contemporary requirements, for example in the area of energy efficiency. This raises the question of whether the replacement of authentic building materials during restorations and renovations compromises the heritage value. Using examples in Amsterdam and Rotterdam, the article shows that this does not always have to be the case.