Characterisaton of the indoor microclimate within the historic archives of a cultural institution in the megacity of São Paulo (Brazil) in the perspective of preventive conservation.
Résumé
One of the reasons that explains the importance of developing research in the area of indoor
microclimate is the concern with the conservation of cultural artefacts. This work presents and discusses
the indoor microclimate of the archives of a cultural organisation located in the megacity of São Paulo,
Brazil, as well as its links with the local outdoor climate. The results show that there are significant
differences between the two monitored areas. The archive where a basic air-conditioning system is installed
exhibits effective control on the temperature but with negative impacts on relative humidity, mainly in
terms of short-term stability. The archive with no active control on T and RH displays a better performance
with potentials for preventive conservation strategies aligned with the current trends toward sustainability.