ABSTRACT

The preservation of historic churches and their most precious artefacts usually includes a monitoring campaign of the indoor microclimate conditions. This research presents the information that can be obtained through the application of a novel set of risk indices to the monitored data acquired in a Baroque church of the 18th century in Italy. The main risks found with this comprehensive methodology, i.e. the biological risk that induces the growth of mould and the chemical and mechanical risks due to unsuitable indoor parameters, would not have been identifiable using the traditional approach based on the National UNI 10829 Standard. Indeed, such an approach only shows that indoor air temperature (below 15°C for 71% of the time) and relative humidity (over 85% for 73% of the time) are outside the range suggested for the conservation of the frescoes. On the other hand, the indications provided through risk indices can be used for more detailed information on the nature of the risks to assess, also in the case of a low-resolution monitoring campaign, so as to benefit the conservation of the widespread heritage inventory, for which funding is usually scarce.

摘要

保护历史悠久的教堂及其最珍贵的文物通常包括对室内小气候条件的监测活动。本研究介绍了通过将一组新的风险指数应用于在意大利 18 世纪巴洛克式教堂中获得的监测数据而获得的信息。使用基于国家 UNI 10829 标准的传统方法无法识别使用这种综合方法发现的主要风险，即导致霉菌生长的生物风险以及由于不合适的室内参数导致的化学和机械风险。的确，这种方法仅表明室内空气温度（71% 的时间低于 15°C）和相对湿度（73% 的时间超过 85%）超出了为保护壁画而建议的范围。另一方面，通过风险指数提供的指示可用于评估风险性质的更详细信息，在低分辨率监测活动的情况下也是如此，从而有利于保护广泛的遗产清单，为此资金通常稀缺。