This research investigated how exposure to moisture influences the biodeterioration of facade finishes in the hot-humid tropics of Enugu metropolis, Southeast Nigeria. Physical observations and experimental research strategy were used to collect data from 383 buildings in the study area. The data were analysed using descriptive and logistic regression analyses. The results showed that 53.5% were residential buildings and 88.5% had cementitious façade finishes with 66.8% of them having their façade finishes exposed to moisture. Further, 64% of the facade finishes, mainly of cementitious materials and paints were colonized by microorganisms with the most common microbes being fungi. Façade finishes exposed to moisture we found to be four times more likely to experience biodeterioration. The study concludes that in order to curb microbial colonization of façade finishes and the attendant adverse effects, architects should engage in design strategies that can minimize the level of exposure of façade finishes to moisture.

这项研究调查了在尼日利亚东南部埃努古大都市炎热潮湿的热带地区，暴露于湿气如何影响外墙饰面的生物劣化。物理观测和实验研究策略被用来从研究区的 383 座建筑物中收集数据。使用描述性和逻辑回归分析对数据进行分析。结果显示，53.5% 是住宅建筑，88.5% 有水泥外墙饰面，其中 66.8% 的外墙饰面暴露在潮湿环境中。此外，64% 的外墙饰面，主要是水泥材料和油漆，都被微生物定殖，最常见的微生物是真菌。我们发现暴露在湿气中的外墙饰面发生生物劣化的可能性是其四倍。