Abstract Fieldwork was conducted on 138 energy efficient buildings, to check if building site practices induced exposure to weather of thermal insulation. In nearly 80% of cases, insulation was exposed to weather due to insufficient protection. Therefore insulating wools were exposed, divided into three parts (control, exposure under shelter, exposure to weather). After the exposure period these samples were submitted to thermal conductivity measurements and infrared spectroscopy. A numerical study was carried out to evaluate the influence of weather conditions on thermal performance. Identifications of molds were realized by direct cultures of each sample. Mycological analyses provided the most significant results, showing a significant effect of exposure condition, with possible consequences in human health (toxinogenic, allergenic or pathogenic species) and material properties (cellulolytic species). Infrared spectrometry also showed some changes in sensitivity to water. These results show the interest to study in more detail the variations in the sensitivity, to moisture and mold, of insulation material throughout its ageing on site, and the interactions with the practices of the building process.

中文翻译：

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环境暴露对保温棉热学和真菌学特性的影响

摘要 对 138 座节能建筑进行了实地考察，以检查建筑工地的做法是否会导致暴露于隔热天气。在近 80% 的情况下，由于保护不足，绝缘材料暴露在天气中。因此，绝缘羊毛暴露在外，分为三个部分（控制、遮蔽暴露、暴露于天气）。在暴露期之后，对这些样品进行热导率测量和红外光谱分析。进行了数值研究以评估天气条件对热性能的影响。霉菌的鉴定是通过每个样品的直接培养来实现的。真菌学分析提供了最显着的结果，显示了暴露条件的显着影响，可能对人类健康产生影响（产毒、过敏或致病物种）和材料特性（纤维素分解物种）。红外光谱也显示出对水的敏感性发生了一些变化。这些结果表明有兴趣更详细地研究绝缘材料在现场老化过程中的敏感性、水分和霉菌的变化，以及与建筑过程实践的相互作用。