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Mould susceptibility of bio-based insulation materials in modern construction

Joni Wildman, Andrew Shea, Valeria Cascione +1 more2026npj Materials DegradationJournal Article
10.1038/s41529-026-00742-7Free full text
Indoor Mold (Stachybotrys, Aspergillus, etc.)

Abstract

Abstract This review compares the mould susceptibility of bio-based and conventional insulation. Mould growth poses a risk to building durability and occupant health, with bio-based materials being more susceptible due to their organic composition. However, testing practices limit meaningful comparisons, and laboratory studies often fail to replicate real-world conditions. Recommendations include standardised testing, in-situ monitoring and field studies, and development of antifungal strategies to understand and address mould risk across insulation options.

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