Joni Wildman, Andrew Shea, Valeria Cascione, Daniel A. Henk
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.