Im. Ezeonu et al., EFFECT OF RELATIVE-HUMIDITY ON FUNGAL COLONIZATION OF FIBERGLASS INSULATION, Applied and environmental microbiology, 60(6), 1994, pp. 2149-2151
Fiberglass duct liners and fiberglass duct boards from eight buildings
whose occupants complained of unacceptable or moldy odors in the air
were found to be heavily colonized by fungi, particularly by Aspergill
us versicolor. Unused fiberglass was found to be susceptible to fungal
colonization in environmental chambers dependent upon relative humidi
ty. No colonization was observed at relative humidities below 50%.