IRI Mold Specialist Practice Exam 2025 - Free Mold Specialist Practice Questions and Study Guide

In newly constructed buildings, the typical indoor level of mold spores is often higher than outdoor levels due to several factors. One major reason is that the construction process can introduce materials that are conducive to mold growth, such as wet wood, insulation, and other organic materials that may harbor spores. Additionally, indoor environments can have less airflow and ventilation compared to the outdoor environment, which allows spores to accumulate more easily.

Another contributing factor is that indoor conditions, like humidity and temperature, can be maintained at levels that are favorable for mold growth. In newly constructed buildings, if moisture is not adequately managed and ventilation is insufficient, it creates an ideal breeding ground for spores. While outdoor levels can fluctuate due to weather and environmental conditions, newly constructed buildings can often maintain consistently higher indoor levels until proper ventilation and moisture control measures are implemented.

Thus, it is accurate to state that indoor levels of mold spores in newly constructed buildings tend to be higher than those found outdoors, highlighting the importance of proper design and construction practices to mitigate mold growth.