Texas Mold Assessment Consultant Practice Exam

According to the EPA guidelines, fiberglass insulation damaged by clean water for less than how many hours should be discarded?

1. 24 hours

2. 36 hours

3. 48 hours

4. 72 hours

The correct answer is: 48 hours

According to EPA guidelines, fiberglass insulation that has been exposed to clean water should be discarded if it has been wet for more than 48 hours. This recommendation is based on the understanding that moisture in insulation can lead to mold growth and compromise the material's effectiveness. If the insulation remains wet for an extended period, even with clean water, there is a significant risk of microbial growth, which can create health hazards and structural issues. The 48-hour guideline represents a critical threshold; if the insulation is not removed and dried within that timeframe, the potential for mold colonization increases, making disposal necessary to maintain a safe and healthy indoor environment. Proper moisture management and prompt response to water damage are essential best practices in mold prevention, particularly in homes and buildings where fiberglass insulation is commonly used.