Mold Assessment Technician Practice Exam

What should be done if concrete or cinder block surfaces are impacted by clean water?

1. Remove water with extraction vacuum

2. Allow natural drying without action

3. Apply sealant to prevent moisture

4. Cover with plastic sheeting

The correct answer is: Remove water with extraction vacuum

When concrete or cinder block surfaces are affected by clean water, the best action is to remove the water with an extraction vacuum. This method effectively removes excess moisture, preventing it from seeping further into the material or causing potential damage over time. While concrete and cinder block are porous and can absorb water, prompt action is essential in mitigating any long-term effects such as mold growth or deterioration of the structural integrity. Allowing natural drying without intervention can lead to prolonged exposure of the material to moisture, which is not ideal. Applying sealant may be useful in the long term for prevention, but it should not be the first step during immediate water intrusion events, as it does not address the existing moisture problem. Covering with plastic sheeting could lead to trapped moisture, creating a breeding ground for mold, as it does not facilitate effective evaporation or removal of the moisture present. By removing water efficiently and quickly, you minimize the risk of further moisture issues and mold development, making the use of an extraction vacuum the preferred method in this scenario.