International Compliance Association (ICA) Home Inspector Practice Exam

What odor is sometimes caused by Chinese drywall?

1. Fresh paint

2. Rotten eggs

3. Burnt rubber

4. Musty

The correct answer is: Rotten eggs

Chinese drywall has been associated with emitting a distinctive odor similar to rotten eggs, which is often due to the presence of sulfur compounds in the materials used to manufacture the drywall. This issue became prominent in the mid-2000s when large quantities of imported drywall from China were utilized in construction, particularly following hurricanes and other weather events. The odor is not just unpleasant but can also indicate problems such as corrosion of metal components in the home, including electrical systems and plumbing fixtures. Addressing the presence of such drywall may involve significant remediation work, including the removal and replacement of drywall and potentially affected systems to eliminate both the odor and any related hazards. Understanding this connection helps home inspectors identify potential issues related to indoor air quality and materials used in the home, reinforcing the importance of awareness of specific construction materials and their implications.