Home Inspection State Practice Exam

What should be reported when new vinyl siding backed by rigid foam insulation covers service entrance cable?

1. It is a code-compliant installation

2. It should be recommended for energy efficiency

3. It is an improper installation that should be corrected

4. It may need additional support

The correct answer is: It is an improper installation that should be corrected

When vinyl siding is installed over service entrance cables, especially when backed by rigid foam insulation, it raises significant concerns regarding safety and proper installation practices. The service entrance cable serves as the main entry point for electrical power into a home and is crucial for the safe delivery of electricity. Covering these cables with siding and insulation can obstruct visual inspections, and if there is any damage or wear to the cable, it may go unnoticed. This situation can lead to increased risk for electrical hazards, such as overheating or short-circuiting, since vinyl and foam are not designed to help dissipate heat generated by electrical cables. The National Electrical Code also has specific requirements for the protection and accessibility of service entrance conductors to prevent such potential hazards. Therefore, identifying this scenario as an improper installation that should be corrected is crucial for ensuring the safety and compliance of electrical systems in the home. This includes recommending that the cable be exposed or properly protected in compliance with applicable electrical codes. Ensuring that electrical components are adequately accessible not only promotes safety but also allows for proper future maintenance and inspections.