Residential Building Inspector B1 The B1 credential focuses narrowly on single-family and small multi-unit properties, whereas the B2 encompasses larger commercial structures and complex systems. If you’re inspecting homes and duplexes, B1 gives you targeted depth in foundation assessment, roofing standards, and residential electrical codes without the industrial HVAC complexity B2 demands.
| Exam Name | Residential Building Inspector B1 |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |
