InterNACHI Roof Inspector study guide
InterNACHI Roof Inspector · Work through your exam, one topic at a time.
The InterNACHI Roof Inspector credential is a specialty certification offered within the InterNACHI® (International Association of Certified Home Inspectors) training and certification ecosystem. It is aimed at working home inspectors, roof-focused contractors, and candidates building a roofing-specific skill set who want a structured, exam-based demonstration of roofing knowledge beyond the general home inspection curriculum. The exam is delivered in multiple-choice format across four equally weighted domains: roofing materials and components; roof inspection safety and access; roof defects and performance issues; and roof reporting and standards of practice. Expect questions that test practical judgment - how a covering, flashing detail, or ventilation arrangement performs, how to walk or avoid a roof safely, how to distinguish a defect from normal wear, and how to describe findings in report language consistent with inspection standards of practice. The InterNACHI Roof Inspector study guide has 4 sections and about 1,272 words.
01Roofing Materials and Components
Domain 1 tests how well you can identify roof coverings, name their components, and explain why slope, underlayment, and flashing must work as a system. Exam items often pair a material with a minimum slope or show a roof section with a missing component.
316 words, about 2 min02Roof Inspection Safety and Access
Domain 2 tests fall protection, ladder setup, roof walkability, and electrical hazards. The key point is that the Standards of Practice do not require you to walk every roof; they require a safe inspection and an honest description of what you could and could not observe.
343 words, about 2 min03Roof Defects and Performance Issues
Domain 3 tests failure modes: hail, wind, flashing, moisture, ventilation, and installation defects. The exam wants you to distinguish damage from normal wear and to connect a symptom to its likely cause.
305 words, about 2 min04Roof Reporting and Standards of Practice
Domain 4 tests the Standards of Practice, report language, limitations, and exclusions. The exam checks whether you can describe what you inspected, what you did not inspect, and what the client should do next, without overstepping into code compliance or engineering.
308 words, about 2 min