Final answer:
Home inspectors are not required to report unusual vibrations in power vents as it's not typically considered a defect unless indicating a failure, and it may fall outside a standard home inspection checklist.
Step-by-step explanation:
In the context of home inspections, the inspector is generally expected to examine a variety of systems and components of a house to ensure they are in proper working order. However, the inspector is not required to report as in need of repair unusual vibration levels of power vents.
Typically, home inspection standards of practice do not require the inspector to identify cosmetic flaws or to report on components that are not readily accessible or are outside the scope of the home inspection. Unusual vibration in power vents might not be seen as a defect unless it clearly indicates a failure or a safety issue, and such concerns might fall outside the standard checklist of home inspection requirements.