Final answer:
A home inspector is required to report on the condition and type of roofing material, but the cost of replacing the roof is not required as it is beyond the scope of their duties.
Step-by-step explanation:
A home inspector is typically required to report on the condition and components of a home to provide a potential buyer with an understanding of the property's state. In context to roofing, an inspector is expected to identify the type and condition of the roofing material, as well as the number of layers of roof covering if observable. However, a home inspector is not usually required to report on the cost of replacing the roof covering. This kind of information is usually beyond the scope of a home inspection, as it requires specialized knowledge of local market prices, the availability of materials, and labor costs.