Which peril is typically excluded from commercial property insurance coverage?

Flood or sewage backup is typically excluded from commercial property insurance coverage due to the increased risk and frequency of these events in certain areas, which insurers find difficult to underwrite. Because floods can cause extensive damage that may exceed normal property loss limits, insurers often exclude them to limit their financial exposure. As a result, businesses located in flood-prone areas often need to obtain separate flood insurance policies through the National Flood Insurance Program (NFIP) or similar programs to ensure they have coverage against such events.

The other perils listed in the options are generally covered under commercial property insurance, which includes protections against risks like theft, accidental fires, and vandalism as part of standard policy offerings. This makes flood or sewage backup a distinct exclusion that policyholders need to be acutely aware of when assessing their insurance needs.