Business interruption coverage
If your business suffers a property loss it could cause the business to slow or close down while repairs are made. This may mean a complete or partial revenue loss depending on the timeframe and the damage. From the time the loss occurs until your business is running again, insurance can replace your lost profits, and provide a source of money to pay your necessary continuing expenses, like rent, payroll, taxes, etc.
You can also buy insurance to cover any extra expenses incurred in getting your business back into operation. It may take a while once you re-open for customers to discover you are back in business, which may hurt your bottom line. To meet this need, insurance companies offer coverage for the difference between your "before loss" business income and your "after loss" business income for a month or more while you regain your customers.