Yes, we live in a desert, but for those of us that have experienced the sudden and heavy rainfalls here in Nevada it is a real jolt of reality to see the devastation that occurs. Floods are the most common natural disaster in the U.S.- 90% of all disasters in the U.S. are flood related.  A BOP or a Commercial Building and Personal Property Form does NOT cover Flood losses. Coverage can be purchased for both the building and the contents. There is a mandatory 30 day waiting period before a flood policy becomes effective, so you need to ask about applying for a policy before the rainstorm arrives.