Flood Insurance Is A Separate Policy

Standard homeowner policies exclude flood. Coverage for it comes from a separate policy with its own definitions, timing rules and limits, which is why losses are so often uncovered.

What counts as a flood

Flood policies generally define the peril narrowly: a temporary condition of partial or complete inundation of normally dry land, usually affecting two or more properties or a substantial area.

Water entering from a burst pipe or a roof leak is not a flood and belongs to the homeowner policy. Water rising from outside the building is.

Groundwater seepage and sewer backup sit in a further category again, sometimes covered by endorsement and sometimes not covered anywhere.

Where the coverage comes from

Much residential flood coverage is written through a federal program administered with participating insurers, with the private flood market providing an alternative in many areas.

Program policies carry defined coverage limits for building and contents. A property valued above those limits may need excess coverage from a private carrier.

Participation depends on the community adopting floodplain management requirements, which is why availability is tied to local government as well as to the individual property.

The waiting period

New policies typically take effect only after a waiting period rather than immediately. That prevents purchase in response to an approaching storm.

Exceptions exist, including policies purchased in connection with a loan closing. Those rules are specific and are the reason lenders raise the subject early.

Owners who wait until a forecast to consider coverage generally find the decision already made for them.

Maps, zones and requirements

Flood mapping assigns areas to zones reflecting assessed risk. Lenders require coverage for federally related loans on properties in high-risk zones.

Maps are revised, and a property can move between zones without changing physically. Owners are sometimes notified of new requirements years after purchase.

Risk does not stop at the mapped line. A substantial share of flood claims arise outside high-risk zones, where coverage is optional rather than required.

What the policy pays

Building and contents coverage are usually purchased separately, and contents coverage is not automatic. Below-grade areas are subject to significant limitations under program policies.

Settlement basis varies between replacement cost and actual cash value depending on the policy and the property, which affects the amount paid after a loss.

Program rules, rating methods, mapping and private market availability all change over time. A licensed insurance agent and the community's floodplain administrator are the right sources for a specific address.