Generally, if you live in an area that is susceptible to high-wind storms and your home insurance policy does not automatically cover the damages they could cause, you will want to add this protection. Remember that if a flood occurs as a result of the storm, the windstorm coverage will generally not cover the damages. Instead, you’d need to look to your flood insurance policy.
Windstorm coverage added as a rider to your home insurance policy will generally have a separate deductible from the rest of the hazards covered by the policy (for areas prone to hurricanes, this may be referred to as a hurricane deducible). This amount is generally represented as a percentage of the policy’s overall limit. In order to determine which deductible applies to an individual event, your insurer might rely on the National Weather Service’s classification of the recent storm that caused the damage to your property.