Risk Category I through IV

Risk Category I is for buildings that pose minimal risk to human life if they fail. These are typically isolated structures where people rarely spend much time.

Think of a barn in the middle of a farm. If a hurricane destroys it, property is lost but people are unlikely to be hurt. That is why these buildings can use lower wind speeds.

This category is relatively rare in Miami-Dade because most buildings have some occupancy that elevates them to Category II or higher.

Risk Category II is the default for most buildings. If your building does not fit into Categories I, III, or IV, it belongs here.

This is where about 90 percent of buildings fall - houses, apartment buildings, office buildings, retail stores, restaurants, and hotels. These are places where people live, work, and shop.

In Miami-Dade, Category II uses approximately 180 mph basic wind speed - a very serious design requirement due to the hurricane exposure.

Risk Category III is for buildings where large numbers of people gather or where failure would create significant hazard. The stakes are higher.

A school with hundreds of children needs extra protection. A church or theater packed with people during a storm must not fail. Buildings with hazardous materials must stay intact.

The key triggers are: more than 300 people in one area, school capacity over 250, healthcare facilities (without surgery), jails, and buildings with toxic substances.

Risk Category IV is reserved for buildings that absolutely must remain operational during and after disasters. These are the backbone of emergency response.

When a hurricane devastates Miami-Dade, people rush to hospitals, firefighters race to emergencies, and 911 operators coordinate rescue efforts. These facilities cannot fail.

At 195 mph design wind speed, Category IV buildings in Miami-Dade are built to withstand the most extreme conditions imaginable. This is not just insurance - it is survival infrastructure.