Lessons from Past Hurricanes: Real World Advice

Every hurricane season serves as a stark reminder of how vulnerable commercial properties can be — especially their roofing systems. From Hurricane Katrina to Hurricanes Ian and Helene, businesses have experienced massive losses due to preventable roof damage. But within the destruction, there are valuable lessons that can help property owners and facility managers better prepare for the next storm.

Below is real-world advice rooted in lessons learned from past hurricanes, aimed at strengthening your commercial roof before the next major weather event hits.

1. Regular Inspections are Non-Negotiable: One of the clearest takeaways from hurricane damage assessments is that many failures start long before the storm arrives. Leaks, loose flashing, compromised seams, and clogged drainage systems go unnoticed until wind and water exploit them during a storm.Lesson: Schedule routine inspections—at least twice a year and after any major storm. Catching minor issues early can prevent catastrophic failure later.
2. Wind Uplift Ratings Matter: Commercial roofs are often expansive and flat, making them especially susceptible to wind uplift. During Hurricane Michael, buildings with low-rated or improperly installed roofing systems saw massive sections of membrane peeled away like paper.Lesson: Make sure your roofing system meets or exceeds local wind uplift requirements. This includes ensuring that your roofing fasteners, adhesives, and edge metal details are installed per manufacturer specs and tested to meet ANSI/SPRI ES-1 standards.
3. Secure Loose Items and Equipment: HVAC units, satellite dishes, and even small tools left on the roof can become dangerous projectiles in high winds – causing punctures that lead to massive water intrusion.Lesson: Create a rooftop management plan that includes securing or removing all loose items before a storm. Anchor rooftop equipment properly and inspect support curbs and mounting systems.
4. Invest in Impact-Resistant Materials: Hail and flying debris are common in hurricanes and tropical storms. Traditional roofing membranes, especially aged ones, can’t always withstand the abuse. Buildings with impact-resistant membranes or reinforced coatings often suffer significantly less damage.Lesson: Consider upgrading to materials that are approved for severe hail and wind zones. Reinforced single-ply membranes, spray polyurethane foam (SPF) with elastomeric coatings, and built-up roofing with gravel surfacing all offer increased durability.
5. Maintain Drainage Systems: Flooded roofs are heavy roofs. In many hurricane scenarios, drains clogged with debris or vegetation cause roofs to flood water, which may eventually collapse sections under the weight.Lesson: Ensure that all drains, scuppers, and gutters are clear and properly sloped. Install protective drain covers and test systems regularly to confirm water flows freely.
6. Document and Plan Ahead: After Hurricane Irma, many business owners struggled with insurance claims due to a lack of “before” documentation. Others didn’t have emergency roofing contacts lined up, delaying response times.Lesson: Keep detailed, dated records of roof inspections, repairs, and warranties. Take clear photos of the roof under normal conditions and store them securely. Establish a relationship with a trusted commercial roofer who can prioritize your building in the event of a storm emergency.
7. Don’t Underestimate Temporary Protection: In the immediate aftermath of Hurricane Ian, the buildings that avoided the most internal damage were those that had emergency tarping or temporary repairs done within 24–48 hours.Lesson: Have an emergency response plan in place. Know who to call and what steps to take if your roof is compromised. Fast action can save tens of thousands in interior damage.

   Protecting your commercial roof from hurricanes isn’t just about surviving one storm—it’s about long-term resilience. By learning from past events and taking proactive steps, you can significantly reduce your risk of damage and ensure faster recovery. Storms will come, but preparation determines the outcome.

   Unicoat Industrial Roofing is a national leader in quality roof coatings for commercial properties.