How FORTIFIED™ Homes Held Up During Hurricane Sally

by Derek | Oct 22, 2025 | FORTIFIED™

When Hurricane Sally 2020 swept across the Gulf Coast, it tested the strength of thousands of homes and businesses in coastal Alabama and Florida. At 5 a.m. on Wednesday, September 16, 2020, the storm made landfall in Gulf Shores, Alabama, as a strong Category 2 hurricane with maximum sustained winds of 105 mph (105 knots).

Hurricane Sally 2020: The Storm That Changed Everything
What Makes a FORTIFIED™ Home Different
The Numbers Don’t Lie–The Evidence: FORTIFIED™ Homes vs. Conventional Construction
Real-World Impact: What the Savings Mean
Lessons for Homeowners: What Hurricane Sally Teaches Us
Conclusion: Looking Ahead and Building Back Better

Unlike fast-moving hurricanes that strike and move inland, Sally crept ashore at less than five miles per hour. That slow movement meant coastal Alabama endured hours of hurricane-force winds, torrential rainfall, and storm surge flooding. Inland areas of southwest and south-central Alabama also experienced severe wind and flood damage as the system stalled.

Despite the widespread destruction, one group of homes performed remarkably well. Of the 17,000+ FORTIFIED™ homes and 19 FORTIFIED™ Commercial™ buildings along Alabama’s coast, more than 95% sustained little to no damage. This event marked the first time a major hurricane struck such a large number of FORTIFIED™ structures, offering a rare, real-world test of the program’s effectiveness.

Hurricane Sally 2020: The Storm That Changed Everything

Hurricane Sally 2020 caused extensive property loss across Mobile and Baldwin counties and into the western Florida Panhandle. Streets in coastal towns flooded for days, while prolonged winds ripped shingles and siding from traditional homes. The National Oceanic and Atmospheric Administration (NOAA) later estimated that Sally caused over $7.3 billion in total damage.

The storm, however, also provided an unprecedented scientific opportunity. Because Alabama had more FORTIFIED™ homes than anywhere else in the country, researchers could compare their performance to traditional and code-built houses under identical conditions. The damage caused by Hurricane Sally was minimized, leading to faster recovery times and economic stability for the affected region.

The University of Alabama’s Center for Risk and Insurance Research (CRIR), commissioned by the Alabama Department of Insurance, led a peer-reviewed study analyzing over 40,000 insured properties ($17 billion in total insured value) exposed to Hurricane Sally. The goal was simple: determine whether FORTIFIED™ construction truly delivers measurable protection. The answer was a resounding yes! According to Alabama Insurance Commissioner Mark Fowler, the FORTIFIED™ system exceeded every expectation and proved that mitigation works not just in a controlled lab setting but for real-world disasters in Alabama and along the Gulf Coast.

What Makes a FORTIFIED™ Home Different

The FORTIFIED™ program, developed by the Insurance Institute for Business & Home Safety (IBHS), is a voluntary construction and re-roofing standard that strengthens homes against high winds and wind-driven rain. Rather than reinventing building codes, FORTIFIED™ builds on them—adding practical upgrades that make homes more durable and more insurable in high winds and driving rain.

FORTIFIED Roof: Focuses on keeping the roof on and the rain out. Builders seal the roof deck, lock down edges, and use impact-resistant shingles.
FORTIFIED Silver: Adds chimney bracing and impact- and pressure-rated garage doors and impact protection for windows and doors for greater protection.
FORTIFIED Gold: Goes further by tying the entire structural system together—from the roof to the foundation—creating a unified load path that resists uplift and lateral forces.

To earn a designation, every FORTIFIED™ home is inspected by an objective third-party evaluator like Fortified Inspections to verify each structural detail meets the program’s technical requirements. That independent oversight, researchers found, makes a measurable difference in real-world performance.

Alabama has embraced this model like no other state with over 53,000 upgraded homes, the most in the nation. Through the Strengthen Alabama Homes grant program, homeowners can receive up to $10,000 to retrofit (or upgrade) their roofs to FORTIFIED™ standards. The state has also adopted the Coastal Construction Code Supplement, which complements FORTIFIED™ standards and now applies to over 70% of Alabama’s coastal region. For more information, visit FORTIFIED Home.

The Numbers Don’t Lie–The Evidence: FORTIFIED™ Homes vs. Conventional Construction

The facts are in, and the numbers don’t lie! FORTIFIED™ homes held up remarkably better to the wind and rain caused by Hurricane Sally, resulting in less damage and shorter recovery times. The damage caused by Hurricane Sally is now comparable for homes in the affected region. The UA study provided the first large-scale, empirical evidence that IBHS FORTIFIED Home™ construction significantly reduces storm losses. Researchers analyzed insured properties south of Interstate 10, encompassing:

25,093 conventional homes
7,685 homes built to enhanced or supplemental codes
7,417 FORTIFIED™ homes (including 1,705 Roof and 5,712 Gold designations)

Claim Frequency Reduction

Less insurance claims filed indicates the FORTIFIED™ damage from Hurricane Sally was less than regular construction, resulting in fewer deductibles paid out and less homeowner displacements.

FORTIFIED Roof: 73% fewer insurance claims than comparable conventional homes
FORTIFIED Gold: 76% fewer claims
Conventional homes showed a 26% claim rate, while FORTIFIED™ Gold homes reported just 8%

Claim Severity Reduction

Less claim severity means substantial financial savings to homeowners and insurance companies and less severe damage than to conventional construction.

FORTIFIED Roof: 15% lower claim severity
FORTIFIED Gold: 24% lower severity
Average claim amount: $21,058 for traditional homes vs. $16,054 for FORTIFIED Gold

Loss Ratios Reduction

With less loss ratio, everyone wins! Insurance companies pay out less to homeowners and homeowners incur less damage. The ability for insurance companies to maintain premiums (and not increase them) benefits the homeowners, allowing them to afford to maintain their insurance for peace of mind and potential future damage to their homes.

FORTIFIED™ Roof: 72% lower loss ratio
FORTIFIED™ Gold: 67% lower loss ratio
Overall, loss ratios dropped 51–72%, even after accounting for insurance discounts.

The Tree Factor

The difference in performance across wind speeds between FORTIFIED™ Roof and Gold is largely due to falling trees. Approximately 46% of all claims were tree-related, not related to FORTIFIED™ construction. When excluding tree-related damage—the one area outside FORTIFIED’s design scope—the results were even stronger. Using a nearest-neighbor methodology, the study confirmed that FORTIFIED™ homes consistently outperformed others in similar locations and exposure conditions.

Real-World Impact: What the Savings Mean

The UA study proves that everyone gets ahead financially with FORTIFIED™ standards. The numbers translate into substantial financial savings for both homeowners and insurers with regard to Hurricane Sally damage in Alabama.

If every home in Sally’s path had been retrofitted to FORTIFIED™ Roof, insurers would have saved potentially $111.8 million.
If all had been built to FORTIFIED™ Gold, potential savings rose to $116.1 million.
Homeowners, meanwhile, could have saved up to 65% on losses below their deductibles with potentially $34.6 million in potential savings.

The study also showed that while homes built to codes identical to FORTIFIED™ performed better than standard ones, they still did not match the results of fully-certified FORTIFIED™ homes. The difference came down to verification—third-party evaluators ensure every fastening, seal, and edge meets the rigorous design.

Such oversight, the researchers concluded, is the “critical factor” that ensures resilience translates from blueprint to real-world performance. The program, designed to mitigate wind and rain damage to homes during severe storms like hurricanes and tropical storms, is a proven way for homeowners to save money, reduce property damage, and increase their peace of mind when a storm approaches their region.

Lessons for Homeowners: What Hurricane Sally Teaches Us

There are many lessons to be learned from Hurricane Sally and its data. For coastal communities in hurricane-prone areas (and tornado-prone), FORTIFIED™ construction matters. While percentages and ratios tell one story, the human side of resilience tells another.

Communities with FORTIFIED™ homes recover faster. These homes, built with strict standards and certified third-party evaluations, stand up better than those constructed with local building codes. Fewer roof failures mean less water intrusion, less mold, and shorter displacement times for families. Neighborhoods with stronger housing also experience smaller disruptions to schools, businesses, and local tax revenue.

Homeowners and communities benefit from lower repair costs and deductibles paid out in addition to shorter recovery times. Today, more than 51,000 homes in Alabama carry official FORTIFIED™ status, the highest concentration in the country. The success of this approach demonstrates how policy support and consumer awareness can work together to build a more resilient coastline.

Key Takeaways

Stronger standards work. Homes built or retrofitted to FORTIFIED™ standards dramatically outperform conventional construction.
Verification matters. Only homes inspected by certified evaluators receive the full benefit of the program.
Maintenance is part of resilience. Tree trimming, drainage improvements, and regular roof inspections complement wind-resistant construction.
Financial help is available. Alabama homeowners can apply for grants through the Strengthen Alabama Homes program and may qualify for insurance premium discounts.
Codes and supplements multiply benefits. Adoption of the Coastal Construction Code Supplement ensures community-wide protection when combined with individual participation.

Conclusion: Looking Ahead and Building Back Better

The findings from the UA study based upon Hurricane Sally in 2020 do more than validate FORTIFIED™—the evidence points to a sustainable path forward. If resilience can prevent billions in losses while protecting lives and livelihoods, it deserves to be standard practice.

Alabama’s example shows that when homeowners, insurers, and state agencies collaborate, entire regions can become stronger against hurricanes and other natural hazards. As the study concludes, widespread adoption of FORTIFIED™ standards, supported by grants and verification, can reduce losses by up to 75% for insurers and 65% for homeowners—savings that ripple through the entire economy.

As storms threaten coastal regions each year, homeowners everywhere can take a lesson from Alabama—investing in resilience is not just preparation; it’s protection. For residents along the Gulf Coast and beyond, the message is simple: resilience pays off. Now is the time to act. Explore certified contractors, apply for grants, and talk to your insurer about FORTIFIED™ discounts. Reach out today to Fortified Inspections for an evaluation backed by years of experience along the Gulf Coast: Fortified Inspections.