Ask three roofers on the Gulf Coast what FORTIFIED means and you’ll get three answers, and at least one of them will be trying to sell you a shingle. It isn’t a shingle. It isn’t a brand, and it isn’t something a contractor can decide your roof qualifies for. It’s a construction standard set by the Insurance Institute for Business and Home Safety (IBHS), and an independent evaluator has to sign off before you get anything for it.
Here’s what the standard actually asks for, what the certificate is worth in Alabama, and who pays for it.
Key Takeaways
- A FORTIFIED roof is built past code in four specific places and verified by a Certified FORTIFIED Evaluator who doesn’t work for your roofer.
- Alabama Code section 27-31D-2 requires insurers writing wind coverage to discount a certified FORTIFIED home. The amount comes from each carrier’s filed rates.
- The Strengthen Alabama Homes grant pays 100% of the cost of the mitigation work up to $10,000, with no income limit, in Mobile, Baldwin, Jefferson, Tuscaloosa and Escambia counties. Above $10,000 the homeowner pays the difference.
- The cheapest time to build one is while the deck is already open for a replacement.
The FORTIFIED roof standard
IBHS studies how buildings come apart in storms. What the standard reflects is that a roof on this coast usually doesn’t fail because the shingles weren’t good enough. Wind gets under something at the perimeter, peels the covering back, and then rain goes into a deck that was never meant to be out in the weather.
So the standard spends its attention on the parts that go first, not the part you can see from the street.
Sealed deck, ring-shank nails, locked edges
The deck gets sealed. The seams are taped or covered so that if the shingles come off in a hurricane, water still doesn’t get into the house. This one does the most work. Most of what makes a storm expensive is the water that arrives after the covering is gone.
The deck gets nailed down harder. Ring-shank nails, in a tighter pattern than code asks for. The rings bite into the framing and hold when wind tries to pull the deck straight up off the house.
The edges get locked down. Reinforced drip edge and proper starter strips around the perimeter, because the edge is where wind gets its first grip on a roof.
The vents and flashing get upgraded. High-wind vents that don’t let water in under pressure, and proper flashing at walls, valleys, chimneys and every pipe coming through.
None of that is exotic. What makes it a system is that all four get done and somebody outside the job checks.
FORTIFIED certification and the evaluator
This is where a FORTIFIED roof separates from a roofer telling you he built it strong.
Most of what matters gets covered up by the next stage, so the contractor photographs each required step as the roof goes on. When it’s finished, a Certified FORTIFIED Evaluator reviews the documentation and checks the work against the standard. The evaluator is independent of the contractor and has to be. That’s the whole reason insurers treat the certificate as meaning something.
If the stage photos don’t get taken properly, the evidence is under the shingles and nobody can verify what they can’t see. We’re a certified FORTIFIED contractor and we document as we go, because there’s no going back for it afterward.
Alabama’s insurance discount law
Most companies will tell you that many carriers offer a discount for a FORTIFIED roof. That’s true and it’s weaker than the actual position in Alabama.
Alabama Code section 27-31D-2 requires insurers writing wind coverage in this state to provide a premium discount or a rate reduction for a home retrofitted to the FORTIFIED standard. It’s been in force since May 2009. Your carrier doesn’t get to decide whether to offer it.
What the law doesn’t do is set the amount. That comes out of each insurer’s own rating plan, which has to be filed with the state and actuarially justified, and it applies to the wind portion of your premium rather than the whole policy. So any roofer who quotes you a percentage is guessing. Your agent can tell you the real number for your policy.
There’s a second section worth reading if a storm has already taken your roof. Alabama Code section 27-31D-2.1 requires insurers to offer an endorsement that upgrades a non-FORTIFIED home to the FORTIFIED standard when damage means the roof has to be replaced. A forced replacement is the cheapest opportunity anybody gets to upgrade a roof, since the deck is coming off either way.
Strengthen Alabama Homes grants
The state also pays toward it. Strengthen Alabama Homes covers 100% of the cost of the mitigation work up to $10,000 to re-roof a house to the FORTIFIED standard, and there’s no income limit on the program. If the re-roof costs more than $10,000, you pay the difference.
The house has to be an owner-occupied single-family primary residence in a participating county. No condos, townhomes, mobile homes or rentals. It has to be in good repair and not listed for sale, you need a homeowners policy in force when you apply and wind coverage when the work is done, and flood insurance if you’re in a special flood hazard area. You pick your evaluator and your contractor from the program’s approved lists.
Mobile and Baldwin counties have been in it since 2015. Jefferson, Tuscaloosa and Escambia counties were added in 2025, which brought the Birmingham area in for the first time.
Applications open on a published schedule county by county and the money goes first-come, so a round can close the same morning it opens. All Phase Roofing and Construction is an approved Strengthen Alabama Homes contractor, so we can do the work the grant pays for. We’ll also inspect and quote your roof before you apply, so you’re not looking for a contractor after you’ve been accepted.
The cheapest time to do it
If your roof is getting replaced anyway, build it to the standard then. The sealed deck and the heavier fastening both happen while the deck is already open. Do it later and you’re paying somebody to take a good roof back off to reach the same layer.
Call (251) 725-0036 or book a free roof inspection, and we’ll tell you what your house would actually need.
Frequently Asked Questions
What is a FORTIFIED roof?
A roofing system built to the standard set by the Insurance Institute for Business and Home Safety, with a sealed roof deck, ring-shank deck attachment, reinforced edges and high-wind vents and flashing. Every required stage is photographed during construction and verified by an independent Certified FORTIFIED Evaluator before IBHS issues the certificate.
Does a FORTIFIED roof lower insurance in Alabama?
Yes. Alabama Code section 27-31D-2 requires insurers writing wind coverage in Alabama to give a premium discount or rate reduction for a certified FORTIFIED home. The amount is set by each carrier’s filed rates and applies to the wind portion of the premium, so ask your agent for your number.
How much does the Strengthen Alabama Homes grant pay?
Up to $10,000, covering 100% of the cost of the mitigation work. If the re-roof costs more, you pay the difference. There’s no income limit. The home has to be an owner-occupied single-family primary residence in a participating county, and the work has to be verified by a Certified FORTIFIED Evaluator.
Can any roofer install a FORTIFIED roof?
No. The contractor has to build to the IBHS standard and document each stage, and grant-funded work has to come from a contractor on the Strengthen Alabama Homes approved list. All Phase Roofing and Construction is a certified FORTIFIED contractor and an approved Strengthen Alabama Homes contractor.
Is a FORTIFIED roof worth it if I’m not using the grant?
That depends on what your carrier’s discount comes to and how long you plan to keep the house. The discount is required by law, so it’s worth getting the number from your agent before you decide. The stronger argument is usually the roof itself. A sealed deck means the worst case in a hurricane is missing shingles instead of water coming through the ceiling.
Reviewed by Jacob Weaver, Operations Manager, roofing industry experience since 1988.