What are the requirements for a FORTIFIED roof in Alabama?

The Alabama requirements are the FORTIFIED requirements — it is a national standard from IBHS (Insurance Institute for Business & Home Safety), not a state-written code, and Alabama's role is to mandate an insurance credit for homes that meet it. At the FORTIFIED Roof level the stack is: a sealed roof deck acting as a secondary water barrier, ring-shank deck attachment on an upgraded schedule, enhanced drip edge and edge metal fastened tighter around the perimeter, a wind-rated covering installed to high-wind instructions with the ridge, hip, and penetration detailing that goes with it, and rated attic vents and openings. All of it has to be documented as the work happens and reviewed by an independent third-party evaluator. The published requirements live in the public FORTIFIED program documentation at fortifiedhome.org (read 2026-08-18).

What is the difference between FORTIFIED Roof, Silver, and Gold?

They nest. FORTIFIED Roof covers the roof itself and is the level a re-roof can reach on an existing house. Silver is everything in Roof plus the openings and attached structures — gable ends, soffits, chimneys, attached porches and carports — the places a storm gets inside and pressurizes the house. Gold is everything in Silver plus a continuous load path tying the roof through the walls into the foundation. Almost every existing Gulf Coast home starts, and usually stops, at FORTIFIED Roof, because Silver and Gold reach well past the roofline.

Are ring-shank nails actually required?

Ring-shank fasteners are what the deck-attachment requirement is built around, because the rings up the shank resist withdrawal in a way smooth-shank nails do not — and withdrawal is exactly what uplift does to a deck. The specific schedule (pattern and spacing) varies by designation level, deck material, and the wind zone the house sits in, so read it in the published standard rather than taking a spacing figure off any roofing website, including this one.

Can an existing roof be brought up to the FORTIFIED standard?

Usually yes, but almost always at replacement, not as a patch. The sealed deck and the upgraded attachment both require the covering to be off, so there is no meaningful way to reach the standard on a roof that stays on. That is the practical rule: a FORTIFIED retrofit is a re-roof. What varies is what the tear-off reveals — decking that is delaminated, too thin, or spaced too widely to hold the required fastening has to be addressed before the standard is reachable at all.

Who inspects and certifies a FORTIFIED roof?

An independent, credentialed FORTIFIED Evaluator — a separate credential from a roofer's, held by someone with no financial stake in the roof job. You hire the evaluator directly and the fee is yours. Liberty builds to the standard and hands the evaluator the documentation the standard calls for; we do not evaluate our own work, and a contractor who offers to both build and certify your roof is describing something the program does not permit.

Is a FORTIFIED roof worth it?

The case is stronger in coastal Alabama than almost anywhere else, for two reasons that are not sales claims. First, the state mandates a wind-premium credit for designated homes, so the insurance benefit is written in law rather than negotiated with a carrier. Second, the sealed deck changes what happens to your house in the storm you actually get: a covering can leave and the interior can still stay dry. Whether the arithmetic works on your specific house depends on your premium and your roof's condition, and that is a conversation with your insurance agent and a roofer who has been on your roof.

How long does a FORTIFIED designation last?

A roof designation runs for five years, after which the home has to be re-evaluated to stay current. The designation attaches to the property rather than the owner, so it transfers when you sell — keep the certificate with the house documents and note the expiration somewhere you will actually see it.

FORTIFIED Roofing · Requirements

What the FORTIFIED standard actually requires

“Built to FORTIFIED standards” is a sentence anybody can type. The standard behind it is public, specific, and checkable by a third party who does not work for your roofer — which makes it one of the few claims in this industry you can independently hold somebody to. Here is the requirement stack in plain language, what changes between the three levels, who signs off, and what an existing Gulf Coast roof can and cannot reach.

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Everything on this page is a plain-language summary of the public FORTIFIED program documentation at fortifiedhome.org, read on 2026-08-18. FORTIFIED is a standard from IBHS (Insurance Institute for Business & Home Safety), and IBHS revises it periodically. Where a specific dimension or schedule matters to your decision, read it at the source rather than on a roofing website — including this one.

The standard at IBHS

Where Alabama fits

Alabama did not write the requirements. It wrote the incentive.

People search for “Alabama FORTIFIED roof requirements” expecting a state rulebook, and there isn't one. FORTIFIED is a national beyond-code standard published by IBHS (Insurance Institute for Business & Home Safety). The requirements are identical whether the house is in Fairhope or on the Carolina coast; what varies is the wind zone the house sits in, which the standard itself accounts for.

What Alabama did is attach money to it — a mandated wind-premium credit for designated homes, and a state grant program that pays toward the work. That is why the standard is far more common here than in most of the country, and why nearly every roofer on this coast has learned to say the word.

The requirement stack

Five requirements at the FORTIFIED Roof level

This is the level an existing house reaches during a re-roof, and it is what somebody means when they say “FORTIFIED roof.” Each one below carries the question to put to a bidder — that is what turns a marketing word into a specification.

A sealed roof deck

The decking itself becomes a secondary water barrier. Deck seams are sealed and the surface is covered so that if the shingles or panels leave in a storm, water still does not get into the house. This is the requirement with the biggest real-world consequence and it is invisible the day the job is finished.

Hold them to it: Ask a bidder which compliant sealed-deck method they are using on your roof and why. There is more than one path, and a roofer who cannot name theirs has not priced the standard.

Ring-shank deck attachment

The standard is built around ring-shank nails — fasteners with annular rings up the shank that resist withdrawal far better than the smooth-shank nails used on a lot of older decks. The requirement covers both the fastener type and an upgraded attachment schedule across the whole deck, which on an older house usually means re-fastening decking a normal re-roof would leave alone.

Hold them to it: The exact pattern varies by level, deck material, and wind zone. Read it in the published standard rather than accepting a number from a salesperson.

An enhanced edge

Drip edge and edge metal step up in gauge and get fastened on a tighter schedule around every eave and rake. Wind gets under a roof at the perimeter first — a roof that loses its edge loses everything downwind of it — which is why the standard treats the edge as a structural detail rather than a trim detail.

Hold them to it: Edge metal is the cheapest place to quietly under-build a FORTIFIED job. Ask what gauge is going on and how it is being fastened.

A wind-rated covering, correctly detailed

The covering itself has to be rated for the wind zone the house sits in, and it has to be installed to the manufacturer's high-wind instructions rather than the standard ones. Ridges, hips, starter courses, and every penetration have their own detailing requirements.

Hold them to it: High-wind installation instructions are published by the covering manufacturer. Ask which instructions the crew is following on your roof.

Attic vents and openings that hold up

Vents are holes in a pressurized box. The standard requires attic ventilation and other roof openings to be rated and detailed so wind-driven rain does not simply enter through them, and existing vents frequently cannot be brought to spec and get replaced.

Hold them to it: Count the vents on your roof before you compare bids — a dozen replacements is a real line item and an easy one to leave out.

Roof · Silver · Gold

Three levels, and each one contains the one before it

The levels are cumulative, not alternative. You do not choose between them the way you choose a shingle color — you choose how far past the roofline the project goes.

FORTIFIED Roof

The roof, by itself

The entry level and the one nearly every existing Gulf Coast home starts at, because it is the level a re-roof can reach without touching the rest of the house. Everything in the stack above belongs to this level. If somebody is talking to you about a FORTIFIED re-roof, this is almost certainly what they mean.

Reachable during a normal roof replacement.

FORTIFIED Silver

The roof, plus the openings and attached structures

Everything in FORTIFIED Roof, and then the parts of the house that let a storm pressurize the inside: gable ends, soffits, chimneys, and attached porches, carports, and canopies. Silver is where a house stops being treated as a lid on a building and starts being treated as a sealed box.

Usually needs work beyond the roofline — often paired with other projects.

FORTIFIED Gold

The whole load path, roof to foundation

Everything in Silver, plus a continuous load path — the engineered chain of connections that ties the roof through the walls and down to the foundation so uplift is carried into the ground instead of into a failure. Gold is the strongest designation and the largest project of the three.

Typically a new build or a substantial renovation, and generally requires design input.

Retrofit reality

What an existing Gulf Coast roof can actually reach

This is the question that decides whether the standard is on the table for you at all, and the answer is simpler than most people expect.

Reachable during a re-roof

The full FORTIFIED Roof stack — sealed deck, ring-shank attachment, enhanced edge, rated covering and detailing, rated vents. All of it is deck-level work and all of it is reachable the day the old covering comes off.
Decking repairs and re-sheathing, which is frequently what the standard actually requires on a house built before the current wind provisions.
The documentation itself — the one thing that is genuinely impossible to add afterward, which is why the decision has to be made before the job starts, not after.

Not reachable without opening the roof

Anything under the covering. A sealed deck and an upgraded fastening schedule both require the shingles to be off — there is no overlay, no coating, and no partial version of either.
A designation on a roof that is still on. If a roofer tells you they can get your existing roof designated without a tear-off, ask them to put the sealed deck requirement in writing and watch what happens.
Silver and Gold, generally. Both reach past the roofline into openings, attached structures, and the load path, which is a different project with different trades involved.

If your roof still has years left and you are trying to work out what is worth doing in the meantime, we wrote that up separately — hardening an older coastal roof covers the moves that genuinely help before replacement day. And if you are not sure what shape your deck is in, that is exactly what a roof inspection is for.

Certification mechanics

How a roof becomes a designated roof

The requirements are only half of it. The other half is the paperwork — and unlike most roofing paperwork, this set has an independent party checking it.

01
Documentation is captured while the roof is open
The evidence the standard requires — photographs of the deck, the fasteners, the sealing, the edge metal, plus product data for what went on — has to be captured in sequence as the work happens. There is no way to reconstruct it once the covering is down, which is why a FORTIFIED job runs on a checklist and not on memory.
02
An independent evaluator reviews it
A credentialed, third-party FORTIFIED Evaluator — hired by you, not by your roofer — reviews the documentation against the standard and submits it. If something is missing or does not meet the requirement, it comes back. That friction is the entire value of the designation.
03
IBHS issues a designation certificate for the address
The certificate names the property and the designation level. It is the document with money attached to it: it is what an insurer applies the Alabama premium credit against, and it is what a buyer's agent will want to see when you eventually sell.
04
The designation runs on a five-year cycle
A roof designation is not permanent. It runs for five years, after which the home has to be re-evaluated to keep the designation current. Calendar the expiration the day the certificate arrives — an expired designation is the quiet way homeowners lose a premium credit they already paid for.
05
It transfers with the house
A designation attaches to the property, not to the owner. Keep the certificate with the closing documents and hand it to the next owner. On this coast that paperwork is worth having when a house goes on the market.

The five-year clock starts the day you get the certificate

Put the expiration in whatever calendar you actually look at. Re-evaluation before it lapses keeps the designation — and the premium credit attached to it — continuous. Letting it expire is the most common self-inflicted way to lose the benefit you already paid for.

The certificate is what an insurer acts on

A roof built to the standard with no certificate behind it is a better roof and nothing more — there is no document for a carrier to apply a credit against. If the designation is the reason you are doing the work, treat the paperwork as part of the job rather than an afterthought. Here is how the credit gets onto your policy.

Our side of it

The credential behind the work

A page explaining a standard is worth more when the company publishing it can be checked against that standard's own directory. Ours can, in about thirty seconds, and here is exactly what you will find.

Don't take our word for it — look us up

Any roofer on the coast can say the word “fortified.” The FORTIFIED program keeps a public directory of every contractor and every credentialed provider, and you can search it yourself in about thirty seconds. Here is exactly what you will find when you look us up.

Our listing is the company record and the provider record together: the company carries a compliance status, and Dane DeValk carries the individual credential behind it. Search either the company name or the provider ID.

Open the official FORTIFIED directory

Company: Liberty Roofing Company Inc (011483)
Company status: Compliant
Credentialed provider: Dane DeValk — ID R011603
Designation: Roofer — Active

One thing we are not: your evaluator

A FORTIFIED designation is documented by an independent, third-party FORTIFIED Evaluator — a separate credential from ours, held by someone with no stake in the roof job. Liberty is the roofer. We build to the standard and we hand the evaluator the photographs and documentation the standard calls for. We do not inspect our own work for the designation, and you should be suspicious of any roofer who says they do both.

FORTIFIED is a program of IBHS (Insurance Institute for Business & Home Safety) — fortifiedhome.org . Nothing on this page is issued, endorsed, or reviewed by IBHS; it is our summary of their published documentation as read on 2026-08-18.

Common questions

FORTIFIED requirements questions

What are the requirements for a FORTIFIED roof in Alabama?: The Alabama requirements are the FORTIFIED requirements — it is a national standard from IBHS (Insurance Institute for Business & Home Safety), not a state-written code, and Alabama's role is to mandate an insurance credit for homes that meet it. At the FORTIFIED Roof level the stack is: a sealed roof deck acting as a secondary water barrier, ring-shank deck attachment on an upgraded schedule, enhanced drip edge and edge metal fastened tighter around the perimeter, a wind-rated covering installed to high-wind instructions with the ridge, hip, and penetration detailing that goes with it, and rated attic vents and openings. All of it has to be documented as the work happens and reviewed by an independent third-party evaluator. The published requirements live in the public FORTIFIED program documentation at fortifiedhome.org (read 2026-08-18).
What is the difference between FORTIFIED Roof, Silver, and Gold?: They nest. FORTIFIED Roof covers the roof itself and is the level a re-roof can reach on an existing house. Silver is everything in Roof plus the openings and attached structures — gable ends, soffits, chimneys, attached porches and carports — the places a storm gets inside and pressurizes the house. Gold is everything in Silver plus a continuous load path tying the roof through the walls into the foundation. Almost every existing Gulf Coast home starts, and usually stops, at FORTIFIED Roof, because Silver and Gold reach well past the roofline.
Are ring-shank nails actually required?: Ring-shank fasteners are what the deck-attachment requirement is built around, because the rings up the shank resist withdrawal in a way smooth-shank nails do not — and withdrawal is exactly what uplift does to a deck. The specific schedule (pattern and spacing) varies by designation level, deck material, and the wind zone the house sits in, so read it in the published standard rather than taking a spacing figure off any roofing website, including this one.
Can an existing roof be brought up to the FORTIFIED standard?: Usually yes, but almost always at replacement, not as a patch. The sealed deck and the upgraded attachment both require the covering to be off, so there is no meaningful way to reach the standard on a roof that stays on. That is the practical rule: a FORTIFIED retrofit is a re-roof. What varies is what the tear-off reveals — decking that is delaminated, too thin, or spaced too widely to hold the required fastening has to be addressed before the standard is reachable at all.
Who inspects and certifies a FORTIFIED roof?: An independent, credentialed FORTIFIED Evaluator — a separate credential from a roofer's, held by someone with no financial stake in the roof job. You hire the evaluator directly and the fee is yours. Liberty builds to the standard and hands the evaluator the documentation the standard calls for; we do not evaluate our own work, and a contractor who offers to both build and certify your roof is describing something the program does not permit.
Is a FORTIFIED roof worth it?: The case is stronger in coastal Alabama than almost anywhere else, for two reasons that are not sales claims. First, the state mandates a wind-premium credit for designated homes, so the insurance benefit is written in law rather than negotiated with a carrier. Second, the sealed deck changes what happens to your house in the storm you actually get: a covering can leave and the interior can still stay dry. Whether the arithmetic works on your specific house depends on your premium and your roof's condition, and that is a conversation with your insurance agent and a roofer who has been on your roof.
How long does a FORTIFIED designation last?: A roof designation runs for five years, after which the home has to be re-evaluated to stay current. The designation attaches to the property rather than the owner, so it transfers when you sell — keep the certificate with the house documents and note the expiration somewhere you will actually see it.

Keep reading

Find out what the standard would take on your roof

Send us the address and what you know about the roof. We'll tell you which requirements your house is already close to, which ones it isn't, and what reaching the designation would actually involve — before you commit to anything.