Most Panhandle homeowners hear about a wind mitigation inspection the same way: an insurance agent mentions it during a renewal conversation, says it might lower the premium, and moves on. What nobody explains is what the inspector is actually looking for, why some houses come back with almost no credit, or how a window and door decision made three years ago shows up on that form.
This is worth understanding, because a wind mitigation inspection is one of the few places where a construction decision converts directly into money every single year for as long as you own the house.
What a wind mitigation inspection is
It is a documented physical inspection of specific wind resistant features of your home, recorded on a standardized state form. The form is the Uniform Mitigation Verification Inspection Form, known in the trade by its number, OIR-B1-1802. Insurers licensed in Florida are required to consider the features it records when rating a windstorm policy.
The inspection is not a home inspection. The inspector is not evaluating your plumbing or your electrical panel. They are documenting seven categories of construction detail, taking photographs to prove each one, and signing the form.
The Florida Office of Insurance Regulation maintains wind mitigation resources for consumers that cover who is authorized to perform the inspection and how long the form stays valid. Two facts from that page are worth carrying with you: inspectors must be authorized under Section 627.711(2)(a), Florida Statutes, and a completed form is generally valid for up to five years provided no material changes are made to the structure and no inaccuracies are found.
The seven things the inspector documents
1. Building code compliance. The year the home was built or substantially improved, and whether it was permitted under a code edition that carried modern wind provisions. This is the anchor for everything else. A home permitted after Florida’s post-2001 code adoption starts from a better baseline.
2. Roof covering. What is on the roof, when it was installed, and whether the permit and product approval documentation exists to show it meets current standards. Age alone is not the question. Documentation is.
3. Roof deck attachment. How the plywood or board sheathing is fastened to the trusses. Nail size and spacing. This is checked in the attic, and it is one of the largest single credits available, because deck loss is how roofs fail.
4. Roof to wall connection. Whether the trusses are toe nailed, held by clips, held by single wrap straps, or held by double wraps. Also inspected in the attic. Another very large credit, and the one homeowners are most often surprised by.
5. Roof geometry. Hip roofs perform better in high wind than gable roofs, because a hip roof has no large flat vertical surface for wind to push against. There is a specific definitional test involving the total length of non-hip features relative to the perimeter.
6. Secondary water resistance. Whether a sealed layer exists beneath the roof covering that keeps water out if the shingles or tiles come off. Either it was installed or it was not.
7. Opening protection. Whether every glazed opening in the home is protected to an impact standard. This is the one that windows and doors decide, and it is the one this article exists to explain properly.
Opening protection: the all or nothing category
Here is the detail that costs homeowners the most money and is explained the least often.
Opening protection is evaluated on the weakest opening in the house. Not the average. Not most of them. The weakest one.
That means a home with impact rated windows on every elevation, an impact rated entry door, and one unprotected garage door does not receive the credit for impact glazing on the windows. The garage door sets the rating. So does a single unprotected bathroom window, a decorative sidelite, a skylight, or a sliding glass door that got value engineered out of the impact package during construction.
Homeowners routinely discover this after the fact. They spent real money hardening most of the house, the inspector walks the perimeter, finds one opening that was overlooked, and the credit that the whole project was supposed to earn does not materialize.
Two practical consequences follow.
First, inventory every opening before you commit to a partial project. Windows, entry doors, sliding glass doors, French doors, garage doors, skylights, glass block, and anything else that lets light in. Count them. If your budget covers eighty percent of them, understand that from an insurance credit standpoint you may be buying eighty percent of the protection and zero percent of the discount, even though the safety benefit is real.
Second, ask what standard each product meets. Not every product marketed for storm protection meets the same test level. The inspector records what the documentation supports. If you cannot produce the product approval or the label, the inspector cannot credit it.
This is where the specification conversation pays off. When we spec impact rated window systems for a Panhandle home, the product approval numbers travel with the order, which means they are available three years later when the inspector asks for them. Documentation you saved is documentation you get paid for.
Why the credit sizes vary so much
Two houses on the same street can get very different results, and the reasons are structural.
- Age and permitting. A home built under an older code edition has more room to gain from documented upgrades, but also more places where documentation does not exist.
- Attic access. If the inspector cannot get into the attic to see the deck attachment and the roof to wall connection, those categories default to the least favorable assumption. An inaccessible attic can cost more credit than any single upgrade earns.
- Roof geometry. You cannot change this without rebuilding the roof, so it is fixed, but it explains a large part of the difference between neighbors.
- Carrier. The state requires insurers to consider mitigation features. It does not set one universal discount table. Different carriers weight the same form differently, which is a real argument for shopping the policy after an upgrade rather than just renewing.
The sequence that actually works
Homeowners get the most out of this by doing things in an order that most people reverse.
- Get the inspection before you spend anything. A baseline form tells you which categories you already pass and which ones are dragging. Paying for upgrades without knowing this is guessing.
- Read the baseline against your budget. If the deck attachment and roof to wall connection are weak, those may be the higher return items. If they already pass and opening protection is the only failing category, windows and doors are your lever.
- Scope opening protection completely or not at all. Partial hardening improves safety. It does not usually improve the form.
- Keep every document. Permits, product approval numbers, NOA or Florida approval printouts, photos taken during installation, and the final inspection sign off. Put them in one folder.
- Reinspect after the work. A new form is what triggers the rate change. The work by itself does nothing until it is documented.
- Shop the policy with the new form in hand. Because carriers weight the categories differently.
What this has to do with hurricane season timing
Two things worth planning around. Custom impact windows and doors are built to order, and lead times lengthen through spring as demand concentrates. And a wind mitigation form is generally good for up to five years, so a form completed right after an upgrade carries you through several renewal cycles.
Working backward from that, the sensible pattern is to inspect in the fall, order in the winter, install in the late winter or early spring, and reinspect before the June 1 start of hurricane season. That sequence puts the new form in front of your carrier before the season starts and puts the actual protection on the house before it is needed.
A note on what a wind mitigation inspection is not
It is not a guarantee of a discount. It is documentation. If the home has no qualifying features, the form records that honestly and nothing changes. It is also not a substitute for a four point inspection, which older homes often need for a different purpose. And it does not evaluate flood risk, which is a separate policy and a separate conversation entirely.
None of that makes it less worth doing. An inspection is inexpensive relative to what it documents, it lasts up to five years, and it is the only mechanism by which the money you spent on impact glazing shows up on a bill.
Frequently Asked Questions
What is a wind mitigation inspection?
A wind mitigation inspection is a documented review of specific wind resistant construction features of a Florida home, recorded on the state’s Uniform Mitigation Verification Inspection Form, OIR-B1-1802. It covers roof covering, roof deck attachment, roof to wall connection, roof geometry, secondary water resistance, opening protection, and code compliance. Insurers use it when rating windstorm coverage.
How long is a wind mitigation inspection good for?
The Florida Office of Insurance Regulation states the form is valid for up to five years, provided no material changes are made to the structure and no inaccuracies are found on the form. If you replace the roof, add an addition, or change opening protection during that window, a new inspection is appropriate.
How much does a wind mitigation inspection cost?
Prices vary by inspector and by market. Relative to the potential multi-year premium effect it is a small expense, which is why insurance agents routinely recommend it even when the outcome is uncertain. Confirm the inspector is authorized under Section 627.711(2)(a), Florida Statutes, before you book.
Do impact windows lower my insurance in Florida?
They can, through the opening protection category on the wind mitigation form. The important condition is that every glazed opening in the home must be protected to qualify, because the category is rated on the weakest opening. Impact windows on most of the house with one unprotected opening usually does not earn the credit.
Does the garage door count as an opening?
Yes. The garage door is a glazed or non-glazed opening in the building envelope and it is evaluated with the rest. An unprotected garage door is one of the most common reasons a home with impact windows fails to receive opening protection credit. It is also structurally one of the most vulnerable openings in a house.
What if the inspector cannot get into my attic?
Categories that require attic verification, specifically roof deck attachment and roof to wall connection, default to the least favorable assumption when they cannot be observed. Those two categories carry significant weight, so an inaccessible attic can cost more than any single upgrade would gain. Clearing access before the appointment is worth the effort.
Can I do a wind mitigation inspection myself?
No. The form must be completed and signed by an inspector authorized under Florida law. Insurers will not accept a homeowner completed form. You can, however, walk your own home first to inventory openings and locate attic access, which makes the appointment more productive.
Will a new roof by itself get me a discount?
It may help in the roof covering category and, depending on how it was installed, in secondary water resistance. It does not change roof deck attachment or roof to wall connection unless that work was done during the reroof. Ask your roofer whether deck refastening and strap or clip upgrades are part of the scope, because that is when they are cheapest to do.
What documents should I keep after installing impact windows?
Keep the permit, the final inspection sign off, the manufacturer’s Florida product approval or Notice of Acceptance number for each product, the labels or photographs of the labels on the units, and the invoice describing what was installed. The inspector documents what can be verified. Missing paperwork is missed credit.
Is a wind mitigation inspection the same as a four point inspection?
No. A four point inspection covers roof, electrical, plumbing, and HVAC, and is usually requested for older homes at binding or renewal. A wind mitigation inspection covers only wind resistant features. Some homeowners need both, and some inspectors perform both in one visit, but they are separate forms with separate purposes.
Does secondary water resistance require a new roof?
Generally it is installed as part of a reroof, since it sits beneath the roof covering. It is a sealed layer, applied to the deck, intended to keep water out if the covering is lost. Because it is buried under the roofing, retrofitting it without reroofing is impractical, which is why it belongs on the conversation list when the roof is already coming off.
Should I get the inspection before or after replacing windows?
Both, ideally. A baseline inspection before the project tells you which categories are actually costing you and whether opening protection is your best lever. A new inspection after the project is what documents the improvement and triggers a rate review. The work alone changes nothing until a new form exists.
Ready to Close the Gaps in Your Opening Protection?
Bring your current wind mitigation form or just a list of your openings. We will tell you honestly whether a full opening protection package is within reach for your home or whether your money is better spent elsewhere first.
Visit the showroom at 17601 Ashley Dr, Bldg A-Suite 1, Panama City Beach, FL 32413, or call (850) 851-8249.

