TL;DR: A Florida wind mitigation inspection is a formal, licensed assessment of your home's wind-resistant features. The written report goes to your insurer, who uses it to apply specific premium credits. Upgrading features like roof shape, roof-to-wall connections, and opening protection, including impact windows and doors, can each affect your discount tier.
What Happened
Florida law allows homeowners to request a wind mitigation inspection at any time. The inspection uses a standardized form, OIR-B1-1802, developed by the Florida Office of Insurance Regulation. Insurers are required to offer premium credits based on the documented features on that form.
The form has been revised several times. The current version focuses on a defined set of construction attributes. Inspectors must hold a Florida license in one of several categories, including general contractor, building inspector, home inspector with specific wind mitigation training, or engineer.
In South Florida, wind mitigation inspections are common because insurance premiums are high and the credits can be substantial. Under the Florida Building Code, the High-Velocity Hurricane Zone (HVHZ) is specifically defined as Miami-Dade and Broward counties only. Palm Beach, Martin, and St. Lucie counties fall within the Wind-Borne Debris Region but are not part of the HVHZ, which means different code requirements apply depending on which county your home is in. Regardless of HVHZ status, every credit category becomes more financially meaningful in higher-risk coastal areas.
Why It Matters
The OIR-B1-1802 form evaluates several distinct attributes. Each one maps to a credit category on your insurance policy. Here is a plain-English breakdown of what an inspector actually examines.
Roof Covering
The inspector documents what type of roofing material is present and whether it was installed with a permit after a specific code year. Florida Building Code-compliant roofing materials carry better credits than older or non-permitted installations.
Roof Deck Attachment
This measures how the plywood or OSB sheathing is fastened to the roof trusses. The inspector looks at nail size, nail spacing, and staple versus nail patterns. Tighter fastening schedules earn better credits.
Roof-to-Wall Connection
This is one of the most impactful categories. The inspector checks whether your roof trusses connect to the wall structure using clips, single wraps, double wraps, or structural anchors. Double wraps and structural anchors earn the highest credits. Toenails, which were common in older construction, earn the lowest.
Roof Shape
Hip roofs, where all four sides slope down to the walls, perform better in high winds than gable roofs. The inspector classifies your roof geometry and notes the percentage of each type if your home has a mixed configuration.
Opening Protection
This is where your windows, doors, and garage doors come in. The inspector documents what type of protection each opening has, if any. The three recognized categories are impact-rated glazing, code-compliant shutters or panels, and no protection.
For the highest credit, every opening in the building envelope must be protected to the applicable Miami-Dade or Florida Product Approval standard. A single unprotected opening, such as a garage door without a rated panel or a window without impact glass, can drop the entire home to a lower tier.
This is a critical point that surprises many homeowners. Partial protection does not earn the same credit as full protection. If you have hurricane impact windows on every opening except the garage, the garage downgrades the whole score.
Similarly, if you have shutters on most windows but an unprotected sliding glass door, your opening protection credit is capped. Hurricane impact doors and rated sliding door systems close that gap.
Secondary Water Resistance
The inspector checks for a self-adhering modified bitumen membrane, sometimes called a peel-and-stick underlayment, applied to the roof deck. This layer helps prevent water intrusion if the roof covering is damaged in a storm. It is a separate credit from roof covering.
Why the Opening Protection Category Deserves Specific Attention
For many South Florida homeowners, opening protection is the credit category with the most room for improvement, because it is the one attribute you can actually upgrade without touching the roof structure. Roof-to-wall connections and deck attachment typically require a re-roof or a structural retrofit. Opening protection can be addressed by replacing windows and doors or adding rated shutters.
The distinction between impact glass and shutters matters here. Both can qualify for the opening protection credit if they carry the right product approvals. The difference is operational. Shutters require deployment before a storm. Impact-rated windows and doors are always in place. Your insurer applies the same credit either way, provided the products are documented correctly.
If you are weighing your options, the article on 10 reasons South Florida homeowners choose impact windows and doors walks through factors beyond the insurance credit, including noise reduction, energy performance, and daily convenience.
Ask your insurer about wind-mitigation documentation. Request a free estimate
What We Don't Know Yet
Several variables affect how much a wind mitigation report will actually reduce your specific premium, and those variables are outside the scope of what any contractor can predict.
Insurer rate filings vary. Each insurer files its own rating plan with the Florida Office of Insurance Regulation. The OIR sets the framework requiring credits, but the dollar value of each credit differs between companies. One insurer may weight roof-to-wall connection heavily. Another may weight opening protection more. Your agent or insurer is the only source for what the credit is worth on your specific policy.
Inspection findings can differ. Two licensed inspectors using the same form can sometimes reach different conclusions about a borderline condition, such as a mixed roof shape or partially visible truss connections. If you dispute a finding, you have the right to request a re-inspection or provide additional documentation.
Code changes create moving targets. Florida Building Code editions affect what qualifies in each category. Products installed under an older code edition may still carry approval, but a re-inspection after new construction or major renovation may be evaluated under a newer standard. Confirming current product approvals is part of any reputable installation process.
Citizens Insurance has its own requirements. If your home is insured by Citizens Property Insurance Corporation, there are additional opening protection thresholds tied to policy eligibility, not just premium credits. Those requirements have their own documentation standards and have been updated in recent years. Your Citizens agent is the authoritative source on your specific policy tier.
What to Do About It
If you have never had a wind mitigation inspection, scheduling one is a reasonable starting point. Pricing varies by provider, region, and scope, so contact local licensed inspectors directly for current quotes rather than relying on any single estimate as representative. The report's validity period varies by insurer; confirm with your specific insurer how long they will accept a report before assuming it remains active.
Before the inspection, gather any documentation you have on your roof, windows, and doors. Product approval numbers, permit records, and installation documentation all help the inspector verify what is in place. Missing documentation can cause an inspector to assign a lower credit tier even if the physical product qualifies.
If your current opening protection is incomplete or undocumented, consider what a full upgrade would look like. A licensed contractor can pull permits and provide installation documentation that becomes part of your inspection record. For a project estimate, you can request an estimate or review what a full window and door replacement project involves.
For homeowners who already have some impact products but are unsure whether every opening qualifies, a review of your existing product approvals is worth doing before a scheduled re-inspection. Products installed without permits or without Florida Product Approval may not earn the credit you expect.
If you are in an older home with original single-pane windows, the 5 signs it may be time to replace your windows article outlines the practical indicators beyond just the insurance question.
For commercial properties in South Florida, opening protection requirements and inspection processes follow different code pathways. The commercial services page outlines how Window Guys approaches those projects.
The broader context of storm season timing also matters. Inspections completed and policy updates processed before June 1 align with the Atlantic hurricane season calendar, giving your updated premium time to take effect before peak storm months. The 2026 hurricane season forecast for South Florida provides current outlook details from NOAA and Colorado State University.
A wind mitigation inspection is paperwork, but it is paperwork grounded in real construction attributes. The features it documents are the same ones that determine how your home performs in a major wind event. Getting the report right, and addressing the gaps it identifies, serves both the financial and the practical goal.
Ask your insurer about wind-mitigation documentation.
Qualifying impact-rated installations may support wind-mitigation credits. Eligibility and premium changes vary by insurer, policy, property, inspection, documentation, and opening protection.
Frequently asked questions
How long is a Florida wind mitigation inspection report valid?
Most insurers accept a wind mitigation report for five years from the inspection date, though individual companies may have shorter acceptance windows. Always confirm with your insurer before assuming your current report is still active. If you have made qualifying upgrades since your last inspection, a new report may reflect better credits.
Does having impact windows automatically earn the top opening protection credit?
Only if every opening in the building envelope is protected to a qualifying standard. A single unprotected opening, such as a garage door without a rated panel, drops the entire home to a lower credit tier. Impact windows on most openings but not all will not earn the maximum discount.
Who is qualified to perform a wind mitigation inspection in Florida?
Florida law specifies several license categories that qualify an inspector, including licensed general contractors, building code inspectors, home inspectors with wind mitigation training, and professional engineers. The inspection must result in a signed OIR-B1-1802 form to be accepted by insurers.
Does window film qualify for the opening protection credit?
Window film alone does not qualify for the opening protection credit under the OIR-B1-1802 form. The form recognizes impact-rated glazing products and code-compliant shutters or panels. Film can provide some additional protection but is not treated the same as rated impact glass or a rated shutter system for insurance purposes.
What documentation should I have ready before a wind mitigation inspection?
Gather permit records, Florida Product Approval numbers for your windows and doors, and any manufacturer documentation for shutters or panels. Roof inspection records and contractor installation paperwork also help. Missing documentation can cause an inspector to assign a lower credit tier even when a qualifying product is physically present.