Wind Mitigation Inspection Florida: What Homeowners Need to Know

The Short Answer

A wind mitigation inspection is a detailed evaluation of your home’s hurricane-resistant construction features, performed by a licensed inspector and documented on the state-mandated OIR-B1-1802 form. In Florida, this inspection can unlock insurance premium discounts of 10% to 30% or more, depending on which wind-resistant features your home has. The inspection takes 30 to 60 minutes, costs between $75 and $200 in the Miami area, and is one of the highest-return investments a South Florida homeowner can make. If you have impact windows or impact doors, you are already well on your way to qualifying for the maximum savings.

What Is a Wind Mitigation Inspection?

A wind mitigation inspection is a specialized property inspection focused exclusively on how well your home can withstand hurricane-force winds. It is not a general home inspection, a four-point inspection, or a code compliance review. The sole purpose is to identify and document wind-resistant construction features that reduce the risk of storm damage, which in turn justifies insurance premium reductions under Florida Statute 627.0629.

The inspection is conducted by a licensed inspector — typically a licensed home inspector, general contractor, engineer, or architect — who is authorized to complete the OIR-B1-1802 Uniform Wind Mitigation Inspection Form. This form is standardized across the state, meaning every insurer in Florida must accept it and apply the discounts it verifies.

How It Differs From a Four-Point Inspection

Many homeowners confuse wind mitigation inspections with four-point inspections, but they serve entirely different purposes:

Feature	Wind Mitigation Inspection	Four-Point Inspection
Purpose	Document hurricane-resistant features	Assess condition of HVAC, electrical, plumbing, and roof
Insurance impact	Mandatory premium discounts	Required by insurers for older homes
Form used	OIR-B1-1802	No standard form
Focus	Roof shape, deck attachment, opening protection	System age, condition, and safety
Cost	$75–$200	$100–$250

Some homeowners choose to get both inspections at once, especially when purchasing a home or switching insurance providers. The My Safe Florida Home program offers free wind mitigation inspections to eligible homeowners.

What Does the Inspector Evaluate?

The OIR-B1-1802 form has seven sections, and the inspector will evaluate each one methodically. Here is what they are looking for:

1. Roof Covering

The inspector documents the type and year of your roof covering. If your roof was installed after 2002 (when the Florida Building Commission adopted enhanced wind-resistance standards), it may qualify for a discount automatically. Older roofs can still qualify if they meet specific uplift resistance standards documented by manufacturer testing.

2. Roof-to-Wall Attachment

This is one of the most critical structural elements. The inspector will enter your attic to examine how the roof trusses or rafters are connected to the top plate of your walls:

Toe nails — Basic nailing; minimal or no discount
Clips — Metal connectors; moderate discount
Single wraps — Strapping that wraps over the top of the truss; strong discount
Double wraps — Strapping that wraps over and is secured on both sides; maximum structural discount

Homes built after 2005 in Miami-Dade typically use clips or wraps due to post-Hurricane Andrew code changes, but older homes may only have toe nails.

3. Roof Geometry

The shape of your roof significantly affects how wind interacts with your home:

Hip roof — Slopes on all four sides; deflects wind efficiently; earns the maximum geometry discount
Gable roof — Triangular end walls catch wind like a sail; reduced or no discount unless reinforced
Flat roof — Evaluated separately; discount depends on attachment and covering

If you have a hip roof, you are in the best position for savings. If you have a gable roof, the inspector will check whether the gable end is braced internally.

4. Garage Door

Garage doors are large, vulnerable openings. If your garage door is impact-rated, pressure-rated, or has a posted wind load rating, it contributes to your discount. Standard non-rated garage doors do not qualify. Many Miami homeowners overlook this opening until an inspector flags it.

5. Wall Construction Type

The inspector verifies whether your walls are reinforced masonry (concrete block), frame (wood or metal studs), or another type. In Miami-Dade, most homes are concrete block construction, which already qualifies for a basic discount due to its mass and rigidity.

6. Secondary Water Resistance

This refers to a protective barrier between the roof sheathing and the roof covering — typically a self-adhering membrane or foam sealant that prevents water intrusion if shingles or tiles are blown off. It is invisible from the ground and requires attic access to verify. Homes built after 2008 in most Florida counties must have this by code, but older homes rarely do unless retrofitted.

7. Opening Protection

This section is where impact windows and doors deliver the most significant savings. The inspector evaluates every exterior opening — windows, doors, and skylights — to determine whether it has impact-rated protection:

Protection Level	Qualification	Typical Discount Impact
Impact-rated windows/doors — permanently installed	NOA or FBC approval	Maximum opening protection discount
Hurricane shutters — tested and permanently attached	AAMA or Florida Product Approval	Near-maximum discount
Plywood or panels — temporary, untested	Not rated	No discount
Unprotected openings	Standard glass	No discount, potential surcharge

Impact windows earn the highest level of discount because they are always in place, require no homeowner action before a storm, and are tested to withstand large missile impacts followed by cyclic wind pressure. If every opening in your home is protected with impact-rated products, you qualify for the maximum opening protection credit.

How Much Can You Save?

The exact savings vary by insurer, policy, and home characteristics, but the typical range is:

Roof shape (hip): 5%–10% premium reduction
Roof-to-wall attachment (clips or wraps): 5%–10%
Secondary water resistance: 5%–8%
Opening protection (impact windows throughout): 10%–15%
Combined maximum: 30%–45% in some cases

For a Miami homeowner paying $4,000 annually for windstorm coverage, a 30% discount saves $1,200 per year. Over ten years, that is $12,000 in savings — often enough to offset a significant portion of the cost of installing impact windows.

Even homes without impact windows can see meaningful savings. A home with a hip roof, clips, and secondary water resistance might save 15% to 20% before any opening upgrades. But the single largest individual discount category is opening protection, which is why installing impact windows is financially compelling even before accounting for storm protection and energy efficiency.

How to Prepare for the Inspection

Preparation is straightforward, but a few steps can make the process smoother and ensure the inspector can access everything they need:

Clear attic access — The inspector must photograph roof-to-wall connections and secondary water resistance. Move boxes or insulation that block the attic hatch.
Gather documentation — If you have a wind mitigation form from a previous inspection, product approval numbers (NOAs) for your impact windows, or permit records for your roof replacement, have them ready.
Unlock gates and doors — Exterior access to garage doors, sliding glass doors, and all windows is necessary.
Trim vegetation — Inspectors occasionally need to photograph roof edges. Overhanging branches can block their view.
Schedule during daylight — Attic photography requires natural or good artificial light.

If you recently installed impact windows or doors, ask your contractor for the Notice of Acceptance (NOA) numbers. The inspector will document these on the form, and having the numbers speeds up the process.

What Happens After the Inspection?

Once the inspection is complete, the inspector submits the OIR-B1-1802 form, typically within 24 to 48 hours. You will receive a copy, usually as a PDF. Here is what to do next:

Review the form — Verify that your impact windows and doors are correctly documented with manufacturer names and NOA numbers.
Submit to your insurance company — Email or upload the form to your agent or carrier. Most insurers apply the discount at your next policy renewal.
Request a re-inspection if needed — If you believe an item was missed or incorrectly classified, you can request a re-inspection from the same inspector or hire another licensed professional.
Keep records — Retain the form, your receipts, and product documentation for as long as you own the home. Future buyers will want to see the wind mitigation history.

If you upgrade your home after the inspection — for example, by installing impact windows where you previously had standard glass — you can request a new inspection and capture additional discounts immediately. There is no waiting period.

When Should You Get a Wind Mitigation Inspection?

The best times to schedule an inspection are:

After installing impact windows or doors — Capture the new discounts immediately
When buying a home — Negotiate with full knowledge of insurance costs
When switching insurers — New carriers require a current form, typically less than five years old
After a roof replacement — New roofs often qualify for higher discounts
Before hurricane season — Beat the spring rush when inspectors’ schedules fill up

In the Miami area, May and early June are the busiest months. Scheduling in April or late winter usually means faster appointments and more inspector availability.

Common Mistakes to Avoid

Hiring an unlicensed inspector — Only licensed professionals can complete the OIR-B1-1802. Unlicensed inspections are rejected by insurers.
Waiting until after a storm — Insurers may impose moratoriums on new policies and inspections as a hurricane approaches.
Assuming new construction automatically qualifies — Even new homes need a wind mitigation inspection to document the features. Building code compliance is not the same as insurance documentation.
Ignoring garage doors — A single non-rated garage door can reduce or eliminate your opening protection discount, even if every window is impact-rated.
Forgetting skylights — Skylights are openings too. If they are not impact-rated, they may disqualify you from the maximum discount.

Ready to Maximize Your Insurance Savings?

A wind mitigation inspection is the fastest way to reduce your Florida homeowners insurance premiums, and installing impact windows and impact doors unlocks the largest single discount category. If you are considering an upgrade, the combination of storm protection, energy efficiency, and long-term insurance savings makes impact-rated products one of the smartest investments for South Florida homes.

Contact National Glass & Construction for a free consultation on impact windows and doors for your Miami-Dade, Broward, or Palm Beach home. Our team can walk you through available products, help you understand how they affect your wind mitigation form, and provide the documentation your insurer requires.