Wind Mitigation Inspections Explained: What Inspectors Actually Check

Every Florida homeowner has heard that a wind mitigation inspection can lower their insurance premium. Far fewer understand what actually happens during that inspection, what an inspector is actually looking for, or how the resulting discount is actually calculated. Understanding the real mechanics helps you know what to expect — and what specific upgrades might genuinely move your discount tier.

At Prestige Insurance Group, we help Florida homeowners understand their wind mitigation results and apply them to real premium savings. Learn more about our Florida Homeowners Insurance solutions.

The Official Form Behind Every Inspection

A Florida wind mitigation inspection is a state-standardized assessment documented on the Uniform Mitigation Verification Inspection Form, known as OIR-B1-1802. Every Florida insurer is legally required to use this form’s results when applying premium credits — meaning the discount you receive isn’t a marketing gimmick, it’s a state-mandated evaluation tied directly to statute. Inspections must be performed by a qualified inspector as defined under Section 627.711(2), Florida Statutes, and once completed, the form remains valid for up to five years, provided no material changes are made to the structure in the meantime.

The Seven Categories an Inspector Actually Evaluates

Building code era is recorded first — when your home was built or last re-roofed relative to Florida’s building code timeline. Homes built to the 2001 Florida Building Code, effective March 1, 2002, or later earn a baseline structural credit. Homes in High-Velocity Hurricane Zone counties — specifically Miami-Dade and Broward — are instead evaluated against the earlier 1994 South Florida Building Code, since those counties adopted stricter hurricane standards well before the rest of the state.

Roof covering documents the type and installation method of your roofing material, with products meeting Florida Product Approval standards scoring more favorably than older or non-approved materials.

Roof deck attachment examines how the plywood or OSB decking is fastened to your home’s rafters or trusses — genuinely one of the most consequential categories. This is scored on a scale from Level A to Level D based on nail type and spacing: Level A represents the weakest attachment (staples or 6d nails at 6-inch spacing), while Level D represents the strongest (8d ring-shank nails at 6-inch spacing on edges and field, or equivalent). Level C and D attachments provide the largest available discounts in this category.

Roof-to-wall connection assesses the weakest connection point between your roof and your walls — the hardware and method actually holding your roof onto your house during high winds, whether toe nails, clips, single wraps, or double wraps.

Roof geometry (or roof shape) documents your roof’s overall structural design, since certain shapes perform more predictably in high wind events than others.

Secondary water resistance (SWR) verifies whether a sealed roof deck is present beneath your roof covering — an additional barrier that helps prevent water intrusion if the primary roof covering is damaged during a storm.

Opening protection documents whether your windows and doors are protected against wind-borne debris, whether through impact-rated glass, approved shutters, or other qualifying protection methods.

What Actually Happens During the Inspection

A typical wind mitigation inspection takes 30 to 60 minutes. The inspector examines your roof’s exterior from the ground and, where accessible, from the roof surface itself. Critically, the inspector also enters your attic to photograph and directly verify the roof deck attachment pattern — measuring actual nail size and spacing rather than relying on assumptions — along with the specific type of roof-to-wall connectors present. All findings are documented with photographs and submitted on the official form, which you should receive a copy of within a few business days to forward to your insurance carrier.

How Much Can You Actually Save?

Credits from wind mitigation apply only to the windstorm portion of your premium — not your entire policy — but within that portion, Florida law caps the maximum available credit at 88% off, under Florida Statute 627.0629. For a typical Florida home built after 2002 with well-documented mitigation features, this commonly works out to $800 to $2,500 per year in real, ongoing savings. The credits from different categories aren’t simply additive — the roof deck attachment and roof-to-wall connection categories in particular are evaluated together, and your insurer’s rating engine combines all seven categories up to that statutory ceiling.

A Genuinely Important, Very Recent Update

This is worth knowing directly if you’re scheduling an inspection now: a revised version of the form, OIR-B1-1802 (Rev. 04/26), was approved by the Florida Cabinet in September 2025 and became mandatory for all wind mitigation inspectors to use starting April 1, 2026. The most significant change introduces performance-based retrofit evaluation options for roof-to-wall attachment categories — Clips, Single Wraps, and Double Wraps can now be assessed based on tested and documented allowable wind uplift capacity, rather than relying solely on visual geometry as the prior form required. If your home has undergone a documented retrofit, this update may genuinely improve how that work is credited compared to how it would have been evaluated under the older form.

Which Category Matters Most for Your Specific Home

Given how the credits interact, the two roof-related categories — deck attachment and roof-to-wall connection — along with opening protection, tend to move your premium the most among all seven categories. If you’re deciding where to invest in upgrades before scheduling an inspection, these three categories generally offer the strongest return relative to their cost.

Frequently Asked Questions

How long is a wind mitigation inspection report valid? Up to five years, provided no material changes have been made to the structure during that time.

Does the inspector go into my attic? Yes — verifying the roof deck attachment pattern and roof-to-wall connector type requires direct attic access, not just an exterior review.

Is there a maximum discount I can receive? Yes — Florida law caps the windstorm portion credit at 88% off, though the total dollar savings depends on your specific policy and coverage.

Does a new roof automatically improve my wind mitigation credit? Often yes, particularly if it includes modern deck attachment methods and meets current Florida Product Approval standards, but the actual credit depends on documented specifics, not just the roof’s age.

What changed with the form update effective April 2026? Roof-to-wall attachment retrofits can now be credited based on tested wind uplift performance rather than visual assessment alone, potentially benefiting homes with documented retrofit work.

Getting the Full Value From Your Wind Mitigation Inspection

Understanding exactly what an inspector evaluates — and how those seven categories translate into real premium savings — helps you get genuine value from an inspection that typically costs just $75 to $150, one of the highest-return investments available to a Florida homeowner.

Prestige Insurance Group helps Florida homeowners understand their wind mitigation results and apply them toward real, ongoing insurance savings.

Contact Prestige Insurance Group today:

Miami: 305-969-8776 Orlando: 407-993-2331 Stuart: 561-983-4333

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