100+ Free InterNACHI Wind Mitigation Practice Questions

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How many primary inspection sections (questions) are on the OIR-B1-1802 form that determine wind mitigation credit?

Twelve

Ten

Seven

Five

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Key Facts: InterNACHI Wind Mitigation Exam

Exam Questions

InterNACHI Wind Mitigation final exam

OIR-B1-1802 Sections

Florida Office of Insurance Regulation

10%

Max Non-Hip Perimeter

OIR-B1-1802 hip roof rule

Course & Exam Fee

Free for InterNACHI members

175+ mph

HVHZ Design Wind Speed

Florida Building Code

DBPR

Florida CE Approved

Florida Department of Business and Professional Regulation

The InterNACHI Wind Mitigation Inspector certification is a free, DBPR-approved online course covering every section of Florida's OIR-B1-1802 form. Inspectors learn to document hip vs. gable roof shape, FBC-equivalent roof cover, Type A/B/C deck attachment, toe-nail-to-double-wrap connectors, Secondary Water Resistance, and impact-rated opening protection. Passing the 50-question exam earns the InterNACHI Wind Mitigation designation, which property and casualty insurers in Florida widely accept.

Sample InterNACHI Wind Mitigation Practice Questions

Try these sample questions to test your InterNACHI Wind Mitigation exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which Florida form does the InterNACHI Certified Wind Mitigation Inspector course train inspectors to complete?

A.Florida Form 1040-WM

B.OIR-B1-1802 Uniform Mitigation Verification Inspection Form

C.FBC-WIND-2026 Inspection Form

D.DBPR HI-WMC Inspection Form

Explanation: The OIR-B1-1802 is the Florida Office of Insurance Regulation's Uniform Mitigation Verification Inspection Form. Insurers in Florida are required to accept it as documentation of wind-resistant features for premium discounts.

2How many primary inspection sections (questions) are on the OIR-B1-1802 form that determine wind mitigation credit?

A.Five

B.Seven

C.Ten

D.Twelve

Explanation: The OIR-B1-1802 has seven primary inspection questions: building code, roof covering, roof deck attachment, roof-to-wall attachment, roof geometry, secondary water resistance, and opening protection.

3Which two Florida counties make up the High-Velocity Hurricane Zone (HVHZ) under the Florida Building Code?

A.Miami-Dade and Broward

B.Monroe and Collier

C.Palm Beach and Martin

D.Lee and Charlotte

Explanation: Under the Florida Building Code, only Miami-Dade and Broward counties are designated as the High-Velocity Hurricane Zone (HVHZ), which imposes the strictest wind-resistance and product approval requirements in the state.

4The first edition of the Florida Building Code (FBC) was adopted statewide and took effect in what year, a date central to the OIR-B1-1802 'Building Code' question?

A.1992

B.1998

C.2001

D.2006

Explanation: Florida adopted its first statewide unified Florida Building Code with an effective date of March 1, 2002, often referenced on the OIR-B1-1802 as 'built to the 2001 FBC.' Homes permitted under the 2001 FBC or later qualify for the modern code credit.

5For non-HVHZ homes, the OIR-B1-1802 'Building Code' question generally distinguishes structures permitted before what date from those permitted on or after that date?

A.January 1, 1995

B.March 1, 2002

C.October 1, 2007

D.July 1, 2020

Explanation: For non-HVHZ properties, the form's building code threshold corresponds to the original 2001 FBC adoption with an effective date of March 1, 2002. Homes permitted on or after that date are treated as 'built to' the modern FBC.

6Inside the HVHZ (Miami-Dade and Broward), the OIR-B1-1802 'Building Code' question uses an earlier permitting threshold than the rest of the state because:

A.HVHZ counties had stricter wind codes in place under the South Florida Building Code (SFBC) before the unified FBC

B.HVHZ counties adopted the IRC two decades before Florida did

C.Federal wind code applies to HVHZ counties and bypasses state code

D.HVHZ counties have no permitting requirements before 2001

Explanation: Before the statewide FBC, Miami-Dade and Broward enforced the South Florida Building Code, which following Hurricane Andrew (1992) was substantially upgraded for wind resistance. The OIR-B1-1802 recognizes this by allowing an earlier permitting threshold for HVHZ structures.

7Which event most directly drove Florida to overhaul its wind-resistance building codes in the 1990s?

A.Hurricane Hugo (1989)

B.Hurricane Andrew (1992)

C.Hurricane Charley (2004)

D.Hurricane Wilma (2005)

Explanation: Hurricane Andrew (1992) caused catastrophic damage to South Florida and exposed widespread non-compliance with the existing code. The aftermath drove enforcement reform and ultimately the statewide unified Florida Building Code.

8Per the OIR-B1-1802, what document or evidence is the BEST primary source for confirming the year a home was permitted for original construction?

A.Realtor MLS listing

B.Property appraiser/tax record

C.Original building permit and/or local jurisdiction permit records

D.Owner verbal statement

Explanation: Permit records from the local building department are the most authoritative source for the year of original permit. Appraiser/tax records are acceptable secondary evidence; MLS and owner statements are not adequate on their own.

9An HVHZ home was permitted on March 15, 1994. Under the OIR-B1-1802, what is the inspector likely to record for Question 1 (Building Code)?

A.Built in compliance with the FBC and SFBC requirements (HVHZ post-9/1/1994 threshold)

B.Not built to the modern code

C.Built to the 2017 FBC

D.Unknown - cannot be determined

Explanation: The HVHZ threshold on the OIR-B1-1802 uses a post-September 1, 1994 permit date for the SFBC/FBC credit. A March 15, 1994 permit is BEFORE that threshold, so the home is NOT marked as built to the modern code.

10Which agency publishes and maintains the Florida Building Code?

A.Florida Office of Insurance Regulation (OIR)

B.Florida Building Commission under DBPR

C.U.S. Department of Housing and Urban Development

D.International Code Council exclusively

Explanation: The Florida Building Commission, administered under the Department of Business and Professional Regulation (DBPR), develops and adopts the FBC. The code is based on ICC model codes but modified for Florida.

About the InterNACHI Wind Mitigation Exam

InterNACHI's Certified Wind Mitigation Inspector course trains home inspectors to complete the Florida OIR-B1-1802 Uniform Mitigation Verification Inspection Form. The credential is DBPR-approved in Florida and recognized by the insurance industry to support homeowner premium discounts. Topics align directly to the seven OIR-B1-1802 sections: building code, roof covering, roof deck attachment, roof-to-wall attachment, roof geometry, secondary water resistance, and opening protection.

Questions

50 scored questions

Time Limit

Self-paced

Passing Score

Weighted; ~80 cut-off

Exam Fee

$0 for members (InterNACHI (International Association of Certified Home Inspectors))

InterNACHI Wind Mitigation Exam Content Outline

~30%

OIR-B1-1802 Form & Florida Building Code

Form structure, building code year brackets, HVHZ provisions, and credit qualification logic

~30%

Roof Shape, Cover & Deck Attachment

Hip vs. gable, FBC-equivalent vs. non-FBC roof cover, Type A/B/C deck attachment, product approval

~25%

Connections & Secondary Water Resistance

Toe nails, clips, single/double wraps, structural connectors, and SWR membrane systems

~15%

Opening Protection

Impact-rated windows and doors, TAS 201/202/203 testing, shutters, garage doors, all-openings rule

How to Pass the InterNACHI Wind Mitigation Exam

What You Need to Know

Passing score: Weighted; ~80 cut-off
Exam length: 50 questions
Time limit: Self-paced
Exam fee: $0 for members

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

InterNACHI Wind Mitigation Study Tips from Top Performers

1Print the current OIR-B1-1802 form and walk through each of the seven sections until you know them cold

2Memorize the FBC year brackets: built before/after the 2001 Florida Building Code, and the special HVHZ rules for Miami-Dade and Broward

3Learn the 10-percent rule for hip roofs - non-hip features must be 10% or less of total roof perimeter

4Memorize Type A, B, and C deck attachment: nail size (6d vs 8d), spacing (6 in vs 12 in), and equivalent system rules

5Drill roof-to-wall connector identification: toe nails, clips, single wraps, double wraps, structural connectors - know nail counts and contact rules for each

6Know that 30-pound felt underlayment does NOT qualify as Secondary Water Resistance; SWR requires self-adhered membranes or foam-sealed seams

7Memorize the TAS protocols: TAS 201 (large missile impact), TAS 202 (uniform static load), TAS 203 (cyclic wind pressure)

8Remember the all-openings rule: every opening must be protected to earn the highest opening protection credit

Frequently Asked Questions

What is the InterNACHI Certified Wind Mitigation Inspector credential?

It is a free online certification offered by InterNACHI that trains home inspectors to complete the Florida OIR-B1-1802 Uniform Mitigation Verification Inspection Form. The course is approved by Florida's Department of Business and Professional Regulation (DBPR) for continuing education credit, and property and casualty insurers in Florida accept the credential as documentation that the inspector is qualified to complete a wind mitigation inspection.

What is the OIR-B1-1802 form?

The OIR-B1-1802 is the Florida Office of Insurance Regulation's Uniform Mitigation Verification Inspection Form. Florida law requires insurers to use this form when documenting hurricane-resistant features for premium discount eligibility. The form has seven sections: (1) building code, (2) roof covering, (3) roof deck attachment, (4) roof-to-wall attachment, (5) roof geometry, (6) secondary water resistance, and (7) opening protection.

How many questions are on the InterNACHI Wind Mitigation exam?

The InterNACHI Wind Mitigation final exam contains 50 multiple-choice questions delivered through the InterNACHI online learning portal. Our free practice bank contains 100 exam-aligned questions so you can drill each OIR-B1-1802 section multiple times before sitting for the official exam.

What is the difference between Type A, Type B, and Type C roof deck attachment?

Type A is the weakest: staples or 6d nails on the standard spacing pattern (typically 6 inches on edges and 12 inches in the field). Type B is stronger: 8d nails at typical spacing (6/12) or any documented system providing equivalent uplift resistance. Type C is the strongest: 8d nails spaced a maximum of 6 inches on-center in both edges and field, or any system providing equivalent or greater shear/uplift performance, including structural panel adhesives or rated screw systems.

What roof shape qualifies for the hip-roof discount on the OIR-B1-1802 form?

To qualify as 'Hip Roof' on the OIR-B1-1802, the total length of non-hip features (gable ends, dormers, etc.) must be no more than 10 percent of the total roof system perimeter. Anything more than 10 percent of non-hip features is classified as 'Other' (which does not earn the hip discount). Flat roofs and other geometries are separate categories.

What is Secondary Water Resistance (SWR) and how does it earn a discount?

Secondary Water Resistance is an additional barrier installed between the roof deck and the primary roof covering to limit water intrusion if the primary covering is damaged. Acceptable SWR systems include self-adhering peel-and-stick membranes (modified bitumen, etc.) over the entire deck, or closed-cell polyurethane foam sealing all roof deck seams. Standard 30-pound felt underlayment alone does NOT qualify as SWR.

Does opening protection require all openings to be protected?

Yes. To receive the highest 'Hurricane Protection' credit on the OIR-B1-1802, every glazed opening (windows, glass doors, skylights) AND non-glazed openings (entry doors, garage doors) must be protected with impact-rated assemblies or hurricane shutters meeting the appropriate standard. Partial protection (e.g., shutters on some windows but not others) typically yields no Category A credit; lesser categories apply when protection is incomplete.

100+ Free InterNACHI Wind Mitigation Practice Questions

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