Florida Opening Protection Wind Mitigation Guide

Opening protection is one of the strongest and most valuable wind mitigation credits in Florida.

How Opening Protection Is Graded on the Wind Mitigation Form

Inspectors evaluate the weakest form of wind‑borne debris protection installed on the structure. This includes all glazed and non‑glazed openings: windows, entry doors, sliding glass doors, skylights, and garage doors. The OIR‑B1‑1802 form uses a detailed protection chart (Levels A through Z) to determine the correct category.

Opening Protection Levels (Florida OIR‑B1‑1802)

• Level A – Highest protection (impact‑rated):
  All glazed openings are protected with products that meet cyclic pressure and 9‑lb large missile impact standards (4.5 lb for skylights). Acceptable testing standards include:
  • Miami‑Dade PA 201, 202, 203
  • TAS 201, 202, 203
  • ASTM E1886 & ASTM E1996
  • SSTD 12
  • ANSI/DASMA 115 (garage doors)
  (Matches: “Verified cyclic pressure & large missile (9 lb)… Level A.”)
• Level B – Impact‑rated (4–8 lb large missile):
  All glazed openings are protected with products meeting cyclic pressure and 4–8 lb large missile impact standards (2–4.5 lb for skylights). Acceptable testing standards include:
  • ASTM E1886 & E1996
  • SSTD 12
  (Matches: “Verified cyclic pressure & large missile (4–8 lb)… Level B.”)
• Level C – Wood structural panels:
  All glazed openings are covered with plywood or OSB meeting FBC 2007 Table 1609.1.2 requirements.
  (Matches: “Verified plywood/OSB meeting Table 1609.1.2… Level C.”)
• Level D – Rated non‑glazed openings:
  Non‑glazed entry or garage doors meeting:
  • ASTM E330
  • ANSI/DASMA 108
  • PA/TAS 202
  (Matches: “Verified non‑glazed entry or garage doors… Level D.”)
• Level N – Unverified systems:
  Shutters or coverings that appear to be A or B but lack documentation, or coverings that cannot be identified as A, B, or C.
  (Matches: “Opening protection products that appear to be A or B but are not verified… Level N.”)
• Level X – No wind‑borne debris protection:
  One or more glazed openings have no protection.
  (Matches: “No windborne debris protection… Level X.”)
• Level Z – Damaged openings:
  One or more openings are damaged and require repair or replacement.
  (Matches: “Damaged openings in need of repair/replacement… Level Z.”)

How the Wind Mitigation Form Determines Your Final Category

The inspector marks each opening type (windows, entry doors, garage doors, skylights, glass block) on the protection chart. The lowest row (weakest level) found among all glazed openings determines the final category for glazed openings. The same rule applies to non‑glazed openings.

Which Opening Protection Level Provides the Best Credit?

Level A provides the strongest wind mitigation credit. Homes with fully impact‑rated windows, doors, skylights, and garage doors typically receive the largest premium reductions.
Level X (no protection) provides no credit and often results in higher premiums.

Why Opening Protection Matters for Insurance

Opening protection dramatically reduces the risk of internal pressurization and catastrophic structural failure during hurricanes. Because of this, carriers apply substantial discounts when impact‑rated protection is present. This is often the single most valuable wind mitigation credit.

How Inspectors Verify Opening Protection

• Product approval numbers (Florida or Miami‑Dade)
• Manufacturer labels or etchings
• Testing standard documentation (ASTM, TAS, SSTD)
• Photographs of shutters, panels, or impact windows
• Garage door reinforcement documentation

If you have a wind mitigation report and want to know how opening protection affects your premium, I can review the form and apply all eligible credits across multiple Florida carriers.

Wind Mitigation Knowledge Center

Explore detailed guides for each wind mitigation feature:

• Florida Roof Covering & Product Approval Listing
• Roof Deck Attachment
• Roof‑to‑Wall Connection
• Roof Geometry
• Sealed Roof Deck / Secondary Water Resistance (SWR)
• Opening Protection
• Florida Wind Mitigation Inspection Hub

For personalized quotes with all eligible wind mitigation credits applied, visit our
Florida Homeowners Insurance Quote Page.

Disclaimer: This guide reflects my interpretation of the Florida wind mitigation inspection form for the purpose of applying insurance credits. It is not a substitute for a licensed inspection. If you need clarification on any construction feature, material, or compliance item, please consult a licensed Florida home inspector or contractor.

Get a Florida Home Insurance Quote

No matter where you live in Florida, I can help you compare rates from multiple carriers and find the best homeowners insurance options for your property.