Florida has some of the strictest building codes in the country when it comes to wind-resistant construction. Understanding what's required — and what that means for permits — can save you time and money on your next project.
If you've shopped for hurricane protection in South Florida, you've probably heard terms like 'Miami-Dade approved,' 'NOA certified,' or 'Florida Product Approval.' These aren't just marketing terms — they're legal requirements that determine what products can be installed in your home. Here's what you need to know.
Why Florida's Building Code Is Different
Hurricane Andrew hit South Florida in August 1992 with catastrophic results — not just because of the storm's intensity, but because thousands of homes built to the then-current code failed far worse than they should have. In the aftermath, Florida overhauled its building code to be among the strictest in the country for wind-resistant construction.
Today, the Florida Building Code requires impact-rated or shutter-protected openings in the wind-borne debris region, which covers all of South Florida within one mile of the coast and areas with design wind speeds above 130 mph. This means that when you replace a window or door in most of Broward, Miami-Dade, or Palm Beach County, the replacement must be code-compliant — not just similar to what was there before.
What the Code Requires for Impact Products
For a window or door to be code-approved in Florida's wind-borne debris region, it must be tested and certified to resist specific performance criteria:
- Large missile impact test: The product must withstand the impact of a 9-pound 2×4 traveling at 50 feet per second
- Cyclic wind pressure test: After the impact, the product must survive 9,000 cycles of positive and negative wind pressure without failure
- Design pressure rating: Each product is rated for a specific maximum wind load (measured in pounds per square foot), and installation must match the product to your home's design wind speed
- Water infiltration resistance: Products must pass water infiltration testing to prevent rain intrusion under design wind pressure
Miami-Dade NOA: The Gold Standard
Miami-Dade County requires an additional layer of certification called a Notice of Acceptance (NOA). This is the most rigorous product approval standard in the United States — products tested for NOA approval must survive conditions that exceed the Florida Building Code minimums. When a product carries a Miami-Dade NOA, it means it has been independently tested and verified to perform under the most extreme South Florida storm conditions.
All products installed by Orlando T Group carry Miami-Dade NOA certifications. This is the only standard we accept — because it's the only standard that gives you genuine confidence your home is protected.
What This Means for Permits
Every window and door replacement in Florida — including impact windows and doors — requires a building permit. This is not optional. The permit process exists to ensure that the product being installed is appropriate for your home's design wind speed, that the installation method matches the product's NOA specifications, and that a licensed inspector verifies the work before it's enclosed.
Skipping permits is risky. Unpermitted work can void your homeowner's insurance, create problems when selling the home, and — most critically — leave you with products installed in ways that may not actually protect you in a storm. At Orlando T Group, we pull all required permits before any work begins.
How to Verify a Product Is Code-Compliant
- Ask for the Florida Product Approval (FPA) number — you can verify it at floridabuilding.org
- For Miami-Dade and Broward County installations, confirm the product has a current Miami-Dade NOA
- Verify that the product's design pressure rating matches or exceeds your home's location requirements
- Check that the NOA or FPA approval covers the specific size and configuration being installed
Why Contractor Licensing Matters
In Florida, impact window and door installation must be performed by a licensed contractor — specifically, someone holding a Florida Class A or Class B Aluminum Contractor license or a General Contractor license. Licensing ensures the contractor has demonstrated knowledge of Florida's building code, impact product installation requirements, and proper permitting procedures.
Beware of any contractor who offers to skip the permit or installs products without pulling one. Not only is it illegal — it exposes you to significant financial and legal risk as the homeowner.
Orlando T Group is fully licensed and insured in Florida. We handle all permits and inspections, and every product we install carries the appropriate Florida Building Code approvals and Miami-Dade NOA certifications. Questions? Call 954-625-5318.