In Miami-Dade and Broward, the building envelope cannot be permitted on design intent alone. Every exterior glazing system, cladding system and exterior railing has to carry an approval that proves it was tested for the High-Velocity Hurricane Zone (HVHZ). Understanding how that approval works is the fastest way to avoid redesign at permit stage.
What is a Miami-Dade NOA?
A Notice of Acceptance (NOA) is a product approval issued by Miami-Dade County's Product Control Section. It confirms that a specific system, in specific sizes and configurations, passed the county's test protocols and can be installed in the HVHZ.
An NOA is not a generic certificate for a brand. It lists the exact components, glass make-ups, anchors, maximum sizes and design pressures that were tested. Anything outside those limits is outside the approval.
NOA vs. Florida Product Approval
Outside the HVHZ, Florida Product Approval (an FL number issued through the state) is the standard path. Inside the HVHZ, products need a Miami-Dade NOA or a Florida Product Approval that is specifically rated for HVHZ use.
Palm Beach County is outside the HVHZ, so Florida Product Approval is typically used there, with wind and impact requirements set by the project's design criteria.
Which tests sit behind an HVHZ approval?
HVHZ approvals are built on Florida's Testing Application Standards:
- TAS 201: large and small missile impact (the large missile is a 9 lb 2x4 fired at 50 ft per second)
- TAS 202: uniform static air pressure, structural performance and water resistance
- TAS 203: cyclic wind pressure, thousands of positive and negative pressure reversals after impact
How the NOA shapes your design
The approval decides more than you might expect: maximum glass sizes, mullion spacing, anchor types and edge distances, and the design pressure each configuration can take. Corner zones of tall buildings see the highest pressures, so a system that works mid-wall may not work at the corner.
That is why we check the approval against the elevations and the wind-load calculations before we price. If an opening is larger, or the pressure higher, than the approval allows, the system, the glass or the layout has to change, or a project-specific approval path has to be agreed with the building official early.
What gets submitted with the permit
A typical envelope submittal includes the NOA or product approval documents, shop drawings showing how the approved system is applied to the building, structural calculations signed and sealed by a Florida-licensed professional engineer, and anchor details. Inspectors then check that what is installed matches the approval and the drawings.
How Aluconium handles approvals
Our engineering team selects approved systems at the design-assist stage, maps each elevation against the approval limits, and prepares shop drawings and calculations with a Florida-licensed PE. That way the look the architect designed is the look that passes permit.
Frequently asked questions
How long is a Miami-Dade NOA valid?
NOAs carry an expiration date, commonly several years from issue, and are renewed by the manufacturer. We confirm the approval is current when the submittal is prepared.
Do glass railings need an NOA in Miami?
Exterior railings in the HVHZ use approved systems or project-specific engineering accepted by the building official. Interior railings follow the Florida Building Code guard requirements.
Code references are summarized for orientation. Final requirements are confirmed by the engineer of record and the building department for each project.