HVHZ product approval: what Miami-Dade and Broward require

What is HVHZ product approval, and do I need it for solar in Miami?

Miami-Dade and Broward are the Florida Building Code’s High-Velocity Hurricane Zone, and every component that attaches your array to the roof must carry product approval for that zone — the racking, the clamps, the flashing and the fasteners, each individually. Two credentials satisfy it: a Florida Product Approval carrying HVHZ certification, which is accepted in all 67 counties, or a Miami-Dade Notice of Acceptance, which is a local approval. The test standards behind them are the same, so you need one, not both.

Counties in the HVHZ
Miami-Dade and Broward only
Florida Building Commission
Approval attaches to
Individual products, not the system
Miami-Dade County and Florida Building Commission
Florida Product Approval with HVHZ
Accepted in all 67 counties
Miami-Dade County and Florida Building Commission
Miami-Dade NOA
Local approval, same test standards
Miami-Dade County and Florida Building Commission

Last verified August 16, 2026

Why this exists

A rooftop array is a set of surfaces held down by a handful of attachment points, in a place that sees design wind speeds higher than almost anywhere else in the United States. The High-Velocity Hurricane Zone is the Building Code’s response: rather than let each permit reviewer judge each product, the state and the county pre-test products and publish what passed.

For you as a homeowner that is a good arrangement. It means the attachment method on your roof has been tested to a hurricane standard by someone other than the company selling it to you.

The two credentials, and which to ask for

HVHZ product approval routes
Florida Product Approval (HVHZ)Miami-Dade Notice of Acceptance
Where acceptedAll 67 Florida countiesLocal approval
Test standardsThe sameThe same
Issued byFlorida Building CommissionMiami-Dade County product control
Do you need both?No — one is enoughNo — one is enough

Installers sometimes present a Miami-Dade NOA as the stronger credential because the name is more recognisable and the county’s testing reputation is deserved. In coverage terms it is the narrower of the two. Neither is a problem; what matters is that the products on your roof hold one of them.

What to ask an installer

  • Which approval number covers the racking, and is it a Florida Product Approval with HVHZ certification or a Miami-Dade NOA?
  • Are the clamps, flashings and fasteners covered by that same approval, or separate ones?
  • Who is producing the engineering for the attachment layout, and is it signed and sealed for this address?
  • How many permits have you pulled in this municipality in the past year? Product approval is statewide, but permitting practice is not.

Common questions

Does an approval from another state count?

No. HVHZ approval is specific to the Florida Building Code’s high-velocity zone, and testing that satisfies another state’s wind provisions does not substitute for it.

Do the panels themselves need approval, or just the mounting?

Both matter, and the mounting is usually where a permit review focuses, because that is what transfers wind load into the structure. Ask about the whole assembly rather than assuming the module approval covers the attachment.

I am outside Miami-Dade and Broward. Does any of this apply?

The HVHZ itself is only those two counties, so the specific approval regime does not apply elsewhere. The rest of Florida still has wind-load requirements for the local design wind speed, and products still need Florida Product Approval — the HVHZ certification is the additional layer.

Can I check an approval myself?

Yes. Both the Florida Building Commission and Miami-Dade County publish searchable listings of approved products. An approval number your installer cannot produce, or that does not appear in the listing, is worth resolving before work begins rather than at inspection.

Sources

What each source supports on this page, and when we last verified it. Every source we use, with its freshness policy, is listed in the source register.

  1. HVHZ product approval — Miami-Dade Notice of Acceptance and Florida Product Approval

    Miami-Dade County and Florida Building Commission

    That rooftop PV components installed in the High-Velocity Hurricane Zone require product approval, that a Florida Product Approval carrying HVHZ certification is accepted statewide while a Miami-Dade Notice of Acceptance is a local approval, that the two use the same test standards so only one is needed, and that approval attaches to individual products rather than to a system as a whole.

    Verified August 18, 2026 · Corroborated from manufacturer approval listings and trade coverage rather than read from the county product-control database, which is not reachable from the authoring environment. The mechanism is stable; a specific product’s approval status must always be checked against the live listing and never inferred.

  2. Florida Building Code — high-velocity hurricane zone and wind-borne debris provisions

    Florida Building Commission

    Wind-load and permitting requirements applying to rooftop solar installations in Florida, including the High-Velocity Hurricane Zone in Miami-Dade and Broward counties.

    Verified August 16, 2026