Acadian Windows carries impact-rated window products built to meet the most demanding hurricane codes — and while HVHZ is a Florida-specific designation, New Orleans homes face comparable requirements that our windows are designed to handle.
If you’ve been researching storm-resistant windows, you’ve likely come across the term “High-Velocity Hurricane Zone.” Understanding what that label actually means — and whether it applies to your New Orleans home — is the first step toward making the right choice for your property.
What Is an HVHZ, and Does It Apply to New Orleans?
The High-Velocity Hurricane Zone (HVHZ) designation comes from the Florida Building Code and currently applies only to Miami-Dade and Broward counties in Florida. Products sold in those counties must pass some of the most rigorous impact and wind-load testing in the country — including Miami-Dade Notice of Acceptance (NOA) certification.
New Orleans operates under Louisiana’s state building code, which sets its own coastal wind-load standards for parishes along the Gulf. These requirements are serious and substantial in their own right, even without carrying the HVHZ label. Coastal parishes in Louisiana require windows that meet specific wind speed and impact resistance thresholds based on their proximity to the Gulf and their designated wind zone classification.
For homeowners in areas like Pensacola, Florida — where Acadian also installs — HVHZ-rated products may be applicable. If you’re purchasing for a home in New Orleans or surrounding Louisiana parishes, the relevant certification framework is Louisiana’s coastal building code, not the Florida HVHZ standard.
How Acadian’s Windows Are Tested for Hurricane Conditions
Acadian’s window lineup includes impact-rated options with aluminum frames and laminated glass systems that are tested to meet the wind codes governing coastal construction across Louisiana, Mississippi, Alabama, and Florida. Our impact glass uses a special silicone glazing process and an inner laminate layer that holds the pane together even when the outer surface is struck by debris.
These products are certified through AAMA testing protocols — the same industry standards that form the backbone of coastal code compliance across the Gulf South.
HVHZ vs. Louisiana Coastal Code: Key Differences
| Standard | Where It Applies | Governing Body | Key Requirement |
|---|---|---|---|
| HVHZ (High-Velocity Hurricane Zone) | Miami-Dade & Broward counties, FL | Florida Building Code | Miami-Dade NOA certification |
| Louisiana Coastal Wind Zone | Coastal Louisiana parishes | Louisiana State Uniform Construction Code | Parish-specific DP and impact ratings |
| AAMA Certification | Nationwide, including Gulf Coast | American Architectural Manufacturers Association | Structural performance, air and water infiltration |
Do You Still Need Hurricane Shutters If You Have Impact Windows?
This is one of the most common questions homeowners ask, and the answer depends on your situation. Impact windows can satisfy opening protection requirements under Louisiana’s coastal building code on their own. However, hurricane shutters offer a second line of defense that many Gulf Coast homeowners choose to keep in place — especially during the most severe storms.
There are also practical advantages to hurricane shutters beyond code compliance: some insurance carriers provide additional premium reductions when both impact windows and hurricane shutters are installed, and shutters add a physical barrier between your glass and direct debris contact during a major storm.
The Federal Alliance for Safe Homes breaks down the key information about both hurricane shutters and impact-resistant windows for homeowners weighing both options who want more information.
Acadian installs hurricane shutters in New Orleans alongside our full window product line, so you’re not forced to choose one or the other. Many of our customers opt for both, and our team can help you find a configuration that fits your home and your budget.
Talk to Acadian About the Right Solution for Your Home
Whether you’re weighing impact windows, hurricane shutters, or a combination of both, Acadian’s team serves homeowners across New Orleans and throughout our Gulf Coast service area. Call us today at (504) 667-9187 or fill out our contact form online to find out which certified products are the right fit for your address and local code requirements.
Frequently Asked Questions
Does my New Orleans home need HVHZ-certified windows?
No. The HVHZ designation is exclusive to Miami-Dade and Broward counties in Florida. New Orleans homes fall under Louisiana’s coastal building code, which has its own wind-load and impact requirements that Acadian’s windows are built to meet.
Can impact windows eliminate the need for Hurricane shutters in Louisiana?
In many cases, yes. Impact-rated windows can satisfy Louisiana’s opening protection requirements on their own. That said, adding hurricane shutters provides an extra layer of protection and may offer insurance benefits that make them worth the investment.
Does Acadian install both Hurricane shutters and impact windows?
Yes. Acadian carries both impact-rated windows and aluminum hurricane shutters, and many homeowners choose to install both for maximum storm protection.
What certifications should I look for in a Gulf Coast window?
Look for AAMA certification and confirmation that the window meets your parish’s specific wind-load requirements. For Florida properties in Miami-Dade or Broward, Miami-Dade NOA certification is required.
Are Hurricane shutters or impact windows better for older New Orleans homes?
Both can work well in older homes, though the right choice often depends on the structure of your existing window openings. Acadian’s installation team can assess your home and recommend the most effective and code-compliant solution.
