Miami-Dade NOA and TDI Listing Explained
Miami-Dade NOA (Notice of Acceptance)
Florida has some of the most stringent building codes and standards in the country. This is because some areas of Florida, including Miami-Dade & Broward Counties, are designated as High Velocity Hurricane Zone (HVHZ) areas. These areas require more stringent product testing to handle the harsh weather associated with high winds and hurricanes.
Impact and cycle testing (also known as “hurricane testing”) requires large missile impact testing. This process uses a 9-pound 2’X4’ fired at 34 mph at the skylight. The skylight cannot allow the 2’x4’ section of wood to pass through it. Even a too-large crack in the skylight glass can risk failing the test! In addition to multiple missile impact tests, the skylight is subjected to a uniform static air pressure test along with a water pressure test to ensure no leaks occur from wind-driven rains.
A cyclic wind pressure test is conducted to ensure a skylight can handle the positive and negative pressure changes during a hurricane. Operable skylights must pass additional standards – ASTM F588 and AAMA 1302.5. After all this, every piece of the product, including fasteners, is evaluated by an engineer to ensure structural integrity. Once testing is complete and the product passes everything, a licensed Florida engineer must finally approve all testing and test results. Only then is the skylight able to be considered for listing with Florida. To receive a Miami-Dade NOA consideration, additional steps are needed.
Texas Department of Insurance (TDI) Listing
Texas has endured extensive damage from hurricanes over the years. As a result, the TDI was established in 1999 to guide builders and architects on which products and practices need to be implemented during construction. To receive a TDI listing, a skylight must endure structural testing to determine maximum design pressure. It must also pass an impact and debris resistance test similar to the Miami-Dade impact test.
A system assembly test is conducted to account for each specific material used in manufacturing. As a final requirement, all skylights must have a permanent label with the manufacturer, model, design pressure rating, and whether it is impact-resistant. Once the results of these tests are submitted, reviewed, and approved, a product will achieve a TDI listing- which could allow its use consideration in hurricane-prone areas of Texas.
Some VELUX Impact-Resistant Residential Polycarbonate Skylights are Miami-Dade Approved and TDI Listed
After rigorous testing and detailed review, VELUX is excited to achieve a Miami-Dade NOA and a TDI Listing for our residential polycarbonate skylights. These listings mean that architects, home builders, and remodelers can now consider using VELUX skylights across Florida and Texas. Even though these skylights have achieved these stringent ratings, local project design criteria must be met. These local criteria include design pressure, cycle pressure, and missile impact rating.
These products have also received an NFRC certification, Florida Product Approval, and WDMA Hallmark. Reach out to a local VELUX sales representative. Not sure who that is? Contact Customer Service team. They will be able to provide the name and contact information.
Building codes and regulations do vary across Florida and Texas. It is highly recommended to consult with all applicable building codes before beginning any construction or specification.
VELUX Impact-Resistant Residential Polycarbonate Skylights
VELUX polycarbonate skylights are beautiful additions to any Florida or Texas home. They provide homes with abundant natural light, while reducing the sun’s glare. Rising energy costs and a focus on wellness real estate have created a strong desire for residential skylights. According to a 2025 AIA survey, 34% of respondents want more natural light in their homes, and 25% want more natural light in their bathrooms.
Natural light has also been shown to improve sleep and reduce anxiety. Focus and productivity have also been shown to improve when abundant natural light is available. Skylights address multiple homeowners' needs. Not only do they boost the aesthetic value of the interior and exterior, but they have an impact on energy usage and overall wellness for homeowners.
VELUX is Ready to Assist with Choosing Skylights to Meet any Code Compliance
Some areas of the country require skylights to meet strict compliance requirements. For some, navigating these codes and regulations and then submitting everything correctly can be a bit tricky. VELUX can help. We have online resources to help ensure compliance, such as product specifications, testing certifications, BIM objects, and more.
For those builders, remodelers, and roofers looking for skylight installation assistance, comprehensive videos are available on our Pro website. More videos are available on our YouTube channel. VELUX also offers hands-on skylight installation training at the Pro Partner Academies in select areas. In-classroom and on-the-job training are both available.
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