Dade and Broward Counties are in what is classified as High-Velocity- Hurricane-Zones (HVHZ). This zone is rated as 150 mph plus winds and is the highest rating in Florida. A new testing approval process was established for building products and materials used in this zone. These products must have a Dade County Product Approval to be used on any structure built in the Miami-Dade area. This Miami-Dade certification is the highest standard designed to protect structures from any wind-borne debris that would result from the onset of hurricane force winds.
Once roofing products, materials and methods have been approved through this testing process, they receive a certification rating and a NOA (Notice Of Acceptance) is issued. Products with Florida Product Approval may be used throughout Florida with the exception of the Dade and Broward Counties. These Counties require an NOA for any roofing product and system to be used within their zone. The same roofing products, and systems listed that require a Florida Product Approval as specified by Rule 9B-72 must have the additional testing and receive an NOA to be used in Dade and Broward Counties as well as any other municipality that chooses to adopt these more strict code requirements.
Though Florida, as a whole, does not require a NOA on the building products they approve, local building codes can be amended to require the certification and issuance of an NOA for their own building standards. Dade County Product Approval and their NOA's have caught the eye of the insurance companies. Check with your insurance agent to determine if there are any products they require to have an NOA for you to be able to use. An example of this would be the replacement of skylights. Don't lose your insurance coverage just because you preferred a different and cheaper skylight.