Why NOA Certification is Essential for Impact Windows in South Florida

Understanding NOA and Impact Window Approvals

When it comes to installing impact windows and doors in South Florida, understanding the concept of Notice of Acceptance (NOA) is crucial. This article aims to explain what an NOA is and how impact windows receive approval, ensuring they meet the stringent standards required for the region.

What is an NOA?

A Notice of Acceptance (NOA) is a document issued by the Miami-Dade County Product Control Section that certifies a building product complies with the Florida Building Code (FBC). The NOA serves as a formal acknowledgment that a product has been tested and meets the rigorous standards necessary to withstand severe weather conditions, particularly hurricanes.

Why is NOA Important for Impact Windows?

Impact windows are designed to protect buildings from the extreme forces of hurricanes, including high winds and flying debris. South Florida is prone to hurricanes, making it essential for any installed impact windows to adhere to the highest safety standards. An NOA ensures that the windows you install are not only durable but also reliable during a storm, providing peace of mind to homeowners and business owners.

The Approval Process for Impact Windows

The process of obtaining an NOA for impact windows involves several steps:

1. Product Development and Initial Testing:

• Manufacturers design impact windows using materials like laminated glass and reinforced frames.

• Initial tests are conducted to ensure the design can withstand impact and pressure.

2. Third-Party Testing:

• Independent laboratories, approved by the Miami-Dade County Product Control Section, conduct extensive testing on the windows. These tests include:

Wind Pressure Testing: Ensures the window can withstand high wind speeds.

Impact Resistance Testing: Assesses the window’s ability to resist penetration from flying debris.

Water Resistance Testing: Verifies the window’s ability to prevent water infiltration under severe weather conditions.

3. Submitting for NOA:

• Once the product passes these tests, the manufacturer submits detailed reports and documentation to the Miami-Dade County Product Control Section.

4. Review and Evaluation:

• The submitted documentation undergoes a thorough review by Miami-Dade officials. This includes verifying test results and ensuring compliance with the Florida Building Code.

• If the product meets all requirements, the NOA is issued.

5. Periodic Re-Evaluation:

• To maintain an NOA, manufacturers must periodically re-test their products and resubmit for evaluation, ensuring ongoing compliance with updated building codes.

Choosing NOA-Approved Impact Windows

When selecting impact windows for your home or business in South Florida, always look for products with a valid NOA. This certification ensures you are investing in windows that provide maximum protection against hurricanes. At National Glass & Construction, we offer a wide range of NOA-approved impact windows, ensuring safety and compliance with local building regulations.


Understanding what an NOA is and how impact windows receive approval is essential for anyone looking to enhance the safety of their property in hurricane-prone areas like South Florida. By choosing NOA-approved products, you can ensure that your windows will perform as expected during severe weather events, providing crucial protection for your home or business.

For more information or to explore our range of NOA-approved impact windows, contact National Glass & Construction today. Your safety and satisfaction are our top priorities.

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