How AMJ Earned Our 2024 NFRC Certification: The Full On-Site Testing Process

We are pleased to announce that AMJ has reached a significant milestone: our Model 67 casement window successfully obtained NFRC product certification in 2024. Issued by the National Fenestration Rating Council (NFRC), this certification confirms that our windows meet the highest standards for energy efficiency and performance in the North American market. Today, we will provide a detailed account of the process behind this achievement and offer an exclusive behind-the-scenes look at the testing process.

What is NFRC certification, and why is it important?

NFRC (National Fenestration Rating Council) certification is the industry’s gold standard for verifying window performance. Unlike generic claims, all NFRC ratings are based on independent, third-party testing, ensuring complete accuracy.
For North American projects, this certification is non-negotiable:
• It meets mandatory building code requirements in most U.S. states and Canadian provinces.
• It guarantees consistent energy performance, helping reduce long-term utility costs.
• It provides full transparency on key metrics like U-Factor, SHGC, and air leakage.

How did AMJ’s 67 Casement Window earn its NFRC certification?

1. Lab Simulation & Testing

Our window samples were first evaluated by the SATI simulation lab and TATI test lab, with reports issued in March and April 2024. These tests measured critical performance metrics, including U-Factor, SHGC, visible transmittance (VT), condensation resistance (CR), and air leakage.
2. On-Site Verification
After laboratory evaluation, the AMJ team conducted on-site testing with Mr. Xiong and Director Duan to confirm actual performance.
• Our technicians set up specialized equipment to simulate varying temperatures and weather conditions.
• We monitored and recorded the window’s performance over the full test cycle, which takes about 1 hour per unit.

This photo captures our team conducting the on-site verification for our 67 Casement Window.

This video shows the full testing process, from equipment setup to final data collection.

What does the NFRC certificate confirm for AMJ’s 67 Casement Window?
Our official certificate (dated October 16, 2024) confirms that our 67 Casement Window meets all NFRC requirements, with:
• A valid certification period through April 16, 2029.
• A CPD product line number: AMJ-M-1.
• Compliance with the NFRC 102 test method and 2023 procedural standards.
How long does the NFRC certification process take?

From initial lab testing to final approval, the full process for our 67 Casement Window took several months. While lab evaluations were completed in early 2024, the full certification was issued in October 2024, valid through 2029.

What are the key NFRC ratings for our window?

The certification confirms our 67 Casement Window’s performance across the most important metrics:

• U-Factor: Measures heat loss (lower values mean better insulation for cold climates).
• SHGC (Solar Heat Gain Coefficient): Controls solar heat gain, helping reduce cooling costs in warm regions.
• Air Leakage: Minimizes drafts and air infiltration, boosting overall energy efficiency.

These ratings make our window suitable for both residential and commercial projects across the U.S. and Canada.

Is NFRC certification required for new construction?

Yes, most new construction and major renovation projects in the U.S. and Canada require NFRC-certified windows to meet energy codes. Choosing our NFRC-approved 67 Casement Window ensures full compliance, avoiding delays during inspections.
What AMJ’s NFRC certification means for you
For our North American partners, this certification delivers three key benefits:
1. Code Compliance: Our window meets the requirements for local building codes across the U.S. and Canada.
2. Verified Performance: Every unit is tested to the same standards used by leading architects and contractors.
3. Long-Term Value: Our NFRC-certified window helps reduce energy costs for years to come.

Or contact the AMJ team to discuss your project needs.

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