Today, one of the most critical aspects in building design and construction is energy efficiency. That’s where the NFRC standard comes in. It’s a system developed by the National Fenestration Rating Council, an independent organization, that sets technical criteria to measure the energy performance of windows, doors, and skylights.
For companies that work with advanced architectural solutions, complying with this standard means delivering products that not only look great, but also enhance energy performance, reduce utility costs, and increase indoor comfort. More importantly, clients are now actively seeking these certifications to reduce expenses, like cutting down on air conditioning bills, just to name one example.
What Exactly Is the NFRC Standard?
The NFRC certification system is voluntary, yet widely used in ENERGY STAR® programs, tax incentive qualifications, building codes, and LEED certifications. Thanks to clear and comparable labels, it provides insight into a product’s real-world energy performance using five key metrics:
- U-Factor: Measures how well the product prevents heat from escaping. The lower the number, the better the thermal insulation.
- Solar Heat Gain Coefficient (SHGC): Indicates how much solar heat passes through the glass. Lower values are ideal in warm climates to reduce thermal load.
- Visible Transmittance (VT): Shows how much natural daylight enters through the glass. Higher values mean better interior lighting with less artificial light needed.
- Air Leakage: Evaluates how much air passes through the system. Lower ratings mean tighter seals and better efficiency.
- Moisture Buildup: Rates how well a product resists internal moisture buildup, helping to prevent mold and extend the product’s lifespan.
How Are NFRC Products Certified?
NFRC-certified products go through a rigorous technical process, including:
- Testing at NFRC-accredited laboratories.
- Thermal simulations and physical testing to ensure accuracy.
- Review by independent certification agencies that validate compliance with the standard.
Once approved, products receive an official NFRC label, clearly displaying their energy ratings so that architects, contractors, and buyers can compare them easily and transparently.
Why Should You Look for NFRC-Certified Products?
Beyond being a requirement in many U.S. regulations, NFRC-labeled products offer benefits such as:
✅ Helping architects and engineers make informed decisions about thermal and daylight performance.
✅ Reducing energy consumption, especially in commercial and residential projects where efficiency is a top priority.
✅ Improving point scores in green building programs like LEED, WELL, and ENERGY STAR.
✅ Increasing the lifespan of windows, doors, and curtain wall systems by reducing risks related to condensation and air infiltration.
Where Can You Find Products That Meet NFRC Standards?
While this certification is voluntary, more and more top-tier manufacturers are integrating it into their product lines. Companies at the forefront of the industry recognize the value of aligning with these internationally respected standards.
At PRL Glass & Aluminum, we understand that every project demands the perfect balance of design, performance, and code compliance. That’s why many of our curtain wall systems, sliding doors, high-performance windows are developed in line with NFRC standards.
👉 Looking for NFRC-certified products or need a technical quote? Get in touch with us today and secure high-performance, visually stunning solutions — all backed by the highest international certifications.
