Low-E and 4th Surface Units

Advanced Efficiency: Low-E and 4th Surface Insulated Glass Units

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Years of service

Experience revolutionary energy efficiency and indoor comfort with Nobel Glass's Low-E and 4th Surface insulated glass units

By applying advanced low-emissivity (Low-E) coatings on multiple surfaces, including the often-overlooked #4 surface (innermost pane), these double-glazed IGUs achieve thermal performance comparable to, or even surpassing, traditional triple-pane units. This technology significantly reduces heat transfer, lowers energy consumption, and protects interiors from UV damage, making it an ideal choice for optimal climate control

Key Features & Benefits:

Superior Thermal Performance

Low-E coatings on the #2 and #4 surfaces significantly reduce the center-of-glass U-Factor, achieving up to 12% better thermal performance than clear glass triple-pane units

Enhanced Insulation

The coating on the #4 surface reflects infrared heat (room heat) back inside, reducing radiant heat loss during cold weather and improving overall insulation.10

Optimized Solar Heat Gain

While primarily enhancing insulation, specific Low-E technologies can allow beneficial passive solar heat gain, ideal for colder climates, balancing warmth and light.

UV Protection

Low-E coatings contribute to blocking harmful UV rays, protecting interior furnishings and finishes from fading and degradation.

Durability & Longevity

Pyrolytic (hard-coat) Low-E glass, often used in these units, is highly durable, scratch-resistant, and has an unlimited shelf life, ensuring long-term performance without deterioration.

Applications

New construction and renovations of residential or commercial buildings, particularly in climates where high solar heat gain is beneficial or where superior thermal control is desired.

Why Choose Nobel Glass

Nobel Glass provides cutting-edge Low-E and 4th Surface technology, offering double-glazed units that deliver exceptional energy efficiency and comfort, without the added material and installation complexities of triple-pane systems.

Our Insulated Glass Projects

Over the years we here at Nobel Glass have made our own contribution to the changing face of architecture. Here are a few projects we are proud to have been a part of

Get Quick Our Services in 4 Easy Steps

Make an Appointment

To arrange a time and date for a free quote, give us a call at (877) 781-2787.

Get an Estimate

A sales engineer will assess your needs, discuss options, and address all your project requirements during your consultation. You’ll then receive a detailed quote for your review.

Ink a Contract

After you approve the estimate and sign a contract, we’ll handle the ordering and scheduling of your project.

Project is Completed

Your Satisfaction Matters: After completing your project, we’ll conduct a final walkthrough to ensure you’re delighted with the results. Your feedback is important to us!

Trusted by Our Customers

"Nobel Glass exceeded our expectations with their prompt, professional commercial door repair service. Reliable, efficient, and highly skilled—truly a company we trust!"

Sarah Mitchell Property Manager

"The Team provided excellent window installation and replacement service. Professional, efficient, high-quality work—our building looks amazing!"

Mark Reynolds Maintenance Director

"NG delivered top-notch commercial garage and gate service—fast, professional, and highly reliable. Their expertise and efficiency exceeded our expectations. Highly recommended!

Daniel Roberts Facility Operations Manager

"They provided exceptional sliding glass door services—quick, professional, and high-quality work. Our doors operate smoothly again! Highly recommend their expertise.

Amanda Lewis Property Manager

"Nobel Glass installed our glass pool fence and windscreen flawlessly. Professional, efficient, and high-quality workmanship. The results look stunning! Highly recommended.

Jason Miller Resort Facilities Manager

We really appreciate it if You could let us know about your experience with Nobel Glass

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Maximize Your Efficiency. Learn About 4th Surface Technology.

Our customer care team is ready to assist you. They’ll ask key questions to understand your sliding glass door needs and schedule a convenient service. Our top priority is keeping your business secure and operational with fast, reliable service. We specialize in commercial door installation, repair, maintenance, and more to ensure smooth access and security. Call now for expert door solutions!

Committed to Excellence Since 1989 - Call Us Today : (877) 781-2787

Committed to Excellence Since 1989 - Call Us Today : (877) 781-2787