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A world-leading glass provider for nearly any application. Advanced LoE coatings, durable insulating glass, tempering, lamination and more. 

LoE-366 Raises the Bar for Glass Performance

For decades, Cardinal has set the standard for energy efficient glass, Our LoE-366 coated glass lifts the performance threshold to a new level.

A Perfect Balance, With the triple-layer coating of LoE-366, you can truly have it all.

year-round comfort, substantial energy savings, unmatched visibility and aesthetics

Beats the Heat. Keeps the View.

When the temperature soars, ordinary window glass just can’t handle the heat. And tinted glass darkens the view.

Inside Glass and Outside Temperatures

The table below compares the room-side center of glass temperatures of different glass types against two winter conditions.

Inside glass temperatures

IG Type & Coating

Single Pane, Clear

Double Pane, Clear

Ordinary low-e, Clear

LoE-366, Clear (Air Fill)

LoE-366, Clear (Argon Fill)

-20°F Very Cold Outside






20°F Cold Outside






The superior insulating capability of LoE-366 is a key factor in the construction of comfortable windows for cold climates.

The dramatic comfort improvement from windows with warm glass surfaces also means the relative humidity of the indoor air can be controlled and maintained properly. Proper humidity levels improve comfort and promote a healthier living environment. 

LoE-366 is a clear coating that blocks even more solar gain, reflects heat, and lets the light stream in. It even outperforms the tinted glass often used in warm climates.

LoE-366 glass has been formulated to reject the sun’s heat without spoiling visibility. It lets more light in and keeps more heat out.

It Protects Building Interiors.

LoE-366 provides exceptional fading protection. It blocks 95% of the sun’s damaging ultraviolet rays, protecting your furniture, carpets, curtains and wallcoverings for years to come.

It’s the perfect cold remedy, too

During cold weather, the insulating effect of your windows has a direct impact on how your rooms feel.

The largest exposed surface of a window is the glass, and the temperature of the room-side of the glass directly affects the air temperature in the room. They better insulated the window glass, the warmer your room will be.

To maintain the best comfort during the winter, select a glass product that produces surface temperatures that stay above this point during the coldest outdoor conditions.



Tnemec is heavily invested in the development of innovative coatings designed to solve specific industry challenges, and has been for over 100 years. By focusing on performance testing and using top-of-line equipment, Tnemec ensures that every product offered is well-suited to exceed expectation in its intended exposure.

Using only high-quality binders, resins, pigments, and additives, Tnemec products are formulated to perform both in accelerated testing protocols and in the field. Tnemec tests and retests every product-following industry-recognized testing standards, like ASTM B117, ASTM D 4587, etc. – to qualify each coating’s ability to resist corrosion, UV light, abrasion and other causes of coating degradation.  


When choosing a coating system, there are many factors that are important to consider. However, sustainability in manufacturing and the environmental impact of a coating are increasingly being prioritized by consumers. 

Sustainability can be defined in a number of ways, and Tnemec is aligned with the definitions outlined in the U.S. National environmental Policy Act of 1969 (NEPA). According to NEPA, the goal of sustainability is to, “create and maintain conditions, under which humans and nature can exist in productive harmony, that permit fulfilling the social, economic, and other requirements of present and future generations.” With this as a guiding principle, Tnemec stands by the three pillars of sustainability- environmental, social, and economic- when reviewing our products and company policies for their sustainable attributes.


Combining the strength of steel with double or triple paned glass provides a high level of security without sacrificing your view. Designing and manufacturing beautiful, strong, and energy efficient steel doors is our specialty. 

Custom Tempered Glass for Safety

High quality safety glazing provides protection in areas of increased risk, with custom and large order options.

Quadrupled Strength

In the tempering process, glass is heated to approximately 1200°F (650°C) and the rapidly cooled with air. This locks the outer surface of the glass in compression which dramatically increases glass strength.

Fully tempered glass is four times stronger than a piece of annealed glass. When it breaks, it separates into small pieces as a break-safe pattern, reducing likelihood of injury.


EMPowered motorized Touchscreen SMART Keypad Deadbolt- Works with Yale Access App.

Premium Quality

Quality that you can see and feel is built into each and every Emtek product. It’s about form and function working in beautiful harmony. Emtek delivers the best performing hardware, always using quality materials. 

    • Create and manage unlimited entry codes with the smart lock
    • East to use, Works with Yale Access mobile app (Only available for use in the US and Canada)
    • Auto-Unlock(learn more) and DoorSense technology
    • Works with all three voice assistants
    • Compatible with leading smart home security systems and hosting platforms
    • 9V battery port to prevent lockouts
    • Tapered deadbolt latch to assist with latch engagement
    • Easy to install, fits standard tubular door prep