Cardinal Insulated Glass

Neighbors Windows & Doors is the Alaska distributor for Cardinal Insulated Glass. Produced at the Cardinal Insulated Glass plant in Hood River, Oregon these insulated glass units are the most reliable, technologically advanced, and highest performing insulated glass units available.

Cardinal Glass Industries is considered one of the world’s leading providers of superior quality glass products. From the melting of sand to produce clear float glass to the vacuum sputtering of silver to produce low-emissivity coatings, Cardinal manufactures the quality components and finished insulating glass products used in top-of-the-line residential windows and doors around the world.

Space Age Manufacturing

Cardinal Insulated Glass leads the glass production industry by maintaining the highest quality standards and through the development of industry-leading processes that meet or exceed customers’ glass specifications. Cardinal’s signature seal for quality is their Intelligent Quality Assurance Program.

Every piece of glass is checked from start to finish. These inspections rely on calibrated scientific instrumentation. Therefore, results are objective, not subject to human interpretation. Certainly, this assures their plant-to-plant uniformity and consistency. What’s more their research and development department continues pushing the envelope on glass technology by bringing new benefits, manufacturing processes, coating and inspection systems.

Cardinal’s Intelligent Quality Assurance Program is your assurance that Cardinal Insulated Glass will always fulfill or exceed expectations. From float glass to insulating glass units, custom tempering and lamination or any of our energy-saving LoĒ™ coatings, quality is fundamental.


A lot of manufacturers talk about performance, i.e., U-Factors and SHGCs. But what about durability? Performance over the long haul?

That’s where Endur IG™ excels. Endur IG continues the Cardinal Insulated Glass tradition of long-term performance. It delivers the industry’s lowest failure rate, the only comprehensive 20-year factory warranty plus outstanding thermal performance and solar control.

Exceptional longevity and performance … that’s how we help protect your brand and your reputation. New Endur IG, what the future of insulating glass looks like.

With over 500,000,000 IG units under warranty, Cardinal Insulated Glass knows a thing or two about building long-lasting IG units. Their units have proven themselves over and over in the field and in the lab.


For years, Cardinal LoE glass has been setting the standard for energy-efficient glass. Their patented, state-of-the-art sputtered coatings are unmatched by any other glass manufacturer. Their high transmission coatings are virtually clear, blocking the heat and reducing solar gain, while optimizing light transmission.

LoE Coating Terminology:
LoE-272 Equals two layers of silver, 72% light transmission for a double-pane IG unit
LoE-i89 Equals Indium Tin Oxide coating with monolithic transmission of 89%

LoE180_icon HIGH SOLAR GAIN GLASS [One silver layer]

Cardinal LoE-180 is the perfect cold remedy. Ideal for passive solar applications, it allows winter sun’s heat to pass into the home while blocking heat loss to the outside.


Where additional solar control is required, with very little sacrifice in visibility, LoE2-270 is the ideal choice. Its patented coating blocks 86% of the sun’s infrared heat and 86% of the sun’s harmful UV rays.


The new standard, LoE3-366 delivers the perfect balance of solar control and high visibility – with no room darkening tints and virtually no exterior reflectance. It provides the highest levels of year-round comfort and energy savings, making it the perfect glass for any location. The secret? An unprecedented three layers of silver.

LoE340_icon LOW SOLAR GAIN GLASS [Three silver layers]

LoE3-340 provides an industry-leading Solar Heat Gain Coefficient (SHGC) of 0.18 in a double-pane unit without the use of tinted glass. There’s no need to sacrifice significant visible light transmission with a Light to Solar Gain (LSG) ratio of 2.17.