Insights > Category > Posted: 2025-Mar-21, Updated: 2025-Mar-31

Energy Star Labels
INFOGRAPHIC

Intro image for infographic about reading energy ratings
In Canada, energy-efficient windows begin with ENERGY STAR certification. These certified windows meet or exceed high-efficiency standards, ranking in the top 15 to 30 percent for energy performance in their class. Every ENERGY STAR-certified product comes with a temporary label, packed with ratings that help both suppliers and consumers understand what they’re purchasing or installing.

However, for the average consumer, these labels can be overwhelming. Our infographic cuts through the clutter, offering simple definitions and insights to help you easily interpret these energy ratings.

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What are Canadian Energy Climate Star zones?

Map of the single Energy Star Canadian climate zone

What are window ratings

How to read window ratings i Canada

Balancing energy costs and comfort level

Balancing act - keeping your energy costs down and comfort level up

What is a U-factor (U-value)?

The lower the U-value, the better the window is at keeping heat inside during winter and preventing heat from entering during summer.

What are Energy Star energy ratings?

The higher the ER number, the more energy-efficient the window is.

What is the Solar Heat Gain Coefficient?

Performance Rating Solar Heat Gain (SHGC) - larger number means more heat gain.

Are some windows styles more energy-efficient than others?

 Comparative energy efficiency ratings of various window styles, including picture, casement, awning, and slider windows, highlighting their insulation performance.

What is an R-value? Where is it used?

Multi-glaze R-value comparisons to a solid wall

Window condensation can happen any time of the year

From humid summers to chilly winters, condensation can form on your windows any time of the year.

Need more information?

If you would like to know more about ENERGY STAR window and door products, come visit our showroom, give us a call, or request more information via our contact form - we’d love to her from you.

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