Superior energy efficiency performance
Energy efficient windows designed for lasting comfort, performance, and style.
Superior energy efficiency performance
Save even more than regular ENERGY STAR models
Saves money and reduces your carbon footprint
| Product | Minimum ER (unitless) |
|---|---|
| Windows and Doors | 34 |
OR
| Product | Maximum U-factor W/m²·K |
Maximum U-factor Btu/h·ft²·°F |
|---|---|---|
| Windows and Doors | 1.22 | 0.21 |
To be ENERGY STAR qualified, products must meet specific energy efficiency levels that have been set for three climate zones in Canada. The three climate zones were developed by using heating degree-days, a measure of annual average temperature. The efficiency levels indicate how well a window, door or skylight insulates against the cold and how well it uses the sun’s heat to supplement the heating system of a home or building. The Greater Vancouver area falls in Zone 1. For more information — open link
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