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The Most Energy Efficient Glass for Canadian Windows


Oct 16, 2020

When it comes to energy efficient windows, the type of glass you choose is a critical consideration. Due to the fact that the largest exposure of a window is the glass unit, it is estimated that this is where 90% of window heat loss occurs. Savvy consumers can access a ton of information at their fingertips but when researching the various types of energy-efficient glass options, actually selecting the best options for a Canadian home can be difficult. We understand the dilemma for Canadian consumers, so in this post, we’ll focus on the most energy efficient glass option: LoĒ-180ESC™

What does Low-E (Low-Emissivity) coating mean?

Low-E coating is a microscopically thin, metallic film that reflects radiant heat back to its source. By using Low-E coating, it makes homes warmer in the winter months and cooler in the summer, while reducing heating and air conditioning costs. Low-E coated windows stop approximately 40% of ultraviolet penetration.

LoĒ-180ESC™ Glass for Canada

When the weather turns bitterly cold in Canada, LoĒ-180ESC™ glass is a warm welcome to any home. LoĒ-180ESC™ is an updated version of LoĒ-180 glass and is designed to help meet the 2020 performance requirements for Energy Star® Canada. With a glass U-Factor of just 0.26 and an SHGC of 0.71, LoĒ-180ESC™ is the ideal product for passive solar applications in Canada.

Energy Efficient Glass Made for Energy Star® 2020 Requirements in Canada

LoĒ-180ESC™ is the perfect glass to be both comfortable and compliant with the 2020 requirements for Energy Star® Canada.

On, January 1, 2020, Natural Resources Canada issued a new/updated set of Energy Star® guidelines to further improve energy efficiency:
• maximum U-Factor of 1.22 (W/m²·K) / 0.21 (BTU/hr·ft²·°F)
• or minimum Energy Rating (ER) of 34 for the window or door

To comply with the updated and expanded Energy Star® Canada guidelines, the LoĒ-180ESC™ coating was developed. It’s engineered to enable more windows and doors qualify with the new energy rating of 34. The LoĒ-180ESC™ is a 3rd surface coating for a dual pane unit which allows more energy from the sun to enter the home while allowing the low U-Factor to keep the heat in.

Blocks out the cold, lets in the light

LoĒ-180ESC™ delivers outstanding cold weather performance – its insulation value is excellent. In addition, it lets the winter sun’s heat pass into the home while at the same time blocks 75% of the sun’s harmful UV rays. While blocking out the cold and UV rays, it lets the daylight stream in and provides more light than standard low-e glass.

Unique Coating Stops Thermal Loss

The glass is coated with a microscopically thin, optically transparent layer of silver sandwiched between layers of anti-reflective metal oxide coatings. A protective coating is applied to ensure durability and long life. The coating is virtually invisible to the eye – it’s like looking through clear glass.

Window City offers a range of energy-efficient glass options for both replacement windows and new construction projects to learn more please click here

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The Most Energy Efficient Glass for Canadian Windows was last modified: August 13th, 2021 by Window City
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Window City is the largest window and door manufacturer in Canada, boasting an over 400,000 sq.ft facility. Our warranties are bested by none. By offering custom made vinyl windows for any home, we are able to meet your needs without sacrificing quality of product. Let's work together to make your house, your dream home.
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