Understanding Loe Coating

---

ENERGY STAR version 5.0, issued by Natural Resources Canada (NrCan), went into effect on January 1, 2020. The improved energy efficiency requirements can be met with either a 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. 

 由加拿大自然资源部（NrCan）发布的 ENERGY STAR 5.0 版本于2020年1月1日生效。改进后的能效要求可以通过以下两种方式之一来满足：窗户或门的最大U值为1.22 (W/m²·K) / 0.21 (BTU/hr·ft²·°F) 或最低能效评级 (ER) 为34。  

Meeting this low U-Factor would require a triple pane insulating glass unit. A dual pane option can meet the minimum 34 Energy Rating, requiring the window to balance a high Solar Heat Gain Coefficient (SHGC) with a low U-Factor.  

要达到这个低U值，需要使用三层玻璃的隔热玻璃单元。双层玻璃选项可以满足最低34的能效评级 (ER)，这要求窗户在实现低U值的同时，平衡较高的太阳能热增益系数 (SHGC)。 

To match the updated and expanded ENERGY STAR Canada guidelines, the LoĒ–180ESC coating has been developed by some company. It’s engineered to help more windows and doors meet the new Energy Rating of 34 throughout Canada. LoĒ–180ESC is a 3rd surface coating for a dual pane unit which allows more energy from the sun to enter the home while the low U-Factor keeps the heat in.  

为了符合更新和扩展的加拿大 ENERGY STAR 指南，一些公司开发了 LoĒ–180ESC 涂层。该涂层旨在帮助更多窗户和门在整个加拿大达到新的34能效评级。LoĒ–180ESC 是一种用于双层玻璃单元的第三表面涂层，它允许更多太阳能进入家中，同时低 U 值保持热量不流失。

LoĒ-180ESC delivers outstanding cold weather performance – its insulation value is excellent with a low 0.26 U-Factor. And with an SHGC of 0.71, it lets the winter sun’s heat pass into the home. It also blocks 75 percent of the sun’s harmful UV rays. While blocking out the cold and UV rays, it lets the daylight stream in – more light than ordinary low-e glass.    

 LoĒ-180ESC 在寒冷天气中表现出色——其绝缘性能优异，U值低至0.26。它的太阳能热增益系数 (SHGC) 为0.71，可以让冬季阳光的热量进入家中。同时，它还能阻挡75%的有害紫外线。在阻挡寒冷和紫外线的同时，它还允许比普通低辐射玻璃更多的自然光进入室内。 

 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 assure durability and long life. The coating is virtually invisible to the eye – it’s just like looking through clear glass. 

 玻璃表面涂有一层微观上极薄、光学透明的银层，夹在抗反射金属氧化物涂层之间。为确保耐久性和使用寿命，还施加了一层保护涂层。这种涂层几乎肉眼看不见——就像透过清澈的玻璃看一样。