Glass options

Nobody takes energy efficiency more seriously than Andersen. That’s why we offer multiple high-performance glass options that make it possible to get Andersen® windows and patio doors that are ENERGY STAR® certified, no matter where you live in the country.

Choosing The Right Glass

Most people can enjoy optimal energy performance and comfort with our standard Low-E/Low-E4® glass offerings. Low-E ('low-emissive') glass reflects heat in the summer and helps keep heat inside in the winter, making this a good choice in climates where both heating and cooling costs are a concern.

Additional glass performance options include SmartSun™ glass that blocks 95% of the sun’s harmful UV rays and PassiveSun™ glass that brings the heat from sunlight into your home. Check with your Andersen dealer for glass options that make Andersen products ENERGY STAR® certified in your area.

Glass Performance Options

*Tint of glass is for illustration purposes only and is not representative of the actual product.
Low E4 glass option

Low-E / Low-E4® Glass

Most people can enjoy optimal energy performance and comfort with Low-E/Low-E4® glass. Low-E glass reflects heat in the summer and helps keep heat inside in the winter, making this a good choice in climates where both heating and cooling costs are a concern.

Ideal for: All Climates

Available on: Low-E glass is available on all Andersen products.

SmartSun glass option

SmartSun™ Glass

SmartSun™ glass gives you the benefits of Low-E glass, plus it helps shield your home from the sun’s heat and filters out 95% of harmful UV rays while letting sunlight shine through.

Ideal for: All Climates

Available on: SmartSun™ glass is available on all Andersen® products.

Sun Glass option

Sun Glass

Sun glass offers outstanding thermal performance with a subtle tint that blocks out even more heat from the sun.  

Ideal for: Southern Climates

Available on: E-Series, A-Series, 400 Series, 200 Series and 100 Series products.

Passive Sun glass option

PassiveSun® Glass

If you live in a cold climate, PassiveSun® glass allows the sun to heat your home.

Ideal for: Northern Climates

Available on: PassiveSun® glass is available on all Andersen® products.

Energy performance details

SmartSun™

U-factor

How well a product prevents heat from escaping.

four orange stars, three solid and one outlined

Solar heat gain coefficient

How well a product blocks heat caused by sunlight.

four orange stars in a row

Visible light transmittance

How much visible light comes through a product.

four orange stars, two and a half stars solid and one and a half outlined

UV protection

How well a product blocks ultraviolet rays.

four orange stars in a row

SmartSun with HeatLock™ Coating

U-factor

How well a product prevents heat from escaping.

four orange stars, three and half stars solid and half outline

Solar heat gain coefficient

How well a product blocks heat caused by sunlight.

four orange stars in a row

Visible light transmittance

How much visible light comes through a product.

four orange stars, two and a half stars solid and one and a half outlined

UV protection

How well a product blocks ultraviolet rays.

four orange stars in a row

Low-E4®/Low-E

U-factor

How well a product prevents heat from escaping.

four orange stars, three solid and one outlined

Solar heat gain coefficient

How well a product blocks heat caused by sunlight.

four orange stars, three solid and one outlined

Visible light transmittance

How much visible light comes through a product.

four orange stars, three solid and one outlined

UV protection

How well a product blocks ultraviolet rays.

four orange stars, three solid and one outlined

Low-E4 with HeatLock™ Coating

U-factor

How well a product prevents heat from escaping.

four orange stars, three and half stars solid and half outline

Solar heat gain coefficient

How well a product blocks heat caused by sunlight.

four orange stars, three solid and one outlined

Visible light transmittance

How much visible light comes through a product.

four orange stars, three solid and one outlined

UV protection

How well a product blocks ultraviolet rays.

four orange stars, three solid and one outlined

Sun

U-factor

How well a product prevents heat from escaping.

four orange stars, three solid and one outlined

Solar heat gain coefficient

How well a product blocks heat caused by sunlight.

four orange stars in a row

Visible light transmittance

How much visible light comes through a product.

four orange stars, three outlines and one solid star

UV protection

How well a product blocks ultraviolet rays.

four orange stars, three solid and one outlined

PassiveSun®

U-factor

How well a product prevents heat from escaping.

four orange stars, three solid and one outlined

Solar heat gain coefficient

How well a product blocks heat caused by sunlight.

four orange stars, three outlines and one solid star

Visible light transmittance

How much visible light comes through a product.

four orange stars, three and half stars solid and half outline

UV protection

How well a product blocks ultraviolet rays.

four orange stars, two solid and two outlined

PassiveSun with Heatlock® Coating

U-factor

How well a product prevents heat from escaping.

four orange stars, three and half stars solid and half outline

Solar heat gain coefficient

How well a product blocks heat caused by sunlight.

four orange stars, three outlines and one solid star

Visible light transmittance

How much visible light comes through a product.

four orange stars, three and half stars solid and half outline

UV protection

How well a product blocks ultraviolet rays.

four orange stars, two solid and two outlined

Triple-Pane (with Low-E coatings on two surfaces)

U-factor

How well a product prevents heat from escaping.

four orange stars in a row

Solar heat gain coefficient

How well a product blocks heat caused by sunlight.

four orange stars, three solid and one outlined

Visible light transmittance

How much visible light comes through a product.

four orange stars, two and a half stars solid and one and a half outlined

UV protection

How well a product blocks ultraviolet rays.

four orange stars, three and half stars solid and half outline

Clear Dual-Pane

U-factor

How well a product prevents heat from escaping.

four orange stars, three outlines and one solid star

Solar heat gain coefficient

How well a product blocks heat caused by sunlight.

four orange outlined stars

Visible light transmittance

How much visible light comes through a product.

four orange stars in a row

UV protection

How well a product blocks ultraviolet rays.

four orange outlined stars

 

Center of glass performance only. Ratings based on glass options available as of June 2021.

 

View ENERGY STAR® map

Additional Options

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