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-SeriesA-Series400 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

Additional Options

More details

entry doors info sheet thumbnail image

Entry doors info sheet

thumbnail image of the new glass options info sheet

Additional glass options info sheet

dad and son in bathroom drying off after bath

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