Page Intro

Glass Technology

Ply Gem Low-E glass does more than just lower energy bills. It delivers comfort, creates less condensation and protects valuables from sun damage far better than conventional clear glass. Plus, it meets specific solar and energy control needs for different climates and geographic regions nationwide.


Low E glass contains a nearly invisible low-emissivity coating and argon gas that dramatically improve thermal efficiency (R or U Value) while reducing your home’s unwanted solar heat gain. It also blocks damaging UV rays, reducing the fading of furniture, flooring, and window coverings.



the amount of heat retained by a window; the higher the number, the better the glass


Solar Heat Gain Coefficient:

the amount of solar radiation entering a house and registering as heat gain; the lower the number, the less heat gained

Ultraviolet Transmission:

the total ultraviolet rays entering through a window, generally responsible for fading; the lower the number, the better the glass

Visible Light Transmission:

how much visible light enters through the glass; 100% = all light gets through, 0% = no light gets through



     Single Low E coating
     One argon filled air space

TG 1

     Single Low E coating
     Two argon filled air spaces

TG 2

     Double Low E coating
     Two argon filled air spaces



ECO GAIN 180 High Solar Gain Glass

When the weather turns frigid, Eco Gain 180 is the perfect cold remedy! Eco Gain 180 provides excellent insulating capability by blocking heat loss to the outside and reflecting heat back into the room. It is the ideal glass for passive solar applications as it allows the winter sun’s heat to pass into the home and provide “free heat.” It also blocks 76% of the sun’s harmful UV rays.

ECO SHIELD 270 Solar Control Glass

When it comes to solar control, the sun does not stand a chance against Eco Shield 270. It is the perfect glass for fighting the heat. Eco Shield 270 reduces solar heat gain by 50% or more compared to ordinary glass in the summer and keeps homes cozy by blocking heat loss in the winter. It blocks 86% of the sun’s UV rays yet lets light stream in due to its exceptional clarity without a heavy bronze or smokecolored tint to spoil the image.

ECO MAX SHIELD 366 Ultimate Performance Glass

Eco Max Shield 366 has been specially formulated to reject the summer sun’s heat without affecting the view. It lets more light in and keeps more heat out so homes stay cool and comfortable – with no room-darkening tints and virtually no exterior reflectance. The ultimate in solar control and clarity! Eco Max Shield 366 provides the highest levels of year-round comfort and energy savings, making it the perfect glass no matter where you live. It sports an unprecedented three layers of silver which reduce solar gain, reflect furnace heat back into the room and let light stream in.

ECO TINT 240 Glare Control Glass

Eco Tint 240 is a specially treated version of Low E glass that provides effective glare control and maximum solar heat blockage – without creating discomfort near the glass inside, or the visual nuisance of highly reflective glass outside. It also maintains year-round comfort, blocking oppressive solar heat gain and maintaining cool glass temperatures in summer, as well as warm inside glass temperatures in winter.



For windows that clean easier and stay clean longer

A thin, invisible titanium dioxide coating harnesses the power of the sun’s UV rays to loosen dirt so water can rinse it away, leaving windows virtually spotless. Durable silicone dioxide treatment makes glass smoother as it ages so water disperses evenly, sheets off and evaporates quickly, greatly reducing water spotting. Please note, Neat is only available with Eco Shield 270 and Eco Max Shield 366.



Protects glass in transit and on the job site

A clear factory-applied protective film attached on both inner and outer surfaces, ensuring glass surface is protected from damage, scratches, paint, and mud. Peels off in one smooth easy motion, taking all the accumulated dirt and labels with it, revealing spotless and undamaged glass.



Obscure textured or coloured glass ensures privacy while still allowing light to penetrate in bathrooms and other rooms requiring privacy.It also adds interest and decorative effect. Tinted glass provides a combination of energy savings and glare control.





1/2" Reeded

Satin Etch