High Performance Glass for Extreme Weather

Demanding Climates Like the Northeast Call For Superior Glass

Low E Glass

climate

Performance criteria for windows and skylights are based on ratings certified by the National Fenestration Rating Council (NFRC), and vary for each of the climate zones shown in the map above. To find the climate in which you are located, search here.

E III

Elevated level of solar heat control developed specifically for Northern regions
High visibility and light allowance without allowing harmful UV rays to pass through
Low reflective levels allow for clear views at all times of the day
Low-E coating protects your home from outside temperatures in every season

low-emissivity coated glass – surface 3

Argon gas – between the panes

Glazing Brochure

Energy Star III

ES4 Version 7

Thermal insulation blocks solar rays, saving on energy costs year-round
Exceptional Visible Light Transmission (VLT) at 77% for abundant daylighting
Low reflective levels allow for clear indoor views at all times of the day
Low-E coating blocks outside temperatures and helps control indoor temps

low-emissivity coated glass – surface 2

low-emissivity coated glass – surface 4

Argon gas – between the panes

Glazing Brochure

DOE – R5

Our patented glazing system provides superior insulation from heat loss, returning an average annual savings of up to 40% on energy bills.*

*Based on exterior replacement utilizing 16 windows. Savings are average and may vary according to home type and location.

low-emissivity coated glass – surface 2

low-emissivity coated glass – surface 4

Argon gas – between the panes

Available in SELECTED WINDOW STYLES ONLY

More Information

DOE R-5 Cutaway

Clear Insulated Glass

Double-paned glass with an argon gas fill significantly increases energy efficiency
Ideal for low-cost applications like garages and stand-alone sheds

Glazing Brochure

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