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Energy Performance Data

ENERGY STAR

®

– United State

s

ENERGY STAR is a government-

regulated program that was created by

the Environmental Protection Agency

(EPA), and the U.S. Department of

Energy (DOE), to help consumers

quickly and easily identify energy saving

products. The ENERGY STAR program

uses energy values obtained by window and door

manufacturers through the National Fenestration Rating

Council (NFRC) program. NFRC ratings are based on the

energy performance of the total window or door – both

glass and frame.

The ENERGY STAR program for the United States divides

the nation into four separate climate zones – Northern,

North-Central, South-Central, and Southern.

The performance criteria that needs to be met in order

to be ENERGY STAR compliant in a specific climate zone

(effective January 1, 2015) is shown in the charts provided.

Northern

Mostly Heating

North-Central

Heating & Cooling

South-Central

Heating & Cooling

Southern

Mostly Cooling

Northern

Mostly Heating

North-Central

Heating & Cooling

South-Central

Heating & Cooling

Southern

Mostly Cooling

Zone A

Southwestern Cana

British Columbia

Zone B

Southern Canada

Zone C

Central Canada

Zone D

Northern Canada

Northern

Mostly Heating

North-Central

Heating & Cooling

South-Central

Heating & Cooling

Southern

Mostly Cooling

2015 ENERGY STAR Qualification Criteria for Doors

Criteria shown applies to both sliding and hinged doors and in all four climate zones.

Glazing

U-Factor

SHGC

Opaque

< 0.17

No rating

< 1/2-Lite

< 0.25

< 0.25

> 1/2-Lite

< 0.30

Northern

North-Central

< 0.40

Southern

South-Central

< 0.25

2015 ENERGY STAR Qualification Criteria for Windows

**

Northern zone windows can meet prescriptive (1st row) or alternative energy

performance (2nd & 3rd row) criteria to qualify for ENERGY STAR.

Climate Zones - U.S.

U-Factor

SHGC

Northern**

< 0.30

Any

Northern**

= 0.31

> 0.35

Northern**

= 0.32

> 0.40

North-Central

< 0.30

< 0.40

South-Central

< 0.30

< 0.25

Southern

< 0.40

< 0.25

2016 ENERGY STAR Qualification Criteria for Windows

The effective date for the Northern Zone prescriptive and equivalent energy

performance criteria for windows is January 1, 2016. North-Central, South-Central,

and Southern criteria will continue to follow 2015 guidelines.

**

Northern zone windows can meet prescriptive (1st row) or alternative energy

performance (2nd, 3rd, and 4th rows) criteria to qualify for ENERGY STAR.

Climate Zones - U.S.

U-Factor

SHGC

Northern**

< 0.27

Any

Northern**

= 0.28

> 0.32

Northern**

= 0.29

> 0.37

Northern**

= 0.30

> 0.42

Energy Performance Terminology

}

U-Factor refers to a measure of heat transfer

through the window or door unit. A lower U-factor

means less heat escapes during winter weather,

thus reducing heating costs in cold climates.

}

R-Value refers to resistance to heat flow. A high

R-value indicates that a window or door has

good heat insulating properties.

}

Solar Heat Gain Coefficient (SHGC) is a measure

of how much solar energy is passing through the

unit’s glass. The lower a window or door unit’s

SHGC, the less solar heat is transmitted into a

room, thus allowing for lower cooling bills in hot

climates.

}

Visible Transmittance (VT) is a measure of the

portion of visible light that passes through a

window or door. The higher a window or door

unit’s VT Total, the more visible light is transmitted

into a room. This value is influenced by both the

glass selection and by the ratio of glazing and

frame area.

Kolbe demonstrates a commitment to providing accurate energy data by having

products independently simulated, tested, inspected and listed in the NFRC

certification program, and making that data available on our website and window

labels.

NOTE: Energy performance data and air, water, structural data is updated on a

continuous basis. For the most current information, visit

www.kolbe-kolbe.com

or

contact your local Kolbe dealer.

206 Kolbe Heritage Series