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SERVICES & RESOURCES

Window/Patio Door Performance
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Canada Rebates / Incentives
Learn about rebates and incentives offered in Canada.

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US Rebates / Incentives
Learn about rebates and incentives offered in the US.

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The Energy Star program was developed by the U.S Department of Energy and the U.S Environmental Protection Agency to help identify energy-efficient choices for your home. The Energy Star seal is only granted to products that demonstrate significant reduction in energy consumption in the home. All Window City windows and doors listed meet or exceed U.S and Canadian regulations to be considered Energy Star compliant.

Choose a window from one of the collections below to jump to its Thermal Performance Chart.

CLASSIC COLLECTION

WC-100 Casement
WC-125 Awning
WC-175 Fixed Casement (Fixed)
WC-200 Single Slider(Tilt-In)
WC-201 Single Hung (Tilt-In)
WC-250 Double Slider (Tilt-In)
WC-251 Double Hung (Tilt-In)
WC-325 Single Slider (Lift-Out)
WC/HC-350 Double Slider (Lift-Out)
WC-400 Casement
WC-425 Awning
WC-450 Picture Window (LP Fixed)
WC-475 Fixed Casement (HP Fixed)
WC-500 Sliding Glass Door

HERITAGE COLLECTION

HC-101 Casement
HC-126 Awning
HC-151 Picture Window (LP Fixed)
HC-176 Fixed Casement (HP Fixed)
HC-210 Single Slider (Tilt-In)
HC-211 Single Hung Pocket Sill (Tilt-In)
HC-212 Single Hung Slope Sill (Tilt-In)
HC-260 Double Slider (Tilt-In)
HC-261 Double Hung Pocket Sill
HC-262 Double Hung Slope Sill
HC-401 Casement
HC-426 Awning
HC-451 Picture Window (LP Fixed)
HC-476 Fixed Casement (HP Fixed)

 


 WC-100 Casement Energy Star Zones
Glazing Options



Canada USA

SHGC U-Vaue U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.45 0.28 1.59 31 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.41 0.28 1.59 29 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.37
0.29
1.65
25
A,B
N,NC
NO
               
Cardinal LoĒ²-272® Glass-Argon 0.26 0.26 1.48 22 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.24 0.26 1.48 21 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.22
0.27
1.53
19
A,B
N,NC,SC,S
YES
               
Laminated Cardinal LoĒ²-272® Glass-Argon 0.30 0.26 1.48 24 A,B N,NC,SC YES
Laminated Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.27 0.26 1.48 23 A,B N,NC,SC,S YES
Laminated Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.24
0.26
1.48
21
A,B
N,NC,SC,S
YES
               
Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.22 0.21 1.19 26 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.20 0.21 1.19 25 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.22 0.17 0.97 31 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Small Grills 0.20 0.18 1.02 29 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.22 0.19 1.08 30 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Small Grills 0.20 0.19 1.08 28 A,B,C,D N,NC,SC,S YES

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 WC-125 Awning Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.45 0.28 1.59 31 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.41 0.28 1.59 29 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.37
0.28
1.59
27
A,B
N,NC
NO
               
Cardinal LoĒ²-272® Glass-Argon 0.26 0.26 1.48 23 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.24 0.26 1.48 21 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.22
0.26
1.48
20
A,B
N,NC,SC,S YES
               
Laminated Cardinal LoĒ²-272® Glass-Argon 0.30 0.26 1.48 25 A,B N,NC,SC YES
Laminated Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.27 0.26 1.48 23 A,B N,NC,SC,S YES
Laminated Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.24
0.26
1.48
21
A,B
N,NC,SC,S
YES
               
Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.22 0.20 1.14 26 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.20 0.21 1.19 25 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.22 0.17 0.97 31 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.20 0.17 0.97 30 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.22 0.19 1.08 29 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.20 0.19 1.08 28 A,B,C,D N,NC,SC,S YES

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 WC-175 Fixed Casement (HP Fixed) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.54 0.29 1.65 35 A,B,C,D N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.49 0.29 1.65 32 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.43
0.30
1.70
27
A,B
N
NO
               
Cardinal LoĒ²-272® Glass-Argon 0.32 0.26 1.48 26 A,B N,NC NO
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.28 0.26 1.48 24 A,B N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Grills
0.25
0.27
1.53
21
A,B
N,NC,SC,S
YES
               
Laminated Cardinal LoĒ²-272® Glass-Argon 0.36 0.26 1.48 28 A,B N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.32 0.26 1.48 26 A,B N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Grills
0.29
0.26
1.48
24
A,B
N,NC,SC
YES
               
Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.31 0.20 1.14 33 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.28 0.21 1.19 30 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.27 0.16 0.91 36 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.24 0.16 0.91 34 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.27 0.18 1.02 33 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.24 0.18 1.02 31 A,B,C,D N,NC,SC,S YES

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 WC-200 Single Slider (Tilt-In) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.56 0.31 1.76 33 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.50 0.31 1.76 29 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.44
0.32
1.82
24
A
N
NO
               
Cardinal LoĒ²-272® Glass-Argon 0.32 0.28 1.59 23 A,B N,NC NO
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.29 0.28 1.59 21 A,B N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.26
0.29
1.65
18
A
N,NC,SC,S
YES
               
Laminated Cardinal LoĒ²-272® Glass-Argon 0.36 0.29 1.65 24 A N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.33 0.30 1.70 21 A N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.29
0.31
1.76
17
A
N,NC,SC
YES

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 WC-201 Single Hung (Tilt-In) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.56 0.31 1.76 33 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.50 0.31 1.76 29 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.45
0.32
1.82
25
A,B
N
NO
               
Cardinal LoĒ²-272® Glass-Argon 0.32 0.28 1.59 23 A,B N,NC NO
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.29 0.28 1.59 21 A,B N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.26
0.29
1.65
17
A
N,NC,SC,S
YES
               
Laminated Cardinal LoĒ²-272® Glass-Argon 0.36 0.29 1.65 23 A N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.33 0.30 1.70 20 A N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.29 0.31 1.76 18 A N,NC,SC YES

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 WC-250 Double Slider (Tilt-In) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.53 0.31 1.76 28 A,B N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.46 0.31 1.76 25 A,B N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.42
0.32
1.82
22
A
N
NO
               
Cardinal LoĒ²-272® Glass-Argon 0.31 0.28 1.59 20 A,B N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.27 0.28 1.59 18 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.25
0.29
1.65
17
A
 N,NC,SC,S
YES
               
Laminated Cardinal LoĒ²-272® Glass-Argon 0.35 0.29 1.65 22 A N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.31 0.30 1.70 19 A N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.28 0.31 1.76 16 A N,NC,SC YES

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 WC-251 Double Hung (Tilt-In) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.53 0.31 1.76 30 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.48 0.31 1.76 27 A,B N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.42
0.31
1.76
24
A
N
NO
               
Cardinal LoĒ²-272® Glass-Argon 0.31 0.28 1.59 21 A,B N,NC NO
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.28 0.28 1.59 19 A,B N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.25
0.29
1.65
17
A
N,NC,SC,S
YES
               
Laminated Cardinal LoĒ²-272® Glass-Argon 0.35 0.29 1.65 22 A N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.31 0.30 1.70 19 A N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.28 0.31 1.76 16 A N,NC,SC YES

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 WC-325 Single Slider (Lift-Out) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.58 0.31 1.76 35 A,B,C,D N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.52 0.31 1.76 31 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills 0.47 0.32 1.82 27 A,B N NO








Cardinal LoĒ²-272® Glass-Argon 0.34 0.28 1.59 25 A,B N,NC NO
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.30 0.28 1.59 22 A,B N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.27 0.29 1.65 19 A N,NC,SC,S YES








Laminated Cardinal LoĒ²-272® Glass-Argon 0.38 0.29 1.65 26 A,B N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.34 0.30 1.70 22 A N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.31 0.31 1.76 19 A N,NC NO

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 WC/HC-350 Double Slider (Lift-Out) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.55 0.31 1.76 33 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.49 0.31 1.76 29 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.44
0.32
1.82
25
A,B
N
NO
               
Cardinal LoĒ²-272® Glass-Argon 0.32 0.28 1.59 23 A,B N,NC NO
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.29 0.28 1.59 21 A,B N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.26
0.29
1.65
18
A
N,NC,SC,S
YES
               
Laminated-Argon-LoĒ²-272® Glass 0.36 0.29 1.65 24 A N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Small Grills 0.32 0.30 1.70 21 A N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Large Grills 0.29 0.31 1.76 18 A N,NC,SC YES

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 WC-400 Casement Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.44 0.28 1.59 30 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.39 0.28 1.59 27 A,B N,NC NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.36
0.28
1.59
26
A,B
N,NC
NO
               
Cardinal LoĒ²-272® Glass-Argon 0.25 0.25 1.42 23 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.23 0.25 1.42 22 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.21
0.25
1.42
21
A,B
N,NC,SC,S
YES
               
Laminated Cardinal LoĒ²-272® Glass-Argon 0.29 0.25 1.42 25 A,B N,NC,SC YES
Laminated Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.26 0.25 1.42 23 A,B N,NC,SC,S YES
Laminated Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.24
0.25
1.42
22
A,B
N,NC,SC,S
YES
               
Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.22 0.20 1.14 27 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.20 0.21 1.19 25 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.22 0.17 0.97 31 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.20 0.17 0.97 30 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.22 0.18 1.02 30 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.2 0.19 1.08 28 A,B,C,D N,NC,SC,S YES

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 WC-425 Awning Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2009 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.51 0.27 1.53 35 A,B,C,D N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.46 0.27 1.53 32 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.42
0.27
1.53
30
A,B,C
N
 NO
               
Cardinal LoĒ²-272® Glass-Argon 0.30 0.25 1.42 25 A,B N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.27 0.25 1.42 24 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.25
0.25
1.42
22
A,B
 N,NC,SC,S
YES
               
Laminated Cardinal LoĒ²-272® Glass-Argon 0.33 0.25 1.42 27 A,B N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.30 0.25 1.42 25 A,B N,NC,SC YES
Laminated Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.28
0.25
1.42
24
A,B
N,NC,SC
YES
               
Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.25 0.20 1.14 29 A,B,C,D N,NS,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.23 0.20 1.14 27 A,B,C,D N,NS,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.25 0.17 0.97 32 A,B,C,D N,NS,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.23 0.17 0.97 31 A,B,C,D N,NS,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.25 0.18 1.02 31 A,B,C,D N,NS,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.23 0.18 1.02 30 A,B,C,D N,NS,SC,S YES

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 WC-450 Picture Window (LP Fixed) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.53 0.29 1.65 34 A,B,C,D N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.48 0.29 1.65 32 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.42
0.29
1.65
28
A,B
N
 NO
               
Cardinal LoĒ²-272® Glass-Argon 0.31 0.26 1.48 25 A,B N,NS NO
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.28 0.26 1.48 24 A,B N,NS,SC YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.25 0.26 1.48 22 A,B N,NC,SC,S YES








Laminated Cardinal LoĒ²-272® Glass-Argon 0.35 0.26 1.42 29 A,B,C N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.31 0.26 1.42 27 A,B N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.28
0.26
1.42
25
A,B
N,NC,SC
YES
               
Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.26 0.19 1.08 31 A,B,C,D N,NS,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.24 0.20 1.14 29 A,B,C,D N,NS,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.26 0.15 0.85 36 A,B,C,D N,NS,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.24 0.15 0.85 35 A,B,C,D N,NS,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.26 0.17 0.97 34 A,B,C,D N,NS,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.24 0.17 0.97 33 A,B,C,D N,NS,SC,S YES

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 WC-475 Fixed Casement (HP Fixed) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.53 0.29 1.65 35 A,B.C.D N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.47 0.29 1.65 31 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills 0.42 0.29 1.65 28 A,B N NO








Cardinal LoĒ²-272® Glass-Argon 0.31 0.26 1.48 26 A,B N,NC NO
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.28 0.26 1.48 24 A,B N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.25 0.26 1.48 22 A,B N,NS,SC,S YES








Laminated Cardinal LoĒ²-272® Glass-Argon 0.35 0.26 1.48 28 A,B N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.31 0.26 1.48 26 A,B N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.28 0.26 1.48 24 A,B N,NC,SC YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.26 0.20 1.08 31 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.24 0.20 1.08 30 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.26 0.16 0.85 36 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.24 0.16 0.85 35 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.26 0.17 0.97 34 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.24 0.18 1.02 32 A,B,C,D N,NC,SC,S YES

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 WC-500 Sliding Glass Door Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.54 0.30 1.70 33 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.49 0.30 1.70 30 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills 0.41 0.30 1.70 26 A,B N NO








Cardinal LoĒ²-272® Glass-Argon 0.31 0.27 1.53 23 A,B N,NC NO
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.27 0.27 1.53 22 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.24
0.27
1.53
20
A,B
N,NC,SC,S
YES
               
Cardinal LoĒ³-366® Glass-Argon 0.21 0.27 1.53 18 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Small Grills 0.18 0.27 1.53 16 A N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Large Grills
0.16
0.27
1.53
15
A
N,NC,SC,S
YES
               
Laminated-Argon-LoĒ²-272® Glass 0.35 0.27 1.53 26 A,B N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Small Grills 0.31 0.27 1.53 24 A,B N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Large Grills
0.23
0.27
1.53
19
A,B
N,NC,SC,S
YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.27 0.21 1.19 29 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.23 0.21 1.19 27 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.26 0.17 0.97 34 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.23 0.18 1.02 31 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.26 0.19 1.08 31 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.23 0.19 1.08 29 A,B,C,D N,NC,SC,S YES

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 HC-101 Casement Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.46 0.29 1.65 30 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.41 0.29 1.65 27 A,B N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.38
0.29
1.65
26
A,B
N,NC
NO
               
Cardinal LoĒ²-272® Glass-Argon 0.27 0.26 1.48 23 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.24 0.26 1.48 21 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.22
0.26
1.48
20
A,B
N,NC,SC,S
YES
               
Cardinal LoĒ³-366® Glass-Argon 0.18 0.26 1.48 17 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Small Grills 0.18 0.26 1.48 16 A N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Large Grills
0.15
0.26
1.48
15
A
 N,NC,SC,S
YES
               
Laminated-Argon-LoĒ²-272® Glass 0.30 0.26 1.48 25 A,B N,NC,SC YES
Laminated-Argon-LoĒ²-272® Glass With Small Grills 0.27 0.26 1.48 23 A,B N,NC,SC,S YES
Laminated-Argon-LoĒ²-272® Glass With Large Grills
0.25
0.26
1.48
22
A,B
 N,NC,SC,S
YES
               
Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.23 0.21 1.19 27 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.21 0.22 1.25 25 A,B,C N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.23 0.18 1.02 30 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.21 0.18 1.02 29 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.23 0.19 1.08 29 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.21 0.19 1.08 28 A,B,C,D N,NC,SC,S YES

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 HC-126 Awning Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.46 0.29 1.65 30 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.42 0.29 1.65 28 A,B N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills 0.38 0.29 1.65 26 A,B N,NC NO








Cardinal LoĒ²-272® Glass-Argon 0.27 0.26 1.48 23 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.24 0.26 1.48 21 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.22 0.26 1.48 20 A,B N,NC,SC,S YES








Cardinal LoĒ³-366® Glass-Argon 0.18 0.26 1.48 18 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Small Grills 0.16 0.26 1.48 17 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with large Grills 0.15 0.26 1.48 16 A,B N,NC,SC,S YES








Laminated-Argon-LoĒ²-272® Glass 0.30 0.26 1.48 25 A,B N,NC,SC YES
Laminated-Argon-LoĒ²-272® Glass With Small Grills 0.27 0.26 1.48 23 A,B N,NC,SC,S YES
Laminated-Argon-LoĒ²-272® Glass With Large Grills 0.25 0.26 1.48 22 A,B N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.23 0.20 1.14 28 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.21 0.21 1.19 26 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.23 0.17 0.97 32 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.21 0.18 1.02 30 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.23 0.19 1.08 29 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.21 0.19 1.08 28 A,B,C,D N,NC,SC,S YES

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 HC-151 Picture Window (LP Fixed) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Factor U-Value ER 2009 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.63 0.30 1.70 39 A,B,C,D N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.57 0.30 1.70 36 A,B,C,D N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills 0.51 0.30 1.70 32 A,B,C N NO








Cardinal LoĒ²-272® Glass-Argon 0.36 0.27 1.53 27 A,B N,NC NO
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.33 0.27 1.53 25 A,B N,NC NO
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.30
0.27
1.53
24
A,B
N,NC,SC
YES
               
Cardinal LoĒ³-366® Glass-Argon 0.24 0.26 1.48 21 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Small Grills 0.22 0.26 1.48 20 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Large Grills
0.20
0.26
1.48
19
A,B
N,NC,SC,S
YES
               
Laminated-Argon-LoĒ²-272® Glass 0.41 0.26 1.48 31 A,B,C N NO
Laminated-Argon-LoĒ²-272® Glass With Small Grills 0.37 0.26 1.48 29 A,B,C N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Large Grills
0.33
0.26
1.48
27
A,B
N,NC
NO
               
Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.31 0.19 1.08 34 A,B,C,D N,NC NO
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.28 0.20 1.14 31 A,B,C,D N,NC,SC YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.31 0.17 0.97 36 A,B,C,D N,NC NO
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.28 0.17 0.97 34 A,B,C,D N,NC,SC YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.31 0.17 0.97 36 A,B,C,D N,NC NO
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.28 0.17 0.97 34 A,B,C,D N,NC,SC YES

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 HC-176 Fixed Casement (HP Fixed) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.45 0.28 1.59 31 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.41 0.28 1.59 29 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills 0.44 0.29 1.65 29 A,B,C N NO








Cardinal LoĒ²-272® Glass-Argon 0.26 0.26 1.48 23 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.24 0.26 1.48 21 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.26 0.26 1.48 23 A,B N,NC,SC,S YES








Cardinal LoĒ³-366® Glass-Argon 0.21 0.26 1.48 20 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Small Grills 0.19 0.26 1.48 18 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Large Grills 0.17 0.26 1.48 17 A,B N,NC,SC,S YES








Laminated-Argon-LoĒ²-272® Glass 0.36 0.26 1.48 28 A,B N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Small Grills 0.32 0.26 1.48 26 A,B N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Large Grills 0.29 0.26 1.48 24 A,B N,NC,SC YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.27 0.20 1.14 31 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.24 0.21 1.19 28 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.27 0.17 0.97 34 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.24 0.18 1.02 31 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.27 0.17 0.97 34 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.24 0.18 1.02 31 A,B,C,D N,NC,SC,S YES

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 HC-210 Single Slider (Tilt-In) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.54 0.32 1.82 30 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.48 0.32 1.82 27 A,B N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills 0.43
0.32
1.82
23 A
N
NO
               
Cardinal LoĒ²-272® Glass-Argon 0.31 0.29 1.65 21 A N.NC NO
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.28 0.29 1.65 19 A N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.25
0.29
1.65
17
A
N,NC,SC,S

YES
               
Cardinal LoĒ³-366® Glass-Argon 0.21 0.29 1.65 15 A N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Small Grills 0.19 0.29 1.65 14 A N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Large Grills
0.17
0.29
1.65
13
A
N,NC,SC,S
YES
               
Laminated-Argon-LoĒ²-272® Glass 0.35 0.29 1.65 23 A N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Small Grills 0.32 0.29 1.65 21 A N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Large Grills
0.28
0.29
1.65
19
A
N,NC,SC
YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.27 0.23 1.31 26 A,B,C N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.24 0.23 1.31 24 A,B,C N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.27 0.19 1.08 31 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.24 0.20 1.14 28 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.27 0.21 1.19 29 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.24 0.21 1.19 27 A,B,C,D N,NC,SC,S YES

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 HC-211 Single Hung Pocket Sill (Tilt-In) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.54 0.32 1.82 31 A,B N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.48 0.32 1.82 27 A,B N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.43
0.32
1.82
24
A
N
NO
               
Cardinal LoĒ²-272® Glass-Argon 0.31 0.29 1.65 21 A N,NC NO
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.28 0.29 1.65 19 A N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.25
0.29
1.65
18
A
N,NC,SC,S
YES
               
Cardinal LoĒ³-366® Glass-Argon 0.21 0.29 1.65 15 A N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Small Grills 0.19 0.29 1.65 14 A N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Large Grills
0.17
0.29
1.65
 13
A
N,NC,SC,S
YES
               
Laminated-Argon-LoĒ²-272® Glass 0.35 0.29 1.65 23 A N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Small Grills 0.32 0.29 1.65 22 A N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Large Grills
0.28
0.29
1.65
19
A
N,NC,SC
YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.27 0.23 1.31 26 A,B,C N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.24 0.24 1.36 23 A,B,C N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.27 0.19 1.08 31 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.24 0.20 1.14 28 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.27 0.21 1.19 29 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.24 0.21 1.19 27 A,B,C,D N,NC,SC,S YES

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 HC-212 Single Hung Slope Sill (Tilt-In) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.54 0.32 1.82 31 A,B N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.48 0.32 1.82 28 A,B N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills 0.43 0.32 1.82 25 A,B N NO








Cardinal LoĒ²-272® Glass-Argon 0.31 0.29 1.65 21 A N,NC NO
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.28 0.29 1.65 20 A N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.25 0.29 1.65 18 A N,NC,SC,S YES








Cardinal LoĒ³-366® Glass-Argon 0.21 0.29 1.65 16 A N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Small Grills 0.19 0.29 1.65 15 A N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Large Grills 0.17 0.29 1.65 13 A N,NC,SC,S YES








Laminated-Argon-LoĒ²-272® Glass 0.35 0.29 1.65 24 A,B N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Small Grills 0.32 0.29 1.65 22 A,B N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Large Grills
0.28
0.29
1.65
20
A,B
N,NC,SC

YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.27 0.23 1.31 27 A,B,C N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.24 0.24 1.36 24 A,B,C N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.27 0.19 1.08 32 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.24 0.20 1.14 29 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.27 0.21 1.19 29 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.24 0.21 1.19 27 A,B,C,D N,NC,SC,S YES

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 HC-260 Double Slider (Tilt-In) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Factor U-Value ER 2009 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.53 0.32 1.82 30 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.47 0.32 1.82 26 A,B N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.42
0.32
1.82
23
A
N
NO
               
Cardinal LoĒ²-272® Glass-Argon 0.30 0.30 1.70 19 A N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.27 0.30 1.70 17 A N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.24
0.30
1.70
16
A
N,NC,SC,S
YES
               
Cardinal LoĒ³-366® Glass-Argon 0.20 0.29 1.65 14 A N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Small Grills 0.18 0.29 1.65 13 A N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Large Grills
0.16
0.29
1.65
12
 A
 N,NC,SC,S
YES
               
Laminated Cardinal LoĒ²-272® Glass-Argon 0.34 0.29 1.65 24 A,B N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.31 0.29 1.65 22 A,B N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.28
0.29
1.65
20
A,B
N,NC,SC
YES
               
Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.26 0.23 1.25 26 A,B,C N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.23 0.24 1.36 22 A,B,C N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.26 0.19 1.08 30 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.23 0.20 1.14 27 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.26 0.21 1.19 28 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.23 0.22 1.25 25 A,B,C,D N,NC,SC,S YES

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 HC-261 Double Hung Pocket Sill Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Facor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.52 0.32 1.82 30 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.47 0.32 1.82 27 A,B N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills 0.42 0.32 1.82 24 A N NO








Cardinal LoĒ²-272® Glass-Argon 0.30 0.29 1.65 21 A N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.27 0.29 1.65 19 A N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.24 0.29 1.65 17 A N,NC,SC,S YES








Cardinal LoĒ³-366® Glass-Argon 0.20 0.29 1.65 15 A N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Small Grills 0.18 0.29 1.65 14 A N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Large Grills 0.16 0.29 1.65 13 A N,NC,SC,S YES








Laminated Cardinal LoĒ²-272® Glass-Argon 0.34 0.29 1.59 24 A,B N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.31 0.29 1.59 22 A,B N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.27 0.29 1.59 20 A,B N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.26 0.23 1.31 26 A,B,C N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.23 0.23 1.31 24 A,B,C N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.26 0.19 1.08 31 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.23 0.19 1.08 29 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.26 0.21 1.19 28 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.23 0.21 1.19 27 A,B,C,D N,NC,SC,S YES

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 HC-262 Double Hung Slope Sill Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.53 0.32 1.82 30 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.47 0.32 1.82 26 A,B N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills 0.42 0.32 1.82 23 A N NO








Cardinal LoĒ²-272® Glass-Argon 0.30 0.29 1.65 20 A N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.27 0.29 1.65 18 A N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.24 0.29 1.65 17 A N,NC,SC,S YES








Cardinal LoĒ³-366® Glass-Argon 0.20 0.29 1.65 14 A N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Small Grills 0.18 0.29 1.65 13 A N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Large Grills 0.16 0.29 1.65 12 A N,NC,SC,S YES








Laminated Cardinal LoĒ²-272® Glass-Argon 0.34 0.29 1.65 23 A N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.31 0.29 1.65 21 A N,NC NO
Laminated Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.28 0.29 1.65 19 A N,NC,SC YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.26 0.23 1.31 25 A,B,C N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.23 0.23 1.31 24 A,B,C N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.26 0.19 1.08 30 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.23 0.20 1.14 27 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.26 0.21 1.19 28 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.23 0.21 1.19 26 A,B,C,D N,NC,SC,S YES

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 HC-401 Casement Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.52 0.29 1.65 35 A,D,C,D N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.47 0.29 1.65 31 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills 0.43 0.29 1.65 28 A,B N NO








Cardinal LoĒ²-272® Glass-Argon 0.30 0.26 1.48 25 A,B N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.27 0.26 1.48 23 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.25 0.26 1.48 22 A,B N,NC,SC,S YES








Cardinal LoĒ³-366® Glass-Argon 0.20 0.26 1.48 19 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Small Grills 0.18 0.26 1.48 18 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Large Grills 0.17 0.26 1.48 17 A,B N,NC,SC,S YES








Laminated-Argon-LoĒ²-272® Glass 0.34 0.26 1.48 27 A,B N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Small Grills 0.31 0.26 1.48 25 A,B N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Large Grills
0.28
0.25
1.42
25
A,B
N,NC,SC
YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.26 0.20 1.14 30 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.23 0.20 1.14 28 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.26 0.16 0.91 35 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.23 0.17 0.97 32 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.26 0.18 1.02 32 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.23 0.18 1.02 31 A,B,C,D N,NC,SC,S YES

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 HC-426 Awning Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.52 0.29 1.65 34 A,B,C,D N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.47 0.29 1.65 31 A,B,C N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.43
0.29
1.65
28
A,B
N
NO
               
Cardinal LoĒ²-272® Glass-Argon 0.30 0.26 1.48 25 A,B N,NC,SC YES
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.27 0.26 1.48 23 A,B N,NC,SC,S YES
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.25
0.26
1.48
22
A,B
N,NC,SC,S
YES
               
Cardinal LoĒ³-366® Glass-Argon 0.20 0.26 1.48 19 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Small Grills 0.18 0.26 1.48 18 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Large Grills 0.17 0.26 1.48 17 A,B N,NC,SC,S YES








Laminated-Argon-LoĒ²-272® Glass 0.34 0.26 1.48 27 A,B N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Small Grills 0.31 0.26 1.48 25 A,B N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Large Grills
0.28
0.25
1.42
25
A,B
N,NC,SC
YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.31 0.25 1.42 27 A,B N,NC NO
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.28 0.25 1.42 25 A,B N,NC,SC YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.26 0.20 1.14 30 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.23 0.20 1.14 28 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.26 0.17 0.97 34 A,B,C,D N,NC,SC,S YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.23 0.18 1.02 31 A,B,C,D N,NC,SC,S YES

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 HC-451 Picture Window (LP Fixed) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.63 0.30 1.70 39 A,B,C,D N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.57 0.30 1.70 36 A,B,C,D N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills
0.51
0.30
1.70
32
A,B,C
N
NO
               
Cardinal LoĒ²-272® Glass-Argon 0.36 0.27 1.53 27 A,B N,NC NO
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.33 0.27 1.53 26 A,B N,NC NO
Cardinal LoĒ²-272® Glass-Argon with Large Grills
0.30
0.27
1.53
24
A,B
N,NC,SC
YES
               
Cardinal LoĒ³-366® Glass-Argon 0.24 0.26 1.48 21 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Small Grills 0.22 0.26 1.48 20 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Large Grills
0.20
0.26
1.48
19
A,B
N,NC,SC,S
YES
               
Laminated-Argon-LoĒ²-272® Glass 0.41 0.26 1.48 31 A,B,C N NO
Laminated-Argon-LoĒ²-272® Glass With Small Grills 0.37 0.26 1.48 29 A,B,C N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Large Grills
0.34
0.26
1.48
27
A,B
N,NC
NO








Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.31 0.19 1.08 34 A,B,C,D N,NC NO
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.28 0.19 1.08 33 A,B,C,D N,NC,SC YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.31 0.14 0.74 42 A,B,C,D N,NC NO
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.28 0.15 0.83 38 A,B,C,D N,NC,SC YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.31 0.16 0.91 37 A,B,C,D N,NC NO
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.28 0.17 0.97 35 A,B,C,D N,NC,SC YES

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 HC-476 Fixed Casement (HP Fixed) Energy Star Zones
Glazing Options



Canada USA

SHGC U-Value U-Factor ER 2010 Zone Zones 30/30
Pilkington Energy Advantage Low-E Glass-argon 0.59 0.29 1.65 38 A,B,C,D N NO
Pilkington Energy Advantage Low-E Glass-argon with Small Grills 0.53 0.29 1.65 34 A,B,C,D N NO
Pilkington Energy Advantage Low-E Glass-argon with Large Grills 0.47 0.29 1.65 31 A,B,C N NO








Cardinal LoĒ²-272® Glass-Argon 0.34 0.26 1.48 27 A,B N,NC,SC,S NO
Cardinal LoĒ²-272® Glass-Argon with Small Grills 0.31 0.26 1.48 26 A,B N,NC NO
Cardinal LoĒ²-272® Glass-Argon with Large Grills 0.27 0.26 1.48 23 A,B N,NC,SC,S YES








Cardinal LoĒ³-366® Glass-Argon 0.22 0.25 1.42 21 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Small Grills 0.20 0.25 1.42 20 A,B N,NC,SC,S YES
Cardinal LoĒ³-366® Glass-Argon with Large Grills 0.18 0.25 1.42 19 A,B N,NC,SC,S YES








Laminated-Argon-LoĒ²-272® Glass 0.38 0.25 1.42 31 A,B,C N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Small Grills 0.35 0.25 1.42 29 A,B,C N,NC NO
Laminated-Argon-LoĒ²-272® Glass With Large Grills
0.31
0.25
1.42
27
A,B
N,NC

NO








Triple Pane Cardinal LoĒ²-272® Glass-Argon 0.29 0.18 1.02 34 A,B,C,D N,NC,SC YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon with Grills 0.26 0.19 1.08 31 A,B,C,D N,NC,SC YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton 0.29 0.14 0.8 39 A,B,C,D N,NC,SC YES
Triple Pane Cardinal LoĒ²-272® Glass-Krypton with Grills 0.26 0.15 0.85 36 A,B,C,D N,NC,SC,S YES








Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton 0.29 0.16 0.91 37 A,B,C,D N,NC,SC YES
Triple Pane Cardinal LoĒ²-272® Glass-Argon/Krypton with Grills 0.26 0.17 0.97 34 A,B,C,D N,NC,SC,S YES

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