Performance Ratings

Energy efficiency is impacted by the combination of frame material used selected, the window style, and the glass used. Compare the performance of our various window styles against the following criteria:

R Value: Restrictive ambient air flow. The amount of head retained by a window; the higher the number, the better the glass
U Factor: Rate of heat loss. The total ultraviolet rays entering a window, generally responsible for fading; the lower the number, the better the glass.
SHGC: 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.
VT: Visible Light Transmission. How much visible light enters through the glass; the higher the number, the more light gets through.

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Vinyl Window Performance

Vinyl Casement

Double Glazed: Vista Series  |  Triple Glazed: Comfort Series

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
Clear Glass DG 2.44 0.40 0.50 0.52
Eco Gain 180 DG1 3.70 0.27 0.44 0.50 1, 2
Eco Shield 270 DG1 3.70 0.27 0.24 0.45 1
Eco Max Shield 366 DG1 3.85 0.26 0.18 0.41 1
Clear Glass TG 3.33 0.30 0.45 0.48 1
Eco Gain 180 TG1 4.55 0.22 0.38 0.46 1, 2, 3
Eco Shield 270 TG1 4.55 0.22 0.22 0.41 1, 2, 3
Eco Max Shield 366 TG1 4.55 0.22 0.16 0.38 1, 2
Eco Gain 180 TG2 5.26 0.19 0.36 0.44 1, 2, 3
Eco Shield 270 TG2 5.56 0.18 0.20 0.35 1, 2, 3
Eco Max Shield 366 TG2 5.56 0.18 0.16 0.30 1, 2, 3

Vinyl Awning

Double Glazed: Vista Series  |  Triple Glazed: Comfort Series

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
Clear Glass DG 2.44 0.41 0.50 0.52
Eco Gain 180 DG1 3.57 0.28 0.44 0.50 1, 2
Eco Shield 270 DG1 3.70 0.27 0.24 0.45 1
Eco Max Shield 366 DG1 3.70 0.27 0.18 0.41 1
Clear Glass TG 3.33 0.30 0.45 0.48 1, 2
Eco Gain 180 TG1 4.35 0.23 0.38 0.46 1, 2
Eco Shield 270 TG1 4.55 0.22 0.22 0.41 1, 2
Eco Max Shield 366 TG1 4.55 0.22 0.17 0.38 1, 2
Eco Gain 180 TG2 5.26 0.19 0.36 0.44 1, 2, 3
Eco Shield 270 TG2 5.56 0.18 0.20 0.35 1, 2, 3
Eco Max Shield 366 TG2 5.56 0.18 0.16 0.30 1, 2, 3

Vinyl Single Hung

Double Glazed: Vista Series  |  Triple Glazed: Comfort Series

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
Clear Glass DG 2.13 0.47 0.63 0.66
Eco Gain 180 DG1 3.33 0.30 0.55 0.64 1, 2, 3
Eco Shield 270 DG1 3.33 0.30 0.30 0.56
Eco Max Shield 366 DG1 3.45 0.29 0.22 0.52
Clear Glass TG 3.03 0.33 0.54 0.58 1, 2
Eco Gain 180 TG1 4.35 0.23 0.46 0.56 1, 2, 3
Eco Shield 270 TG1 4.17 0.24 0.27 0.49 1, 2
Eco Max Shield 366 TG1 4.35 0.23 0.20 0.46 1, 2
Eco Gain 180 TG2 5.26 0.19 0.44 0.54 1, 2, 3
Eco Shield 270 TG2 5.26 0.19 0.24 0.42 1, 2, 3
Eco Max Shield 366 TG2 5.56 0.18 0.18 0.36 1, 2, 3

Vinyl Horizontal Slider

Double Glazed: Vista Series  |  Triple Glazed: Comfort Series

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
Clear Glass DG 2.13 0.47 0.63 0.66
Eco Gain 180 DG1 3.33 0.30 0.55 0.64 1, 2, 3
Eco Shield 270 DG1 3.33 0.30 0.30 0.56
Eco Max Shield 366 DG1 3.45 0.29 0.22 0.52
Clear Glass TG 3.03 0.33 0.54 0.58 1, 2
Eco Gain 180 TG1 4.35 0.23 0.47 0.56 1, 2, 3
Eco Shield 270 TG1 4.35 0.23 0.26 0.49 1, 2
Eco Max Shield 366 TG1 4.35 0.23 0.20 0.45 1, 2
Eco Gain 180 TG2 5.26 0.19 0.44 0.54 1, 2, 3
Eco Shield 270 TG2 5.26 0.19 0.24 0.42 1, 2, 3
Eco Max Shield 366 TG2 5.56 0.18 0.18 0.36 1, 2, 3
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Aluminum Clad Vinyl Window Performance

Aluminum Clad Vinyl Casement

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
Clear Glass DG 2.50 0.41 0.50 0.52
Eco Gain 180 DG1 3.57 0.28 0.44 0.50 1, 2
Eco Shield 270 DG1 3.70 0.27 0.24 0.45 1
Eco Max Shield 366 DG1 3.70 0.27 0.18 0.41 1
Clear Glass TG 3.33 0.30 0.45 0.48 1, 2
Eco Gain 180 TG1 4.55 0.22 0.38 0.46 1, 2, 3
Eco Shield 270 TG1 4.55 0.22 0.22 0.41 1, 2
Eco Max Shield 366 TG1 4.55 0.22 0.17 0.38 1, 2
Eco Gain 180 TG2 5.26 0.19 0.36 0.44 1, 2, 3
Eco Shield 270 TG2 5.56 0.18 0.20 0.35 1, 2, 3
Eco Max Shield 366 TG2 5.56 0.18 0.16 0.30 1, 2, 3

Aluminum Clad Vinyl Awning

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
Clear Glass DG 2.38 0.42 0.50 0.52
Eco Gain 180 DG1 3.57 0.28 0.44 0.50 1, 2
Eco Shield 270 DG1 3.70 0.27 0.24 0.45 1
Eco Max Shield 366 DG1 3.70 0.27 0.18 0.41 1
Clear Glass TG 3.33 0.30 0.45 0.48 1, 2
Eco Gain 180 TG1 4.55 0.22 0.38 0.46 1, 2, 3
Eco Shield 270 TG1 4.55 0.22 0.22 0.41 1, 2
Eco Max Shield 366 TG1 4.55 0.22 0.17 0.38 1, 2
Eco Gain 180 TG2 5.26 0.19 0.36 0.44 1, 2, 3
Eco Shield 270 TG2 5.56 0.18 0.20 0.35 1, 2, 3
Eco Max Shield 366 TG2 5.56 0.18 0.16 0.30 1, 2, 3

Aluminum Clad Vinyl Single Hung & Horizontal Slider

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
Clear Glass DG 2.13 0.47 0.59 0.62
Eco Gain 180 DG1 3.23 0.31 0.52 0.59 1, 2
Eco Shield 270 DG1 3.33 0.30 0.28 0.53
Eco Max Shield 366 DG1 3.33 0.30 0.21 0.49
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Aluminum Clad Wood Window Performance

Aluminum Clad Wood Casement

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
Clear Glass DG 2.22 0.45 0.53 0.55
Eco Gain 180 DG1 3.23 0.31 0.47 0.53 1, 2
Eco Shield 270 DG1 3.33 0.30 0.25 0.47 1
Eco Max Shield 366 DG1 3.45 0.29 0.19 0.43
Clear Glass TG 3.03 0.33 0.48 0.51 1
Eco Gain 180 TG1 3.85 0.26 0.41 0.46 1, 2
Eco Shield 270 TG1 4.00 0.25 0.23 0.43 1, 2
Eco Max Shield 366 TG1 4.00 0.25 0.17 0.40 1
Eco Gain 180 TG2 4.55 0.22 0.39 0.47 1, 2, 3
Eco Shield 270 TG2 4.76 0.21 0.21 0.37 1, 2, 3
Eco Max Shield 366 TG2 4.76 0.21 0.16 0.31 1, 2

Aluminum Clad Vinyl Awning

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
Clear Glass DG 2.22 0.45 0.53 0.55
Eco Gain 180 DG1 3.23 0.31 0.47 0.53 1, 2
Eco Shield 270 DG1 3.33 0.30 0.25 0.47 1
Eco Max Shield 366 DG1 3.45 0.29 0.19 0.43 1
Clear Glass TG 3.03 0.33 0.48 0.51 1
Eco Gain 180 TG1 3.85 0.26 0.41 0.49 1, 2
Eco Shield 270 TG1 4.00 0.25 0.23 0.43 1, 2
Eco Max Shield 366 TG1 4.00 0.25 0.17 0.40 1, 2
Eco Gain 180 TG2 4.55 0.22 0.39 0.47 1, 2, 3
Eco Shield 270 TG2 4.76 0.21 0.21 0.37 1, 2, 3
Eco Max Shield 366 TG2 4.76 0.21 0.16 0.31 1, 2, 3
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Vinyl Sliding Patio Door Performance

Vinyl Vista Sliding Patio Door

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
Clear Glass DG 2.22 0.45 0.59 0.62
Eco Gain 180 DG1 3.23 0.31 0.53 0.60 1, 2
Eco Shield 270 DG1 3.33 0.30 0.28 0.53
Eco Max Shield 366 DG1 3.45 0.29 0.21 0.49

Vinyl Classic Sliding Patio Door

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
Clear Glass DG 2.17 0.46 0.60 0.63
Eco Gain 180 DG1 3.33 0.30 0.53 0.61
Eco Shield 270 DG1 3.45 0.29 0.28 0.54
Eco Max Shield 366 DG1 3.45 0.29 0.21 0.49
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Aluminum Clad Vinyl Sliding Patio Door Performance

Aluminum Clad Vinyl Sliding Patio Door

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
LoE DG1 1.76 0.31 0.55 0.60 1, 2
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Aluminum Clad Wood Sliding Patio Door Performance

Aluminum Clad Wood 650 Sliding Patio Door

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
Clear Glass DG 2.13 0.47 0.60 0.53
Eco Gain 180 DG1 3.03 0.33 0.54 0.61 1, 2
Eco Shield 270 DG1 3.23 0.31 0.29 0.54
Eco Max Shield 366 DG1 3.23 0.31 0.21 0.50

Aluminum Clad Wood 670 Sliding Patio Door

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
Clear Glass DG 2.13 0.47 0.60 0.63
Eco Gain 180 DG1 3.03 0.33 0.54 0.61 1, 2
Eco Shield 270 DG1 2.23 0.31 0.29 0.54
Eco Max Shield 366 DG1 3.23 0.31 0.21 0.50

Aluminum Clad Wood Swing/Terrace Patio Door

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
Clear Glass DG 2.27 0.44 0.47 0.49
Eco Gain 180 DG1 3.03 0.33 0.42 0.47
Eco Shield 270 DG1 3.23 0.31 0.22 0.42
Eco Max Shield 366 DG1 3.23 0.31 0.17 0.38
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Entry & Garden Door Performance

Fiberglass Entry & Garden Doors

FiberStain  |  FiberTuff

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
No Lite 7.69 0.13 0.01 0.00 1, 2, 3
Half Lite Clear Glass DG 4.00 0.25 0.19 0.20 1, 2
Half Lite Eco Gain 180 DG1 4.76 0.21 0.17 0.19 1, 2, 3
Half Lite Eco Shield 270 DG1 5.00 0.20 0.09 0.17 1, 2, 3
Half Lite Eco Max Shield 366 DG1 5.00 0.20 0.07 0.15 1, 2, 3
Full Lite Clear Glass DG 2.94 0.34 0.34 0.35
Full Lite Eco Gain 180 DG1 3.85 0.26 0.31 0.34 1
Full Lite Eco Shield 270 DG1 4.17 0.24 0.16 0.30 1, 2
Full Lite Eco Max Shield 366 DG1 4.17 0.24 0.12 0.28 1, 2

Steel Entry & Garden Doors

Glazing Type R Value U Factor SHGC VT Canadian
Energy Star
Zone 2015
No Lite 8.33 0.12 0.01 0.00 1, 2, 3
Half Lite Clear Glass DG 4.17 0.24 0.19 0.20 1, 2
Half Lite Eco Gain 180 DG1 5.00 0.20 0.17 0.19 1, 2, 3
Half Lite Eco Shield 270 DG1 5.26 0.19 0.09 0.17 1, 2, 3
Half Lite Eco Max Shield 366 DG1 5.26 0.19 0.07 0.15 1, 2, 3
Full Lite Clear Glass DG 3.03 0.33 0.34 0.35
Full Lite Eco Gain 180 DG1 4.00 0.25 0.31 0.34 1, 2
Full Lite Eco Shield 270 DG1 4.17 0.24 0.16 0.30 1, 2
Full Lite Eco Max Shield 366 DG1 4.35 0.23 0.12 0.28 1, 2