Thermal Specifications


U-Factor

Rate of heat flow through the complete heat barrier, from room air to outside air. The lower the U-factor, the better the insulating value. The U-value is the reciprocal of the R-value.


SHGC (Solar Heat Gain Coefficient)

The SHGC is a rating which is now generally replacing the shading coefficient, measuring a window's ability to transmit solar heat. It measures both the solar radiation which is directly transmitted, as well as the solar radiation absorbed by the glass and subsequently transmitted. The lower a unit's solar heat gain coefficient, the less solar heat it transmits, and the greater is its shading ability. The solar heat gain coefficient is approximately equal to the shading coefficient divided by '1.15' and is expressed as a number without units between 0 and 1.


VT (Visible Transmittance)

A fraction of the visible spectrum of sunlight (380 to 720 nanometers), weighted by the sensitivity of the human eye, that is transmitted through a window's, door's, or skylight's glazing. A product with a higher VT transmits more visible light. VT is expressed as a number between 0 and 1.

4500T Series Sliding Door

4500T Series Sliding Door
Exterior Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
4mm Solarban 60 (#2) Air 4mm Clear ¹/₂" Aluminum 0.45 0.35 0.62
4mm Solarban 60 (#2) Argon 4mm Clear ¹/₂" Aluminum 0.41 0.34 0.62
4mm Solarban 60 (#2) Air 4mm Clear 13.6mm Warm Edge 0.44 0.35 0.62
4mm Solarban 60 (#2) Argon 4mm Clear 13.6mm Warm Edge 0.40 0.34 0.62
×

4503 Series Lift & Slide Door

Double Glazed
Exterior Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
5mm Solarban 60 (#2) Air 5mm Clear ⁹/₁₆" Aluminum 0.41 0.32 0.58
5mm Solarban 60 (#2) Argon 5mm Clear ⁹/₁₆" Aluminum 0.37 0.32 0.58
5mm Solarban 60 (#2) Air 5mm Clear 14.6mm Warm Edge 0.40 0.32 0.58
5mm Solarban 60 (#2) Argon 5mm Clear 14.6mm Warm Edge 0.36 0.32 0.58
Triple Glazed
Exterior Glass Gap Center Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
4mm Solarban 60 (#2) Air 4mm Clear Air 4mm Clear ¹/₂", ⁷/₁₆" Aluminum 0.34 0.30 0.54
4mm Solarban 60 (#2) Argon 4mm Clear Air 4mm Clear ¹/₂", ⁷/₁₆" Aluminum 0.32 0.30 0.54
4mm Solarban 60 (#2) Air 4mm Clear Air 4mm Clear 13.6mm, 11.6mm Warm Edge 0.33 0.30 0.54
4mm Solarban 60 (#2) Argon 4mm Clear Air 4mm Clear 13.6mm, 11.6mm Warm Edge 0.31 0.30 0.54
4mm Solarban 60 (#2) Air 4mm Solarban 60 (#4) Air 4mm Clear ¹/₂", ⁷/₁₆" Aluminum 0.30 0.26 0.47
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Air 4mm Clear ¹/₂", ⁷/₁₆" Aluminum 0.28 0.30 0.47
4mm Solarban 60 (#2) Air 4mm Solarban 60 (#4) Air 4mm Clear 13.6mm, 11.6mm Warm Edge 0.28 0.26 0.47
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Air 4mm Clear 13.6mm, 11.6mm Warm Edge 0.27 0.27 0.47
×

5000T Series Residential/Light Commercial

Double Glazed - Picture (Fixed)
Exterior Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
4mm Solarban 60 (#2) Air 4mm Clear ⁹/₁₆" Aluminum 0.36 0.36 0.65
4mm Solarban 60 (#2) Argon 4mm Clear ⁹/₁₆" Aluminum 0.32 0.36 0.65
4mm Solarban 60 (#2) Air 4mm Clear 14.6mm Warm Edge 0.35 0.36 0.65
4mm Solarban 60 (#2) Argon 4mm Clear 14.6mm Warm Edge 0.31 0.36 0.65
Double Glazed - Awning
Exterior Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
4mm Solarban 60 (#2) Air 4mm Clear ⁹/₁₆" Aluminum 0.42 0.30 0.53
4mm Solarban 60 (#2) Argon 4mm Clear ⁹/₁₆" Aluminum 0.39 0.30 0.53
4mm Solarban 60 (#2) Air 4mm Clear 14.6mm Warm Edge 0.40 0.30 0.53
4mm Solarban 60 (#2) Argon 4mm Clear 14.6mm Warm Edge 0.37 0.30 0.53
Double Glazed - Casement
Exterior Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
4mm Solarban 60 (#2) Air 4mm Clear ⁹/₁₆" Aluminum 0.42 0.30 0.53
4mm Solarban 60 (#2) Argon 4mm Clear ⁹/₁₆" Aluminum 0.39 0.30 0.53
4mm Solarban 60 (#2) Air 4mm Clear 14.6mm Warm Edge 0.40 0.30 0.53
4mm Solarban 60 (#2) Argon 4mm Clear 14.6mm Warm Edge 0.37 0.30 0.53
×

9000 Series Double Glazed

Double Glazed - Window Wall
Exterior Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
4mm Solarban 60 (#2) Air 4mm Clear ⁹/₁₆" Aluminum 0.38 0.35 0.63
4mm Solarban 60 (#2) Argon 4mm Clear ⁹/₁₆" Aluminum 0.34 0.35 0.63
4mm Solarban 60 (#2) Air 4mm Clear 14.6mm Warm Edge 0.36 0.35 0.63
4mm Solarban 60 (#2) Argon 4mm Clear 14.6mm Warm Edge 0.32 0.35 0.63
Double Glazed - Awning
Exterior Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
4mm Solarban 60 (#2) Air 4mm Clear ⁹/₁₆" Aluminum 0.52 0.24 0.41
4mm Solarban 60 (#2) Argon 4mm Clear ⁹/₁₆" Aluminum 0.50 0.24 0.41
4mm Solarban 60 (#2) Air 4mm Clear 14.6mm Warm Edge 0.50 0.24 0.41
4mm Solarban 60 (#2) Argon 4mm Clear 14.6mm Warm Edge 0.48 0.24 0.41
Double Glazed - Casement
Exterior Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
4mm Solarban 60 (#2) Air 4mm Clear ⁹/₁₆" Aluminum 0.52 0.25 0.42
4mm Solarban 60 (#2) Argon 4mm Clear ⁹/₁₆" Aluminum 0.49 0.25 0.42
4mm Solarban 60 (#2) Air 4mm Clear 14.6mm Warm Edge 0.50 0.25 0.42
4mm Solarban 60 (#2) Argon 4mm Clear 14.6mm Warm Edge 0.47 0.25 0.42
×

Double Glazed - Curtain Wall
Exterior Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
6mm Solarban 60 (#2) Air 6mm Clear ¹/₂" Aluminum 0.38 0.36 0.63
6mm Solarban 60 (#2) Argon 6mm Clear ¹/₂" Aluminum 0.34 0.36 0.63
Double Glazed - Awning
Exterior Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
6mm Solarban 60 (#2) Air 6mm Clear ¹/₂" Aluminum 0.45 0.31 0.54
6mm Solarban 60 (#2) Argon 6mm Clear ¹/₂" Aluminum 0.41 0.31 0.54
×

9003 Series Triple Glazed

Triple Glazed Window Wall
Exterior Glass Gap Center Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
4mm Solarban 60 (#2) Air 4mm Clear Air 4mm Clear ⁵/₈", ¹¹/₁₆" Aluminum 0.30 0.32 0.56
4mm Solarban 60 (#2) Argon 4mm Clear Air 4mm Clear ⁵/₈", ¹¹/₁₆" Aluminum 0.28 0.32 0.56
4mm Solarban 60 (#2) Air 4mm Clear Air 4mm Clear 14.6mm, 19.6mm Warm Edge 0.27 0.32 0.56
4mm Solarban 60 (#2) Argon 4mm Clear Air 4mm Clear 14.6mm, 19.6mm Warm Edge 0.25 0.32 0.56
4mm Solarban 60 (#2) Air 4mm Solarban 60 (#4) Air 4mm Clear ⁵/₈", ¹¹/₁₆" Aluminum 0.25 0.28 0.50
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Air 4mm Clear ⁵/₈", ¹¹/₁₆" Aluminum 0.23 0.28 0.50
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Argon 4mm Clear ⁵/₈", ¹¹/₁₆" Aluminum 0.22 0.28 0.50
4mm Solarban 60 (#2) Air 4mm Solarban 60 (#4) Air 4mm Clear 14.6mm, 19.6mm Warm Edge 0.22 0.28 0.50
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Air 4mm Clear 14.6mm, 19.6mm Warm Edge 0.21 0.28 0.50
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Argon 4mm Clear 14.6mm, 19.6mm Warm Edge 0.20 0.28 0.50
Triple Glazed Awning
Exterior Glass Gap Center Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
4mm Solarban 60 (#2) Air 4mm Clear Air 4mm Clear ⁵/₈", ¹¹/₁₆" Aluminum 0.48 0.23 0.38
4mm Solarban 60 (#2) Argon 4mm Clear Air 4mm Clear ⁵/₈", ¹¹/₁₆" Aluminum 0.46 0.23 0.38
4mm Solarban 60 (#2) Air 4mm Clear Air 4mm Clear 14.6mm, 19.6mm Warm Edge 0.46 0.23 0.38
4mm Solarban 60 (#2) Argon 4mm Clear Air 4mm Clear 14.6mm, 19.6mm Warm Edge 0.44 0.23 0.38
4mm Solarban 60 (#2) Air 4mm Solarban 60 (#4) Air 4mm Clear ⁵/₈", ¹¹/₁₆" Aluminum 0.44 0.21 0.34
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Air 4mm Clear ⁵/₈", ¹¹/₁₆" Aluminum 0.43 0.21 0.34
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Argon 4mm Clear ⁵/₈", ¹¹/₁₆" Aluminum 0.43 0.21 0.34
4mm Solarban 60 (#2) Air 4mm Solarban 60 (#4) Air 4mm Clear 14.6mm, 19.6mm Warm Edge 0.42 0.21 0.34
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Air 4mm Clear 14.6mm, 19.6mm Warm Edge 0.41 0.21 0.34
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Argon 4mm Clear 14.6mm, 19.6mm Warm Edge 0.40 0.21 0.34
Triple Glazed Casement
Exterior Glass Gap Center Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
4mm Solarban 60 (#2) Air 4mm Clear Air 4mm Clear ⁵/₈", ¹¹/₁₆" Aluminum 0.49 0.23 0.38
4mm Solarban 60 (#2) Argon 4mm Clear Air 4mm Clear ⁵/₈", ¹¹/₁₆" Aluminum 0.47 0.23 0.38
4mm Solarban 60 (#2) Air 4mm Clear Air 4mm Clear 14.6mm, 19.6mm Warm Edge 0.47 0.23 0.38
4mm Solarban 60 (#2) Argon 4mm Clear Air 4mm Clear 14.6mm, 19.6mm Warm Edge 0.45 0.23 0.38
4mm Solarban 60 (#2) Air 4mm Solarban 60 (#4) Air 4mm Clear ⁵/₈", ¹¹/₁₆" Aluminum 0.45 0.21 0.34
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Air 4mm Clear ⁵/₈", ¹¹/₁₆" Aluminum 0.44 0.21 0.34
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Argon 4mm Clear ⁵/₈", ¹¹/₁₆" Aluminum 0.44 0.21 0.34
4mm Solarban 60 (#2) Air 4mm Solarban 60 (#4) Air 4mm Clear 14.6mm, 19.6mm Warm Edge 0.43 0.21 0.34
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Air 4mm Clear 14.6mm, 19.6mm Warm Edge 0.42 0.21 0.34
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Argon 4mm Clear 14.6mm, 19.6mm Warm Edge 0.42 0.21 0.34
×

9100 Series Flush Glazed

Double Glazed Window Wall
Exterior Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
5mm Solarban 60 (#2) Air 5mm Clear 1 ¹/₁₆" Aluminum 0.40 0.35 0.61
5mm Solarban 60 (#2) Argon 5mm Clear 1 ¹/₁₆" Aluminum 0.36 0.35 0.61
Double Glazed Awning
Exterior Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
5mm Solarban 60 (#2) Air 5mm Clear 1 ¹/₁₆" Aluminum 0.53 0.24 0.39
5mm Solarban 60 (#2) Argon 5mm Clear 1 ¹/₁₆" Aluminum 0.51 0.24 0.39
Double Glazed Casement
Exterior Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
5mm Solarban 60 (#2) Air 5mm Clear 1 ¹/₁₆" Aluminum 0.53 0.24 0.40
5mm Solarban 60 (#2) Argon 5mm Clear 1 ¹/₁₆" Aluminum 0.50 0.24 0.40
Triple Glazed Window Wall
Exterior Glass Gap Center Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
4mm Solarban 60 (#2) Air 4mm Clear Air 4mm Clear 11.6mm, 13.6mm Warm Edge 0.29 0.32 0.56
4mm Solarban 60 (#2) Argon 4mm Clear Air 4mm Clear 11.6mm, 13.6mm Warm Edge 0.26 0.32 0.56
4mm Solarban 60 (#2) Air 4mm Solarban 60 (#4) Air 4mm Clear 11.6mm, 13.6mm Warm Edge 0.23 0.28 0.49
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Air 4mm Clear 11.6mm, 13.6mm Warm Edge 0.22 0.28 0.49
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Argon 4mm Clear 11.6mm, 13.6mm Warm Edge 0.21 0.28 0.49
Triple Glazed Awning
Exterior Glass Gap Center Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
4mm Solarban 60 (#2) Air 4mm Clear Air 4mm Clear 11.6mm, 13.6mm Warm Edge 0.45 0.22 0.36
4mm Solarban 60 (#2) Argon 4mm Clear Air 4mm Clear 11.6mm, 13.6mm Warm Edge 0.44 0.22 0.36
4mm Solarban 60 (#2) Air 4mm Solarban 60 (#4) Air 4mm Clear 11.6mm, 13.6mm Warm Edge 0.42 0.19 0.32
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Air 4mm Clear 11.6mm, 13.6mm Warm Edge 0.41 0.20 0.32
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Argon 4mm Clear 11.6mm, 13.6mm Warm Edge 0.40 0.19 0.32
Triple Glazed Casement
Exterior Glass Gap Center Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
4mm Solarban 60 (#2) Air 4mm Clear Air 4mm Clear 11.6mm, 13.6mm Warm Edge 0.45 0.23 0.37
4mm Solarban 60 (#2) Argon 4mm Clear Air 4mm Clear 11.6mm, 13.6mm Warm Edge 0.44 0.23 0.37
4mm Solarban 60 (#2) Air 4mm Solarban 60 (#4) Air 4mm Clear 11.6mm, 13.6mm Warm Edge 0.42 0.20 0.33
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Air 4mm Clear 11.6mm, 13.6mm Warm Edge 0.41 0.20 0.33
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Argon 4mm Clear 11.6mm, 13.6mm Warm Edge 0.40 0.20 0.33
×

9502 Series Double Glazed Swing Door

Double Glazed Swing Door
Exterior Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
5mm Solarban 60 (#2) Air 5mm Clear ⁵/₈" Aluminum 0.45 0.26 0.44
5mm Solarban 60 (#2) Argon 5mm Clear ⁵/₈" Aluminum 0.42 0.26 0.44
5mm Solarban 60 (#2) Air 5mm Clear 15.6mm Warm Edge 0.44 0.26 0.44
5mm Solarban 60 (#2) Argon 5mm Clear 15.6mm Warm Edge 0.41 0.26 0.44
×

9503 Series Triple Glazed Swing Door

Triple Glazed Swing Door
Exterior Glass Gap Center Glass Gap Interior Glass Spacer U-Factor
(Btu/h-ft²-°F)
SHGC VT
4mm Solarban 60 (#2) Air 4mm Clear Air 4mm Clear ¹/₂", ¹/₂" Aluminum 0.40 0.24 0.40
4mm Solarban 60 (#2) Argon 4mm Clear Air 4mm Clear ¹/₂", ¹/₂" Aluminum 0.38 0.24 0.40
4mm Solarban 60 (#2) Air 4mm Clear Air 4mm Clear 13.6mm, 13.6mm Warm Edge 0.38 0.24 0.40
4mm Solarban 60 (#2) Argon 4mm Clear Air 4mm Clear 13.6mm, 13.6mm Warm Edge 0.37 0.24 0.40
4mm Solarban 60 (#2) Air 4mm Solarban 60 (#4) Air 4mm Clear ¹/₂", ¹/₂" Aluminum 0.36 0.21 0.36
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Air 4mm Clear ¹/₂", ¹/₂" Aluminum 0.35 0.22 0.36
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Argon 4mm Clear ¹/₂", ¹/₂" Aluminum 0.34 0.21 0.36
4mm Solarban 60 (#2) Air 4mm Solarban 60 (#4) Air 4mm Clear 13.6mm, 13.6mm Warm Edge 0.34 0.21 0.36
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Air 4mm Clear 13.6mm, 13.6mm Warm Edge 0.33 0.22 0.36
4mm Solarban 60 (#2) Argon 4mm Solarban 60 (#4) Argon 4mm Clear 13.6mm, 13.6mm Warm Edge 0.33 0.21 0.36
×