Glazing & Finishing | Glass Glazed Sky Lighting for Commercial Applications | Wasco Products
Glazing and Finishing Options
Glazing Options
Standard glazings for Wasco® residential SkyWindows® include:
- Clear (Tempered Outer, Tempered Inner)
- Performance Plus 2 (Tempered over Low-E, Argon Gas Filled)
- Performance Plus 2 Laminated
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NEW -- Hurricane-Resistant Low-E Insulating Glass Now Wasco® SkyWindow® skylights are available with high performance hurricane-resistant laminated glass, providing superior safety and security that meets Dade County, IBC/IRC and other stringent state building codes for skylights installed in Wind Zone 3 coastal applications. Go to Hurricane Resistant Windows. |
SkyWindow® Glazing Performance Data
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Glazing Options
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% Transmittance
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% Reflectance
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Winter
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Summer
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Visible
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Solar
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Visible
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Solar
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U-value
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U-value
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Shading
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Relative Heat Gain
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Total
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Total
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Ext.
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Int.
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Ext.
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Night
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Daytime
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Coeff.
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SHGC
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| Clear |
82
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71
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15
|
15
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13
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0.49
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0.55
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0.89
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0.77
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186
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| Performance Plus 2 |
70
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38
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16
|
19
|
39
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0.24
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0.23
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0.55
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0.47
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113
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| Performance Plus 2 Laminated |
68
|
35
|
17
|
18
|
39
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0.26
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0.29
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0.54
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0.46
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112
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| Glazing Options |
UV Blockage
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| Clear |
43.6%
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| Performance Plus 2 |
78.0%
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| Performance Plus 2 Laminated |
99.8%
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SkyWindow® Thermal Performance*
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Model/Glazing
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EF
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EV/EVM
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GS
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GSV
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Patio Door
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Clear IG
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0.57
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0.62
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0.53
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0.61
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0.50
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Performance Plus 2
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0.34
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0.41
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0.32
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0.38
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0.32
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Performance Plus 2
Laminated |
0.34
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0.35
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0.30
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0.38
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NA
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* Thermal performance factors per NFRC 100-97
Explanation Of Terms
Visible Light: radiant energy from 380nm - 780nm wavelengths
% Transmittance: percentage of visible light directly transmitted through glass
% Reflectance Int.: percentage of visible light directly reflected indoors from glass
% Reflectance Ext.: percentage of visible light directly reflected outdoors from glass
Solar Energy: the sun's radiant energy, ranging from 300nm - 4000nm wavelengths
% Transmittance: percentage of solar energy directly transmitted through glass
% Reflectance Ext.: percentage of solar energy directly reflected outdoors from glass
U-Value: air-to-air thermal conductance of glass and associated air/gas layers; units are Btu/hr.ft2 deg F
Shading Coeff.: fraction of solar heat, direct plus indirect transferred indoors through glass (for reference, 1/8" clear glass has a Shading Coeff. of 1.00)
SHGC (Solar Heat Gain Coefficient): fraction of solar energy transferred indoors both directly (radiation) and indirectly (convection/absorption/re-radiation) through the glass (for reference, 1/8" clear glass has a SHGC of 0.86)
Relative Heat Gain: total net gain to indoor heat due to both air-to-air thermal conductance and solar heat gain; units are Btu/hr.ft2
Finish Options
Standard finish for all E-Class® and Curb-Mount Skylights is bronze enamel. Ten baked enamel designer colors are available for all Architectural Series models, and as optional finishes for E-Class and Curb-Mount models. Colors are shown below, approximated by computer display colors. Copper cladding is available on some units.
