|
|
3-Element
Glazing System Performance Data
4-Element
Glazing System Performance Data
VISIONWALL
3 and 4 Element Performance Ranges
Air
leakage, sound transmission and condensation resistance data
Definitions:
U Value, Shading
Coefficient, Solar Heat Gain Coefficient
|
|
| |
|
VISIONWALL
3 and 4 Element Performance Ranges
|
|
| |
|
|
System
|
U
Value
(complete
window)
|
Shading
Coefficient
(SC) |
Solar
Heat Gain
Coefficient
(SHGC) |
Visible
Light
Transmission
(Tvis) |
|
Type
|
Frame
Series
|
Btu/hr•ft2•oF |
W/m2•oC |
|
3 - Element
|
M10/M20/M30/M40
|
0.37 to 0.21
|
2.10 to 1.21
|
0.08 to 0.65
|
0.07 to 0.56
|
10% to 61%
|
|
4 - Element
|
100/200 |
0.25 to 0.14
|
1.39 to 0.81
|
0.08 to 0.59
|
0.07 to 0.50
|
10% to 53%
|
|
|
| |
|
3-Element
Glazing System Performance Data
with Series M10 / M20 / M30
/ M40 Frames
|
|
| |
|
Glazing
Unit
Construction
|
Outer
Lite
Glass
Type
|
U
Value
(complete
window)
|
Shading
Coefficient
(SC)
|
Solar
Heat Gain
Coefficient
(SHGC)
|
Visible
Light
Transmission
(Tvis)
|
|
Btu/hr•ft2•oF
|
W/m2•oC
|
|
|
| |
|
Low-E
Coated
Outer Lite
Low-E Coated
Clear Glass
Inner Lite
|
Clear |
0.21
|
1.21
|
0.27
|
0.23
|
40%
|
| Green
Tinted |
0.21
|
1.21
|
0.21
|
0.18
|
34%
|
| Grey
Tinted |
0.21
|
1.21
|
0.17
|
0.15
|
21%
|
| Bronze
Tinted |
0.21
|
1.21
|
0.18
|
0.15
|
24%
|
| Blue
Tinted |
0.21
|
1.21
|
0.18
|
0.16
|
24%
|
| Aqua
Tinted |
0.21
|
1.21
|
0.22
|
0.19
|
34%
|
| PPG
Azurlite® |
0.21
|
1.21
|
0.19
|
0.16
|
32%
|
| LOF
Evergreen™ |
0.21
|
1.21
|
0.18
|
0.15
|
30%
|
|
|
| |
|
Low-E
Coated
Outer Lite
Non-Coated
Clear Glass
Inner Lite
|
Clear |
0.26
|
1.47
|
0.33
|
0.29
|
49%
|
| Green
Tinted |
0.26
|
1.47
|
0.26
|
0.24
|
41%
|
| Grey
Tinted |
0.26
|
1.47
|
0.21
|
0.18
|
26%
|
| Bronze
Tinted |
0.26
|
1.47
|
0.23
|
0.20
|
29%
|
| Blue
Tinted |
0.26
|
1.47
|
0.23
|
0.21
|
30%
|
| Aqua
Tinted |
0.26
|
1.47
|
0.26
|
0.24
|
42%
|
| PPG
Azurlite® |
0.26
|
1.47
|
0.23
|
0.20
|
39%
|
| LOF
Evergreen™ |
0.26
|
1.47
|
0.24
|
0.19
|
36%
|
|
|
| |
|
Non-Coated
Outer Lite
Non-Coated
Clear Glass
Inner Lite
|
Clear |
0.37
|
2.10
|
0.65
|
0.56
|
61%
|
| Green
Tinted |
0.37
|
2.10
|
0.44
|
0.38
|
53%
|
| Grey
Tinted |
0.37
|
2.10
|
0.41
|
0.36
|
31%
|
| Bronze
Tinted |
0.37
|
2.10
|
0.45
|
0.38
|
37%
|
| Blue
Tinted |
0.37
|
2.10
|
0.33
|
0.28
|
29%
|
| Aqua
Tinted |
0.37
|
2.10
|
0.45
|
0.39
|
52%
|
| PPG
Azurlite® |
0.37
|
2.10
|
0.35
|
0.30
|
49%
|
| LOF
Evergreen™ |
0.37
|
2.10
|
0.35
|
0.30
|
46%
|
|
|
| |
|
top
The performance
data tables show a sample of the performance range that can be achieved
with VISIONWALL high performance window and curtain wall systems. With
literally thousands of combinations of glass and coatings available, a
VISIONWALL system can be custom engineered to meet the building designer's
specifications. Consult your local VISIONWALL representative or our Canadian
or United States sales offices for specific information on the appropriate
VISIONWALL system for your building project.
4-Element
Glazing
SystemPerformance Data
with Series 100 / 200 Frames
|
|
| |
|
Glazing
Unit
Construction
|
Outer
Lite
Glass
Type
|
U
Value
(complete
window)
|
Shading
Coefficient
(SC)
|
Solar
Heat Gain
Coefficient
(SHGC)
|
Visible
Light
Transmission
(Tvis)
|
|
Btu/hr•ft2•oF
|
W/m2•oC
|
|
|
| |
|
Low-E
Coated
Outer Lite
Low-E Coated
Clear Glass
Inner Lite
|
Clear |
0.14
|
0.81
|
0.24
|
0.21
|
35%
|
| Green
Tinted |
0.14
|
0.81
|
0.18
|
0.16
|
30%
|
| Grey
Tinted |
0.14
|
0.81
|
0.15
|
0.13
|
18%
|
| Bronze
Tinted |
0.14
|
0.81
|
0.16
|
0.14
|
21%
|
| Blue
Tinted |
0.14
|
0.81
|
0.16
|
0.14
|
22%
|
| Aqua
Tinted |
0.14
|
0.81
|
0.19
|
0.16
|
30%
|
| PPG
Azurlite® |
0.14
|
0.81
|
0.17
|
0.14
|
28%
|
| LOF
Evergreen™ |
0.14
|
0.81
|
0.16
|
0.14
|
26%
|
|
|
| |
|
Low-E
Coated
Outer Lite
Non-Coated
Clear Glass
Inner Lite
|
Clear |
0.18
|
1.02
|
0.30
|
0.25
|
43%
|
| Green
Tinted |
0.18
|
1.02
|
0.22
|
0.19
|
36%
|
| Grey
Tinted |
0.18
|
1.02
|
0.19
|
0.16
|
23%
|
| Bronze
Tinted |
0.18
|
1.02
|
0.20
|
0.17
|
26%
|
| Blue
Tinted |
0.18
|
1.02
|
0.20
|
0.17
|
26%
|
| Aqua
Tinted |
0.18
|
1.02
|
0.23
|
0.20
|
37%
|
| PPG
Azurlite® |
0.18
|
1.02
|
0.20
|
0.17
|
34%
|
| LOF
Evergreen™ |
0.18
|
1.02
|
0.19
|
0.16
|
32%
|
|
|
| |
|
top
Window shading coefficient
and visible light transmission are governed mainly by the type of glass
used in the glazing unit. The low values shown are indicative of the performance
characteristics associated with highly reflective glass and the high numbers
are indicative of clear glass performance. VISIONWALL window and curtain
wall systems can be manufactured using clear, tinted or reflective glass.
The U values shown in the above tables are for the complete window (glazing
unit frame) and take into account the impact of edge conditions and frame
construction on the window's performance.
The performance
data shown in the preceding tables was derived using the Window 4.1 Computer
Program from the Lawrence Berkeley National Laboratory, Berkeley, CA 94720
USA, and is based on the standard ASHRAE/NFRC weather conditions and a
48" x 72" (1220mm x 1830mm) window. The data shown is based on one
glass manufacturer's coatings. Different coatings will result in
minor changes in the data.
Definitions
U Value:
is the overall heat transfer coefficient. The U values shown are for a
complete window (glazing unit + frame). The smaller the U value the better
the window is at stopping heat flow. The R value of a window is the reciprocal
of the U value (i.e. R=1/U)
Shading
Coefficient (SC): is a dimensionless number representing the ratio
of solar heat gain through the window system relative to that through
1/8" (3mm) thick clear glass at normal incidence. Low shading coefficients
can significantly reduce cooling requirements.
Solar
Heat Gain Coefficient (SHGC): the solar heat gain coefficient of the
total window system represents the solar heat gain through the window
system relative to the incident solar radiation. Low solar heat gain coefficients
can significantly reduce cooling requirements.
top
|
|
