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VISIONWALL structural silicone curtain wall is available in either the 3 or 4-element glazing arrangements. The performance ranges used to choose one or the other are: |
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3-Element
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4-Element
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| Winter Design Temperature of: | Above
0°F Above -18°C |
Below
0°F Below -18°C |
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| *R-Value of: | 2.7 to 4.7 | 4.0 to 7.1 | |||
| *U-Value of: | 0.37 to 0.21 Btu/hr•ft2•°F | 0.25 to 0.14 Btu/hr•ft2•°F | |||
| *U-Value of: | 2.10 to 1.21 W/m2•°C | 1.39 to 0.81 W/m2•°C | |||
| Sound Transmission Class of: |
36
to 44
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40
to 45
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| * R & U values shown above are for the complete window (glazing unit & frame) and take into the account the impact of edge conditions and frame construction on the window's performance. | |||||
