One WindowType should be created for each type of window. If the “Export Defaults” under Energy Settings in Project Information is not checked, this element is not exported.
Supported Attributes:
| Attribute | Description |
|---|---|
| Id | Unique identifier for the layer. Normally prefixed with opn-. |
Supported Children:
| Element | Description |
|---|---|
| Name | |
| U-value | Overall conductance |
| SolarHeatGainCoeff |
The center of glass solar heat gain coefficient. Each SolarHeatGainCoeff element can have a SolarIncidentAngle attribute indicating the Incident angel of the SHGC value. If there is no SolarIncidentAngle attribute, this indicates it’s diffuse. The SHGC value is the fraction of incident irradiance that enters through the glazing and becomes heat gain. |
| Transmittance | The light transmitting property of a window. This value takes into account the spectral response of the human eye in addition to the solar-weighted solar transmittance. |
Sample:
<WindowType id="opn-w60" openingType="FixedWindow">
<Name>Double glazing - 1/8 in. thick</Name>
<Description>Double glazing - 1/8 in. thick</Description>
<U-value unit="WPerSquareMeterK">1.9873</U-value>
<SolarHeatGainCoeff unit="Fraction" solarIncidentAngle="0">0.65</SolarHeatGainCoeff>
<SolarHeatGainCoeff unit="Fraction" solarIncidentAngle="40">0.64</SolarHeatGainCoeff>
<SolarHeatGainCoeff unit="Fraction" solarIncidentAngle="50">0.61</SolarHeatGainCoeff>
<SolarHeatGainCoeff unit="Fraction" solarIncidentAngle="60">0.56</SolarHeatGainCoeff>
<SolarHeatGainCoeff unit="Fraction" solarIncidentAngle="70">0.43</SolarHeatGainCoeff>
<SolarHeatGainCoeff unit="Fraction" solarIncidentAngle="80">0.23</SolarHeatGainCoeff>
<SolarHeatGainCoeff unit="Fraction">0.57</SolarHeatGainCoeff>
<Transmittance unit="Fraction" type="Visible">0.76</Transmittance>
</WindowType>