Condensation Resistance Calculation Error Message in WINDOW

Software/Versions Affected:

If you get the following message in the WINDOW Window Library when doing a calculation, you need to recalculate the file in THERM, setting the Preferences as listed below:

In order for WINDOW to calculate the Condensation Resistance in the Window Library, you must have the following Preference set in THERM:

  • Go to the Options menu, Preferences option
  • In the Therm File Options tab, Check "Use CR Model for Glazing System"