WINDOW Software Downloads

Version 7.6.04
Released: December 08, 2017

Release Notes:

 

Installation Issues

This version will update previous versions of WINDOW 7.6

When you install this new version of WINDOW, a completely new set of directories is created, so that you can have other versions (WINDOW 7.4 and 7.5) installed at the same time. 

Error "The installation of Microsoft Visual C++ 2015 Redistributable Package (x86) appears to have failed"

When you are installing WINDOW, if you get a message at the beginning of the installation "wizard" to Install "Microsoft Visual C++ 2015 Redistributable Package (x86)", click the Install button on that screen.

The installation will try to install that package, and if it fails, a message will appear saying that the installation has failed. It will ask if you want to continue the installation. Click the Yes button, and the WINDOW installation should continue without further incident, and WINDOW should run without any problems.

If you have any other problems or questions about the installation, email WINDOWHelp@lbl.gov

Bug Fixes

Revision to slat shade thermal openness (A_h) equation

Modifications were made to implement correctly the slat spacing used in Laouadi's paper, as well as account for the slat thickness when tilted, which that paper does not account for. This is only applicable when shades are full tilted (the impact is essentially zero for all other cases). It also has a very minor impact on SHGC since solar dominates there. 

Visible and solar properties were mixed up in some instances

This has been fixed.

Comparisons with Previous Versions

  • 100 glazing system set comparison
    • Berkeley Lab WINDOW 7.4.14 vs Berkeley Lab WINDOW 7.6.04 [PDF]
Version 7.4.14
Released: December 09, 2016

Release Notes:

Enhancements

Increase Frame Glazing System Tolerance upper limit to 2000%

In the Options tab of Preferences, it is possible to set the Frame Glazing System Thickness Tolerance %. However, the allowed value had an upper limit of 100%, which was not sufficient for modeling storm windows, which sometimes need that value to be > 1000%. Therefore, the upper limit of this value was increased to 2000%.

Bug Fixes

Extinction Coefficient Calculation

This version fixes a bug related to calculating the extinction coefficient (equation 7.2.1g in the WINDOW 4 Documentation of Calculation Procedures) in the angle dependence calculation for monolithic glass layers. The limit of 1E-10 is replaced with 1E-10.

Non-Convergence Errors for Some Glazings Systems with Shades

In previous versions of WINDOW the program would report non-convergence errors for glazing systems with shading systems. This has been fixed.

Preference Setting for "Don't Show CR Warning Messages Didn't "Stick"

In previous versions of WINDOW, checking the "Don't show CR warning messages" didn't stick between program sessions. This has been fixed.

Comparisons with Previous Versions

  • 100 glazing system set comparison
    • Berkeley Lab WINDOW 7.4.14 vs Berkeley Lab WINDOW 7.4.06 [PDF]
  • 100 glazing system set comparison
    • Berkeley Lab WINDOW 7.4.14 vs Berkeley Lab WINDOW 6.3.74 [PDF]
  • Set of whole products, specular glazing systems
    • Berkeley Lab WINDOW 7.4.14 / THERM 7.4.04 vs Berkeley Lab WINDOW 7.4.06 / THERM 7.4.03 [PDF]