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Version 7.8.55

Released: August 12, 2022

Release Notes:

Installation Files

If you have installed previous versions of WINDOW 7.8, it is recommended that you uninstall the older version and then install this latest version.
 

  • WINDOW 7.8.55 Setup Full (Window7_8_55_SetupFull.exe)

    • ​Complete installation if you have never installed WINDOW before

  • WINDOW 7.8.55 Setup Small (Window7_8_55_SetupSmall.exe)

    • ​Smaller installation if you have installed previous versions of WINDOW

  • ***** Redistributable libraries *****

    • If you do not install them, you will get DLL errors when trying to run WINDOW

  • Radiance for WINDOW (RadianceForWindowSetup.exe)

    • ​Radiance installation needed for the WINDOW Radiance Feature

This version will not update WINDOW 7.6 versions -- it makes a completely new version

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 7.6) installed at the same time. 

Comparisons with Previous Versions

  • 100 glazing system set comparison

    • Berkeley Lab WINDOW 7.4.14 vs Berkeley Lab WINDOW 7.8.28 [PDF]

WINDOW 7 Release History

See below for a list of the Enhancements, Bug Fixes and Known issues for the major WINDOW 7 release notes.​

 

WINDOW Release Notes 7.8.55

Bug Fixes

  • Window Library
    • Window Library: Can't import records from another MDB (sometimes) - FIXED
  • Frame Library
    • Frame Library: Import options for WINDOW and THERM are not correct  - FIXED

 

WINDOW Release Notes 7.8.53

Bug Fixes

  • Glazing System Library
    • List View: The Comment field from the detail view was added to the list view. It may be hidden when you first open the list view, but if you "drag" the right hand column edge and pull it to the right, you will see the Comment field (by default it is "hidden".

 

WINDOW Release Notes 7.8.52

Bug Fixes

  • Window Library
    • Detail View: Moving from one record to the next, with a glazing system selected in the window graphic, caused the program to overlap the graphics from the previous and next records -- FIXED
    • SHGC Calculation: Calculating SHGC multiple times would change the SHGC value if a venetian blind had been calculated first -- FIXED

 

WINDOW Release Notes 7.8.49

This version has no changes from 7.8.47 except for compatibility with THERM 7.8.36

 

WINDOW Release Notes 7.8.47

Bug Fixes

  • General
    • Added "Cancel All" button to calculation progress dialog box
    • Fixed case where "Use Matrix Method" check boxes became checked when they shouldn't be
  • Window Library
    • Detail View
      • Awnings: Annual results do not always display when awnings are modeled -- FIXED
      • Increased width of ID box
    • Awning calculations -- Radiance command window now longer appears during awning calculations
  • Glazing System Library
    • Diffuse layers may now be modeled by themselves
  • Update dialog
    • Cleaned up update dialog box -- removed "Use cookie for website login"

New Features / Changes

  • Direct / Diffuse model added for diffuse materials such as fritted glass

 

WINDOW Release Notes 7.8.38

Bug Fixes

  • Window Library
    • Horizontal slider with awning crashes WINDOW from WINDOW 7.7.10 db - FIXED
    • Database integrity check invalidates results for shades and awnings - FIXED
    • SHGC / VT Detail table doesn't match Window results - FIXED
    • Problem simulating blinds - FIXED
    • Changed dimensions for Garage Doors and Sidelite per NFRC - FIXED
    • Awnings were not being properly calculated {Results Change}  - FIXED
  • Frame Library
    • CR Results not being calculated even though THERM files has results  - FIXED
    • Detail View -- THERM button does not work - FIXED
  • Glass Library
    • Changing Conductivity in UI does not change conductivity in GlazingProperties db table - FIXED
    • Problems updating the library from new IGDB vresions -- FIXED
  • Gap Library
    • Gas Mixtures were not working properly, ie, turning a mixture back into a pure gas - FIXED
    • Toolbar navigation buttons Next and Previous were not showing the correct records  - FIXED
    • Various other issues with gas mixtures - FIXED
    • Specific Heat Ratio for SF6 was incorrect - FIXED
  • Glazing System Library
    • Calculation resulted in message: Failed to get Therm Result - FIXED
    • Deflection modeling has been disabled while we update the calculation methodology - FIXED
    • Optics DLL error when calculating "All Records"  - FIXED
    • When modeling Shading Layers in a glazing system, the program was not correctly accounting for gaps around the Shading Layer (ie, dtop, dbot, etc) - FIXED
    • genBSDF: Valid optical results do not exist, even though the file exists - FIXED
  • Preferences
    • ​Add capability to change font size of the list displays in options - FIXED
  • Debug File
    • Surface temperatures relate to SHGC conditions whereas the gap temperatures do not - FIXED

New Features / Changes

  • Window Library
    • Set PDD for No Divider case to zero rather than null 
  • Glass Library
    • Editing the optical data in the detail view is disabled if there is spectral data associated with the record
    • Problem importing Optics records because of ID conflict with Shade Materials - updated message to be more informative
  • Glazing System 
    • Updates airflow coefficients for all shading systems except for Venetian blinds.
      • {Results Change} This will affect the U-factor and SHGC results for shading systems. 

 

WINDOW Release Notes 7.8.28

Known Bugs

If you find any issues, please email [email protected].

  • Window Library calculations with shading systems are not saved

    • When calculating a record in the Window Library that contains a glazing system with a shading system, including an Awning, the results will not be saved if the "Database integrity check ..." box (accessed via the File/Preference menu, Options tab) is checked. 

    • Workaround: Uncheck the "Database integrity check..." 

 

Bug Fixes

  • Glass Library Update

    • Fixed issue reported by user of sometimes getting an error code when updating the Glass Library to the latest version of the IGDB. This has been fixed.

  • Window Library

    • Clicking Cancel during matrix calculation (for AERCalc IDF) in Window Library crashes program - FIXED

    • Awnings: Several fixes to awnings feature

      • Program now displays a warning if the needed XML file for the awning is missing

      • Program was calculating awning results if "use matrix method for specular systems" was checked, even if "Awnings" was NOT checked in the Window record; Annual results are no longer calculated or displayed when the "Awnings" checkbox is unchecked.

    • SHGC 0/1 and VT 0/1 for the "no divider" case are now written to the WINDOW database (all the divider cases will be added in a future 7.8 release, coming soon)

  • Glass Library 

    • Import Glass Layer from Optics - overwriting protected record keeps user defined record as protected - FIXED

    • updating IGDB was broken in intermediate versions of WINDOW 7.8 -- FIXED

  • Gas Library

    • Adding first entry to gas mixture loses the record name - FIXED

  • Environmental Conditions: 

    • Making new env conditions record results in error message - FIXED

  • Glazing System Library:

    • Matrices not being written to BSDF XML file for some glazing systems - FIXED

    • Initialization problem when running glazing system deflection models from the List view - FIXED

    • For WINDOW databases with many glazing system library records (4,000+) the program would take up to a minute to move from the detail view to the list view, due to the program checking to make sure that the results for the records and all their dependent records. There is now a checkbox in File / Preferences, Options tab that allows the user to turn off those checks while creating and editing the records. The check can be turned on again as needed after the records have been created and calculated.  

New Features

  • Glazing System Library:

    • Allow Shading Layer (in particular Frit) to be modeled alone in a glazing system

 

WINDOW Release Notes 7.8.27

Bug Fixes

  • Window Library
    • Clicking Cancel during matrix calculation (for AERCalc IDF) in Window Library crashes program - FIXED
    • Awnings: Several fixes to awnings feature
      • Program now displays a warning if the needed XML file for the awning is missing
      • Program was calculating awning results if "use matrix method for specular systems" was checked, even if "Awnings" was NOT checked in the Window record; Annual results are no longer calculated or displayed when the "Awnings" checkbox is unchecked.
    • SHGC 0/1 and VT 0/1 for the "no divider" case are now written to the WINDOW database (all the divider cases will be added in a future 7.8 release, coming soon)
  • Glass Library: 
    • Import Glass Layer from Optics - overwriting protected record keeps user defined record as protected - FIXED
    • updating IGDB was broken in intermediate versions of WINDOW 7.8 -- FIXED
  • Gas Library:
    • Adding first entry to gas mixture loses the record name - FIXED
  • Environmental Conditions: 
    • Making new env conditions record results in error message - FIXED
  • Glazing System Library:
    • Matrices not being written to BSDF XML file for some glazing systems - FIXED
    • Initialization problem when running glazing system deflection models from the List view - FIXED
    • For WINDOW databases with many glazing system library records (4,000+) the program would take up to a minute to move from the detail view to the list view, due to the program checking to make sure that the results for the records and all their dependent records. There is now a checkbox in File / Preferences, Options tab that allows the user to turn off those checks while creating and editing the records. The check can be turned on again as needed after the records have been created and calculated.  

New Features

  • Glazing System Library:
    • Allow Shading Layer (in particular Frit) to be modeled alone in a glazing system

Version 7.7.16

Released: January 04, 2022

Release Notes:

NOTE:

This latest updated version of WINDOW 7.7 (7.7.16) fixes several issues with importing records between WINDOW databases for the Shade Material and Shading Layer Library. 

This version is recommended if you are using the Complex Glazing Database (CGDB) for modeling shading systems (and haven't moved to the WINDOW 7.8 series). 

This version is compatible with AERCalc version 1.2.10, ie, you can make Windows in 7.7.16 and AERCalc will import and calculate them (even though it is using WINDOW 7.7.01)

Installation Files

IMPORTANT: Please read the Installation Notes below

 

  • WINDOW 7.7.16 Setup Full (Window7_7_16_SetupFull.exe)

    • ​Complete installation if you have never installed WINDOW before

  • WINDOW 7.7.16 Setup Small (Window7_7_16_SetupSmall.exe)

    • ​Smaller installation if you have installed previous versions of WINDOW

  • ​***** Redistributable libraries *****

    • If you do not install them, you will get DLL errors when trying to run WINDOW

  • Radiance for WINDOW (RadianceForWindowSetup.exe)

    • ​Radiance installation needed for the WINDOW Radiance Feature

Comparisons with Previous Versions

  • 100 glazing system set comparison

    • Berkeley Lab WINDOW 7.7.10 vs Berkeley Lab WINDOW 7.7.16 [PDF]

WINDOW 7 Release History

See below for a list of the Enhancements, Bug Fixes and Known issues for the major WINDOW 7 release notes.

Bug Fixes

7.7.16
 

Shade Material Library: Can't overwrite existing records

This has been fixed so it is now possible to update the Shade Material Library with the latest Complex Glazing Database records.

Shade Material Library: changed ID not saved on import from Optics User Database, so averaged optical values are not calculated

This has been fixed. 

Shading Layer Library: Importing Shading Layer Library records from another WINDOW database stopped early in the import

This has been fixed so it is now possible to update the Shading Layer Library with the latest Complex Glazing Database records.

Shading Layer Library: For Shading Systems defined with THMX files (such as cellular shades) the illuminance source was shifted int he y-coordinate

This has been fixed

Environmental Conditions Library: Making new records results in error message

This has been fixed

Glazing System Library: Allow a Shading Layer record to be modeled alone in a glazing system

This new functionality has been implemented

Glazing System Library: Effective conductivities were being displayed from the SHGC calculation, not the U-factor calculation

This has been fixed

Gas Library: Adding first entry to gas mixture loses the record name

This has been fixed

Glass Library: Importing a record from the Optics User Database to overwrite an existing protected record brings the record in as protected

This has been fixed. User defined records in Optics are now imported as unprotected, even if they are overwriting a protected record

 

Version 7.8.28

Released: May 27, 2021

Release Notes:

Installation Files

If you have installed previous versions of WINDOW 7.8, it is recommended that you uninstall the older version and then install this latest version.
 

  • WINDOW 7.8.28 Setup Full (Window7_8_28_SetupFull.exe)

    • ​Complete installation if you have never installed WINDOW before

  • WINDOW 7.8.28 Setup Small (Window7_8_28_SetupSmall.exe)

    • ​Smaller installation if you have installed previous versions of WINDOW

  • ***** Redistributable libraries *****

    • If you do not install them, you will get DLL errors when trying to run WINDOW

  • Radiance for WINDOW (RadianceForWindowSetup.exe)

    • ​Radiance installation needed for the WINDOW Radiance Feature

This version will not update WINDOW 7.6 versions -- it makes a completely new version

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 7.6) installed at the same time. 

Comparisons with Previous Versions

  • 100 glazing system set comparison

    • Berkeley Lab WINDOW 7.4.14 vs Berkeley Lab WINDOW 7.8.28 [PDF]

WINDOW 7 Release History

See below for a list of the Enhancements, Bug Fixes and Known issues for the major WINDOW 7 release notes.

 

Known Bugs

7.8.28

 

If you find any issues, please email [email protected].

Window Library calculations with shading systems are not saved

When calculating a record in the Window Library that contains a glazing system with a shading system, including an Awning, the results will not be saved if the "Database integrity check ..." box (accessed via the File/Preference menu, Options tab) is checked. 

Workaround: Uncheck the "Database integrity check..." 

Bug Fixes

7.8.28

 

Glass Library Update

Fixed issue reported by user of sometimes getting an error code when updating the Glass Library to the latest version of the IGDB. This has been fixed.

Window Library

  • Clicking Cancel during matrix calculation (for AERCalc IDF) in Window Library crashes program - FIXED

  • Awnings: Several fixes to awnings feature

    • Program now displays a warning if the needed XML file for the awning is missing

    • Program was calculating awning results if "use matrix method for specular systems" was checked, even if "Awnings" was NOT checked in the Window record; Annual results are no longer calculated or displayed when the "Awnings" checkbox is unchecked.

  • SHGC 0/1 and VT 0/1 for the "no divider" case are now written to the WINDOW database (all the divider cases will be added in a future 7.8 release, coming soon)

Glass Library 

  • Import Glass Layer from Optics - overwriting protected record keeps user defined record as protected - FIXED

  • updating IGDB was broken in intermediate versions of WINDOW 7.8 -- FIXED

Gas Library:

  • Adding first entry to gas mixture loses the record name - FIXED

Environmental Conditions: 

  • Making new env conditions record results in error message - FIXED

Glazing System Library:

  • Matrices not being written to BSDF XML file for some glazing systems - FIXED

  • Initialization problem when running glazing system deflection models from the List view - FIXED

  • For WINDOW databases with many glazing system library records (4,000+) the program would take up to a minute to move from the detail view to the list view, due to the program checking to make sure that the results for the records and all their dependent records. There is now a checkbox in File / Preferences, Options tab that allows the user to turn off those checks while creating and editing the records. The check can be turned on again as needed after the records have been created and calculated.  

New Features

7.8.28

 

Glazing System Library:

  • Allow Shading Layer (in particular Frit) to be modeled alone in a glazing system

Version 8.0

Released: April 06, 2021

Release Notes:

 

WINDOW 8 and THERM 8 Research Version

 

WINDOW 8 and THERM 8 are the latest versions of our tools that are available for testing. The main added functionality for THERM 8 is transient moisture and thermal modeling.

It is not recommended that the THERM 8 Research Version is used for conventional thermal modeling, as it is still in the testing phase.

Click here to access a web page with both WINDOW 8 and THERM 8 installation files and documentation

Version 7.7.10

Released: March 06, 2020

Release Notes:

 

Installation Files

IMPORTANT: Please read the Installation Notes below

 

  • WINDOW 7.7.10 Setup Full (Window7_7_10_SetupFull.exe)

    • ​Complete installation if you have never installed WINDOW before

  • WINDOW 7.7.10 Setup Small (Window7_7_10_SetupSmall.exe)

    • ​Smaller installation if you have installed previous versions of WINDOW

  • ​***** Redistributable libraries *****

    • If you do not install them, you will get DLL errors when trying to run WINDOW

  • Radiance for WINDOW (RadianceForWindowSetup.exe)

    • ​Radiance installation needed for the WINDOW Radiance Feature

This version will not update WINDOW 7.6 versions -- it makes a completely new version

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 7.6) installed at the same time. 

 

Comparisons with Previous Versions

  • 100 glazing system set comparison

    • Berkeley Lab WINDOW 7.4.14 vs Berkeley Lab WINDOW 7.7.10 [PDF]

WINDOW 7 Release History

See below for a list of the Enhancements, Bug Fixes and Known issues for the major WINDOW 7 release notes.


 

Known Bugs

7.7.10

Environmental Conditions -- Can't make a new record

In this version, it is not possible to make new Environmental Conditions. If you need this functionality, you should probably uninstall 7.7.10 and install 7.7.07

Bug Fixes

7.7.10

Glass Library Update

Fixed issue reported by user of sometimes getting an error code when updating the Glass Library to the latest version of the IGDB. This has been fixed.

Gap Library: New name reverts to Default on Save

Program now should keep the changed name on Save (rather than reverting back to Default).

Gap Library: Up and down arrows don't work when creating a gas mixture

This has been fixed

Error opening WINDOW 7.4 database in 7.7

This has been fixed

Improvements in Libraries when saving new records

Under some circumstances, program would create a new record in a library even if the "Overwrite existing records is checked". This has been fixed in the Glazing System Library, but may still be a problem in the Glass Library.

Program asks to save record even if nothing has changed

This annoying bug has been at least partially fixed. The program should no longer ask to save the record (when going from Detail view to List view) if nothing has changed. There still may be edge cases that aren't covered, but hopefully this is a much needed improvement for the general case.

If the program can't open a WINDOW database, it gets into an infinite loop

When this happens, the program now allows you to select another database, rather than having to end the program through Task Manager (!)

Window Library: Double arrow selection of Type does not update the image

This has been fixed

Window Library: Under some circumstances, the name was not saved

This has been fixed

 

 

Version 7.7.07

Released: July 03, 2019

Release Notes:

 

Installation Files

  • WINDOW 7.7.07 Setup Full (Window7_7_07_SetupFull.exe)

    • ​Complete installation if you have never installed WINDOW before

  • WINDOW 7.7.07 Setup Small (Window7_7_07_SetupSmall.exe)

    • ​Smaller installation if you have installed previous versions of WINDOW​

  • ***** Redistributable libraries *****

    • If you do not install them, you will get DLL errors when trying to run WINDOW

  • Radiance for WINDOW (RadianceForWindowSetup.exe)

    • ​Radiance installation needed for the WINDOW Radiance Feature

This version will not update WINDOW 7.6 versions -- it makes a completely new version

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 7.6) installed at the same time. 

 

Comparisons with Previous Versions

  • 100 glazing system set comparison

    • Berkeley Lab WINDOW 7.4.14 vs Berkeley Lab WINDOW 7.7.07 [PDF]

Enhancements

7.7.07

Shading Layer Library

Added Optical Openness input for shading layers in the Shading Layer Library

Matrix Library reader

Has been adapted to use the new Radiance version

Radiance

Updated to Radiance version 5.2, Oct 29, 2018

7.7.01

Compiled with updated libraries

WINDOW (and THERM) were compiled with Visual Studio 2017 and Intel Fortran Composed XE 2018. Hence the need to install these as redistributables when installing this new version

Better Scaling on high DPI (resolution)  monitors

Using the newer Microsoft Visual C++ components allowed better scaling on high resolution monitors. Now WINDOW list views are scaled better so that they are (hopefully) readable.

Glass Library ID Limit of 65000 no longer exists

When importing a glass layer from Optics, WINDOW was restricting the ID to a value no larger than 65000. This limit no longer exists. 

Approval symbol now displayed for Shading Systems in the Glazing System Library

The "approval" symbol (# for NFRC, @ for AERC) is now displayed for records in the Glazing System Library.

Vertical and Horizontal blinds

EnerygPlus now uses different algorithms for the thermal calculations of vertical and horizontal slatted blinds. This resulted in

  • Additions to the Energy Plus BSDF IDF file from WINDOW to reflect these changes

Eliminated calculation time estimate for genBSDF calculations

In the Shading Layer Library when Type = THERM, when you click the Calc button, the program generates a "genBSDF" file that can take the program a long time to generate (many minutes). The program used to try to estimate the time it would take to do this calculation; that estimation just added yet MORE time to the simulation (!), so that estimate has been eliminated from the calculation process. Just know that calculating the genBSDF files can take a long time.

Bug Fixes

7.7.07

Database name and path didn't appear in the program title bar immediately on opening the program

This has been fixed

Incorrect absorptance calculation in BSDF

This has been fixed

Glazing System Report change

Vtc has been changed to Tvis under the Optical Properties section

Angular calculations for some cases (PET) were not correct

This has been fixed

Command line did not support new PermeabilityFactor input

This has been fixed

Angular calculations resulted in R+T>1 in some cases

This has been fixed

Angular calculations were broken when using the matrix method for specular glass

This has been fixed

"Frame doesn't exist" message

In some cases, the program would display the message "Frame doesn't exist" in a Window Library record, when the frame actually did exist in the Frame Library. This has been fixed.

 

When reading BSDF matrix values the program was not using the standard library

This has been fixed

7.7.01

Chromogenics calculations fixed

Previous versions resulted in different results for Chromogenics glazing systems in List and Detail view in the Window Library. This has been fixed.

Window Library

  • Changing the name of the Window caused the program to invalidate the results. This has been fixed -- the results remain even after a name change. 

Shading Layer Library

  • The name of the record in the Shading Layer Library would become blank after browsing to a THERM THMX file (when Type = THERM THMX). This has been fixed. 
  • The interactions between fields when defining a Venetian blind (horizontal or vertical) have been refined. For example, some fields would appear to be editable, when actually they were not, based on how the other inputs were configured. Hopefully, this screen is now clearer in terms of what can be edited. Feedback ([email protected]) is always welcome. 
  • Calculations for between glass venetian blinds have been changed to use the Waterloo method for all cases (regardless of gap with between the blind and the glass layers) with the SDScalar coefficients set to 0.7 (rather than the default of 1.0). This results in better correlation to our test results. 

Glazing System Library

  • The program would not display the Radiance results after finishing the calculation unless you moved to another library and back again. This has been fixed.
  • In the Detail view, the IG Height and IG Width boxes were not big enough to show all the significant digits. This has been fixed.

Gap Library

  • Feedback boxes displaying the values for Coefficients were not big enough to show all the significant digits of the values. This has been fixed. 

Version 7.4.14

Released: December 09, 2016

Release Notes:

 

Installation Files
 

  • WINDOW 7.4.14 Setup Full (window7_4_14_SetupFull.exe)

    • ​Complete installation if you have never installed WINDOW before

  • WINDOW 7.4.14 Setup Small (window7_4_14_SetupSmall.exe)

    • ​Smaller installation if you have installed previous versions of WINDOW

  • Radiance for WINDOW (RadianceForWindowSetup.exe)

    • ​Radiance installation needed for the WINDOW Radiance Feature
       

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]

Automatic Update Tracking

Our software will automatically check for updated version of the program each time the program is started. This means that information about how frequently you start the program is transmitted to our servers. Please read this document about what information is tracked and how to disable it.