10.3 Daylighting

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This Chart displays Design Daylight Factor per Unit Floor Area within the Perimeter Zone to specific each Façade/Surface. Clicking on a specific Surface will just display results for that alone.  The results are graded by color to provide a visual indication of low daylight (gray) to good daylight (yellow).

Daylighting Chart displays average daylight of Surfaces selected

Note: if major changes are made to the model (for instance, if large areas of glazing are created/deleted or walls which originally had some glazing become solid walls), the Charts may not update without recalculating the solar loads in the Building Manager.

This is because Guardian Glass for BIM assigns Surfaces to the exterior of the model based on Floor Levels, Rooms/Spaces, and Glazed Areas. Surfaces which the application assigns to walls with glazing may change if the model is modified and new Surfaces may need to be created and old ones need to be deleted.

Opening the Building Manager and recalculating the Solar Loads will resolve this issue. In some cases, it may be helpful to close the application and reopen if a lot of changes have been made to the model.  An up to date Revit Energy Model is then created, and new Surfaces may be assigned to the project when the Solar Loads are recalculated in the Building Manager.

When a specific Façade is selected in the Façades tab more detail is displayed from this parent Façade, such as the child surfaces. To go back to viewing all results, click on the arrow button at the top of the window (which will only display when a specific Façade or Surface is selected).  This will also uncheck any previous selections in the Façade Navigator.

If several Surfaces have been selected and the Charts display these results, clicking on any Surface bar in the Chart will select just that Surface and display monthly values. Using the roll up arrow on the top right of the Charts panel will return to viewing all the Facades (any previous selections will be canceled).


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