How to create a window while containing the appropriate transparency value?

[Anonymous]

What’s the exact way of modeling a window while containing the appropriate transparency value? Should I draw each pane manually in the REVIT window family or is it enough to draw a simple single glazed window and set the number of panes within the “material browser – appearance tab” to the appropriate number.

For example: For a double glazed window I´d draw two window panes in the REVIT family with a thickness of 5mm each. In the "material browser - appearance tab" I have to enter the RGB value. In this case (Tvis = 70%) 96. The option Reflectance remains unchanged at 15 and the sheets of Glass at 2. Is that correct?

Or is it enough to draw a simple single glazed window with 10mm thickness in REVIT and change the setting in the "material browser - appearance tab" to 2 sheets of glass (RGB and Reflectance would remain unchanged).

How can I create a triple glazing accordingly?

Another unclear point is how to use the table if we have a Tvis of 75%. Should I simply use the mean value between 189 and 96 (double 5mm). The point is that many windows have transparency values of say 62% etc.. Would interpolation between the RGB values corresponding to 60% and 70% be correct?

[scheerd]

It sound like you're using the instructions for the old version of Insight.

First thing to do is get the latest version, which vastly improves the process of managing materials:

https://insight360.autodesk.com/oneenergy/Landing/Download

NOTE the banner message at the top of that page, referencing a document about the new materials for Insight v4+.

You can model glazing however you want, but it's much easier if you model as a monolithic pane rather than multiple panes.  All default families and curtain panels are modeled as a single pane, and glass manufacturers provide performance for the whole IGU rather than each pane in the unit, and you can apply that transparency of the IGU to your monolithic panel.

'Panes' should not be changed in the 'old' glazing appearance assets.  That's a red herring and the transparency is calibrated to the '2' panes setting, no matter what the actual IGU or what is in your model.

In the 'new' glazing assets, there is no 'panes' setting, and there is a VT value shown directly in the UI.  

Thickness of the modeled pane no longer matters.

Be sure to update your Revit to the latest patch as well, as there is a fix in there for a UI bug for the new glazing assets.

David