Extract analytical properties of Windows element

Hi everyone,

In my work, I need to extract the analytical properties (U-Value, solar heat gain coefficient, visual light transmittance) of a Revit window with Grasshopper and Rhino.Inside.Revit. The properties are available in Revit as shown in the picture below


However, when I query the element and try to extract the parameter, the value is null

Do you have any idea how this happened or any suggestions on other workflows?

Thank you in advance,
Best regards
window.gh (17.2 KB)

The parameter is not readable by Revit itself - that’s why its reporting None.

You can make a schedule - export it as a CSV and import it into grasshopper.

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As I understand those values are connected to material parameters. It makes no sense as all Autodesk products.

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it seems to be the only solution. thank you very much

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I feels great that I could contribute. Sorry for three screenshots. Dynamo does not allow for resizing the Watch component.

Hi @Gregor_Ruta,
if you are still there, I found what the actual problem. All the “Analytical properties” of the Revit windows are Type parameter instead of Instance parameter. So instead, I can use “Inspect Element” on the Window type to get the U-Value. However, some how the value is still not correct. As you can see in the picture, it gives out 0.00004 instead of 3.6886 W/(m2.K)

Thanks, I will look into that.