Element - CompoundStructure Table
Compound Structures are layered elements like Floors, Roofs, Walls and Ceilings.
In the image below, we see the original wall in the Revit Edit Assembly dialog and its representation in the Power BI table. The assembly is represented as _key "29" and each layer is separated by a Layer_key.

_key
Unique key value representing each Compound Structure. Can be used to Count the number of Compound Structures selected or in a project.
CompoundStructure.Width
The width/thickness in decimal inches of the total Compound Structure.
Layer.Function
Same data as Revit Layer Function:
- Finish1
- Finish2
- Insulation
- Membrane
- Structure
- Substrate
Layer.Material
Key to a Material table. If you want to get more information about the material property, you can connect it further using this value.
Layer.Width
The width/thickness in decimal inches of the individual layers of the Compound Structure.
Layer_IsStructural
True if the layer is marked as "Structural", False otherwise.
Layer_key
Represents a unique entry for each layer. If placed in order, will represent same order as in Revit.
📁 Material
Material.Element
Key to the Materials in the Element table. If you want to get more information about the material property, you can connect it further using this value.
Material.Glossiness
Glossiness of materials. A glossiness of 1 represents an (impossibly) perfect shiny surface, resulting in confusing renders.
Material.Name
Material Name.
Material.Smoothness
Smoothness of material.
Material.Transparency
Transparency of Material.
Material_key
—