Cavity visibility misbehaving in plan

[danielathay]

I've assigned a Cavity material, with an intersection priority of 950, to a slab and positioned it in front of my windows. I'm doing this to cut through an additional layer of independently modeled siding. The cavity successfully provides the desired reveal in both 3D and section, however, the siding is shown running continuously through my plan. I would like the cavity to function the same across all views. Can you offer suggestions?

Operating system used: Mac Intel-based

[Barry Kelly]

At what height is the floor plan cut plane and what is the floor plan display of the siding?

And how did you model the siding - objects, complex profile columns, wall accessory?

A wall accessory is the best option as it will cut the windows automatically.

Here is one created by @Hmooslechner that I modified to English and have tweaked a couple of settings.

https://community.graphisoft.com/t5/Modeling/Standing-Seam-as-wall-accessory-like-the-Roof-Surfacer/...

I just uploaded the lates version i have.

Barry.

[Lingwisyer]

Does the siding have a Projected representation? Symbolic will not display the BM intersection of building elements other than wall to wall.