Actually this doesn't seem to work.
-First off, this is a painful process, that would likely fall apart if foundation walls were to move around. I don't know that I can lock the divisions onto the edges of the foundation footings.
-More to the point, once I exclude the part I wanted to exclude, I can't join the remaining parts back together. This is a problem because I can't join the slab to the wall, which means that my hardwood and underpayment continue through to the foundation wall concrete- sneaking under the studs and insulation.
- A possible workaround would be to make both the original and the parts visible on the sheet, and hide the hardwood, but this doesn't work as now it shows the original excluded substrate.
- I could also divide the hardwood and exclude the parts sneaking underneath the foundation wall, but that's a ton of work for very little.
Why can't I join the parts that I want into a functional slab?
Why is this actually a difficult process? People have substrate underneath their slabs all the time.
Do people implement the substrate as a separate floor slab instead, is this best practice ?
The modify option that we have for walls should be available for floors.