Reinforcement Placement in Multi-Layer Sloped Slab

[TasnimTarannum]

while designing a roof slab with a variable thickness top layer for a desired slope. Its thickness ranges from 75 mm at the middle to 25 mm at the edge, and it will be constructed with a welded wire mesh. The bottom part is RCC slab. I need to place rebar only in the RCC slab, but the cover requirement is taken from the wearing course layer, causing the top rebar to also follow the sloped shape. Do I need to draw two separate slabs, one on top of the other? What is the best practice for this situation?

[jay_colcombe]

If would be quicker to have separate slabs as this offer multiple covers for each one, but you have then 2 separate slabs in schedules etc.

I would prefer to have a single Slab and use the Constraints Tool when selecting the rebar when placed to position exactly from Covers and Faces and use Free-Form rebar is outside standard rebar scope