Start points and endpoints can be added anywhere on the face of.
Revit cannot split face slope floor.
You can use shape editing tools to manipulate the surface of a flat non sloped floor or roof by defining high and low points for drainage.
The view properties view range view depth must include the floor object in order for the split face to be selectable in a floor plan view.
You can create sloped floors in the building model.
Add a floor material use split face add another material.
Select a vertex edge face or point anywhere on the structural floor to start the split line.
By specifying the elevation of these points you split the surface into sub regions that can slope independently.
Key points you can use shape editing tools to manipulate the surfaces of your floor elements.
Specify a value for the defines slope and slope properties for a single floor sketch line.
Normal manipulation of model patterns move align and rotatable will only apply for straight planes so to fix this unwanted deformation we need to manipulate surface by height.
Working with hardscapes or sloped floors it sometimes happens that a model pattern will deform or behave strange in revit.
Select the floor to modify.
Draw a slope arrow while sketching or editing the floor boundary.
If we switch to a 3d view we can clearly see the triangulated sloped section of our floor.
Click modify floors tabshape editing paneladd split line.
You can use the add split line tool to add linear edges and to split the existing face of a roof or structural floor into smaller sub regions.
This could be say a walk in shower in the corner of a wet room.
Use one of the following methods.
This video shows the process for the split face function for floors in revit architecture.
But now revit will only triangulate the area inside the split line boundary.
Specify a value for the offset from base property for parallel floor sketch lines.
You have a floor object containing a split face region which cannot be selected or edited in a floor plan view.