A slant slope situation might be one where over the course of 15 or 20 horizontal feet the floor slopes down one or two inches.
How to make a sloped floor.
You can envisage that this point may represent a drainage point in our floor that we want to slope down to.
Mix up some concrete mix in the mixer.
Use one of the following methods.
As soon as you place the point revit resolves the new surface by triangulating it.
Draw a slope arrow while sketching or editing the floor boundary.
Specify a value for the defines slope and slope properties for a single floor sketch line.
Make sure you place it within the boundary of the floor element.
Specify a value for the offset from base property for parallel floor sketch lines.
You can create sloped floors in the building model.
For rooms that have a general slope the issue may be foundation problems that require the assistance of a foundation repair company or a general contractor.
If we switch to a 3d view it is far easier to see what is going on.