If you use sweeps for things like skirting boards in your model, you will likely want to be able to see the applied material listed in your schedules.
In my quick example below, I have applied a default wall sweep to my wall. You can see in my 'Material Take-off Schedule' the material I have applied (Interiors - Paint - Blue) does not display.
The solution is to select the sweep and convert it to "parts" first.
As soon as you do this, you will notice the finish applied to your wall sweeps, now displays in your schedule.