revit modeling errors for computations

[demo1990]

Good evening,
I would like to know from you what mistakes you have encountered in modeling, especially architectural, for the purposes of quantity take off and compute metric.
for example the walls at 90° where the inner and outer plaster area is equal. or an architectural pillar inside the wall the wrong result qto.
Thank you.

 

[Tristan]

subject already dealt with. ..reading the help online you can see that:
"note: when revit computes the volume of materials for individual layers within a wall, some approximations are made to maintain performance. minor discrepancies might appear between the volumes visible in the model and those shown in the material takeoff schedule. these discrepancies tend to occur when you add a sweep or a reveal to a wall, or under certain join conditions."if instead of using entire walls divide into parts the approximations become minimal but it serves more firepower at the hardware level, especially on large and complex projects

 

[demo1990]

the error of stratifications has been known for years.. but I wanted to understand if other professionals with more experience found other errors in modeling with revit.. and if yes, what? Thank you.