renovations with lowering floor in revit

[Antonio Penna]

Hello, everyone. I would like some advice from someone who has already dealt with the following problem: the renovation of a brick building of two floors and attic previews the reduction of the height of the ceiling of the attic in order to make usable (at least until the point that the ground is at 2.70m) also the latter. I now represented the whole building as a "actual state" and should represent the "project state" with the lowering of the loft. the roads I have assumed are two:
1) demolish all the walls of the first floor and the attic with its floors and then put them back again creating them as "project phase" with the new heights;
2) leave all the walls as they are and create only the new quota to which to correspond the new loft (the old must however pass to "demolito"). procedure, this, which is consistent with what will happen in the construction practice but which in revit leaves the old walls (higher) that emerge from the lowered loft.
can any suggestions on the most correct road to take? Thank you all.

 

[gfrank]

Welcome to the forum
you have to do nothing but to dissect the walls (from a view of prospectus: control change> divides) to the share of the new loft.
in the project phase, demolish the wall part exceeding the share of the new ceiling (hammer icon)
for the floors it is correct to demolish them and rebuild them in the phase of project.

If the cut of the walls is complex, you should force two overlapping "sections" of wall, modeling them with the command "modification profile", whose profile "intermediate" corresponds to the share of the new ceiling.
in the project phase always demolishes the surplus part

 

[Antonio Penna]

Thank you, you were very helpful and I hope to return soon with some family I'm customizing. where I work I don't have much time to do tests but the first solution was perfect in its simplicity. the second one gives me error because revit sees overlapping the lines of the rectangles of the two walls. I'm sure I'm wrong. next time.
:finger:

 

[gfrank]

... the second one makes me wrong because revit sees overlapping the lines of the rectangles of the two walls. ...
:finger:

instead of superimposed, it is better to define them "consecutive".
in practice, in the existing phase, draws the first section of the wall up to the height of the new ceiling., therefore, starting from that height, draws the second part of the wall. the latter, will then be demolished in the phase of project