Join geometry in future phases

[vblevin]

If you join a roof and a wall and then put the roof into a future phase, the wall retains the cut created by the roof. How is this possible!?

[RDAOU]

@vblevin 

Considering that the Cut/Subtracted geometry existed before you switched the roof, the software assumes that you intend to keep it and considers the "Join Geometry" or the "Attach to roof" happened in the New Construction Phase.

Moreover, unlike inserts families, opeinings and cuts generated by actions such as detach/cut/join are not phasable...hence, Revit on its own, cannot decide whether you wish to keep on the existing phase or entirely remove such cut/join

If you wish to have a phasable Opening/Cut, you need to model that in an insert or a hosted family

[vblevin]

This was posted in the wrong forum. The question was really a suggestion for Autodesk to change this, since the addition of a roof tomorrow can't create a cut in the wall today. In my method of working in Revit this would be very helpful.

[RDAOU]

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@vblevin wrote:

This was posted in the wrong forum. The question was really a suggestion for Autodesk to change this, since the addition of a roof tomorrow can't create a cut in the wall today. In my method of working in Revit this would be very helpful.

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@vblevin 

A suggestion to autodesk to do what exactly? 

You asked how is this possible: 

Q: Can a roof in new Construction cut a wall in in the Exsiting Phase - A: Yes

Q: Why does the Cut show in the Existing Phase - A: Becasue the wrong cutting element or method was used

Q: Can a Wall in Existing Phase show NOT CUT by a Roof in New Construction, and have the Cut between the exiting wall and the new roof only appear in New Construction - A: Yes

Apart from the above, although the term "phase" may suggest to some users that it is associated with time, it is, in fact, not. Revit does not differentiate between yesterday, today, tomorrow, or the day after tomorrow. 

Probably this is not a satsfactory for you and you wish to hear something different answer that fits better in between the margins of you  methods, but the replies posted here also addressed to forum visitor who are searching for clues on how to understand how the software works

[vblevin]

My question was rhetorical to make the point that phases are associated with time... and it doesn't make sense to exclude them from the laws of physics.

[RDAOU]

@vblevin 

Revit is a 3D software, and there is no planned development on Autodesk's roadmap to make it a 4D software (i.e., incorporating time-associated activities). For that, there are other software solutions, such as Navisworks, Solibri, RIB iTWO, and many others.

Same applies to 99% of the bim authering software currently on the market

[RSomppi · Accepted solution]

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@vblevin wrote:

My question was rhetorical to make the point that phases are associated with time... and it doesn't make sense to exclude them from the laws of physics.

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A Revit model is a snapshot in time. Therefore, the physics of time cannot apply. The user needs to model it correctly (as already mentioned above) so that they get the desired results.