Elements automatically modify its geometry upon collision with hidden elements

[valerioitaly]

I have a file whose elements, in this case walls, that automatically join the roofs (or other elements).

As you can see in the first picture when I draw the curtain wall it automatically recognize the collision with the roof and mofify itself accordingly.

The second image is the same elements done in a new file where this behaviour does not occur.

I need to obtain the result of the second image, is a file sitteng/option doing it or what? what am i missing?

UPDATE: actually I think its behaviour its connected to the presence of hidden elements (some elements cannot delete on an off Workset). Is there a workaround to have revit not considering those?

[barthbradley]

Can't you Detach it? 

[valerioitaly]

actually I think its behaviour its connected to the presence of hidden elements (some elements cannot delete on an off Workset). Is there a workaround to have revit not considering those?

[ToanDN]

Select the curtain wall and Detach > Detach Top or Detach All. Then the
curtain wall will never modify itself regardless of which workset the roof
is kept.

If you NEVER EVER want any walls or curtain walls to attach, draw a new one
under a roof, answer No at the attach question dialog and check Don't ask
again. Beware that if you want to reverse this decision, you would need to
edit the ini file manually.

[TripleM-Dev.net]

Hi,

When placing the Curtainwall, first set the Join Status to "Disallow", I always disallow the ends of a Curtainwall.

Also uncheck the "Automatically Embed" option in the type setting of the Curtainwall, and manually Cut a wall with the Curtainwall (if needed)

Hope it helps.

- Michel

[valerioitaly]

Yes tried that, the wall is not attached; hence it will not detach and will be that way.
Tryed to draw a new one and it does not ask me to attach it to the roof.

[RDAOU]

@valerioitaly 

You cant share the model can you? or the portion of it (walls/floors) where the issue persists