Mullion Break at intersecting objects

[Anonymous]

I have a custom profile for a H shaped Mullion and everything goes well until a louver is inserted into the wall. A void is cut in the solid panel, but the mullion keeps coming through the louver, window, door, anything from a wall based family.

My question is, how would I get the mullion to stop when it intersects a wall based family, and pick back up after the family. I have already tried cutting the geometry, and this doesn't accomplish anything.

Thanks

[ToanDN]

Is it a curtain wall mullion? If so, you need to add horizontal curtain wall grids at top and bottom of the louver, and remove the middle segment of the vertical grid. That, in turn, will remove the mullion segment crossing the louver family.