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Wednesday, October 15, 2014

Modelling Mullions in Two Mirrored Pieces for Parametric Corner Joins

Revit Wants you to use a good, clean, consistent technique when setting up Curtain Wall mullions for high quality detailing. Here is one way to set these up for nice corner joins - the advantage is that the curtain wall can be properly 'joined', you do not need to Disallow Joins and hack the glazing position:
When finished, and the endpoints share a common location, the corner looks like the figure below.


Why is this preferable to assigning a single mullion to one curtain wall and leaving the adjacent curtain wall without a mullion?  That would require that the edge handle of the CW without the mullion to be manually aligned to the edge of the mullion where it crosses the panel's path; a feature that should be automatic in Revit.  Changes to the mullion profile won't necessarily be reflected in the open-ended CW and is an opening for errors.

via Jon McFarland at
CurtainwallBIM: Mullion Halves

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