Detecting Flipped or Mirrored Doors and Windows in Revit® (with Add-in)
Why Does This Matter?
When working with doors and windows in Revit, you might encounter a common issue—some instances are flipped (mirrored), whether intentionally or accidentally. While flipping is a useful feature, it can cause major data inconsistencies in your BIM model.
For example, left-handed and right-handed doors may look identical but function differently. Unfortunately, Revit treats them as the same if they share the same type, leading to incorrect schedules, tags, and even construction errors.
To solve this, we developed the Engipedia Flipped Elements Updater, an add-in that automatically updates a parameter whenever a door or window instance is flipped.