REVIT Architecture 2010 – Custom Family - Eyebrow Dormer   This two part series explains how to use and in-place family with a solid blend and a vertical opening to create a sloping eyebrow roof dormer. CADclips Login required to access these lessons. Lesson 1: Sloping Eyebrow Roof Dormer Modeling Lesson 2: Sloping Eyebrow Roof Dormer Cleanup