This time we again share our BIM advances in productivity enhancement working with Autodesk® Revit® without using Revit plugins. Just read, learn and simplify your workflow.
As a practitioner of structural engineering and Revit Structure specialist who provides consultations for Revit users, in last year I’ve seen a lot of roofs created in Revit by different users. So in this article I would like to pay some attention to Revit’s roofs. There are different ways to create them, but you might be interested in this trick not everyone knows about.
It matters how you draw the boundary when using Roof by Footprint command. There are two ways of doing it for two different results:
- Draw boundary by using Line, Rectangle, Circle, etc. or Pick Lines options
- Create boundary by using Pick Walls command.
Boundary of the roof will look the same, but properties and roof elevation will be different if you look at them in the section view.
In picture below you see boundary defined by Pick Walls:
- boundary of the roof is restrained to the walls – if you move the wall, roof boundary will be also moved.
- you can choose whether roof construction will be Truss or Rafter;
- you can choose whether roof will be Extended into wall (to core). This gives different positioning of the roof with construction set to Truss.
In next picture you see the exact roof boundary drawn with Line command. Notice that there is no Truss/Rafter option in properties and Extend into wall option is locked.
Effect of these options is clearly visible in section view:
I hope this small tip was helpful and will give you better control over your roof design work using Revit.
