Introducing Revit Architecture 2009

In the previous chapters we covered basic modeling techniques to
construct a simple building. We skipped over many additional features so that you can get a handle on essential workflow, the user interface, and making modifications to the model. In this chapter we'll cover more advanced features that are available any time you're modeling in Revit. As you'll see, with a little refinement and creativity, you can make almost anything using standard creation tools. Topics we'll cover includes:
Walls: advanced modeling features
Curtain walls: advanced design techniques
Roofs and slabs: advanced shape editing
With Revit, walls are made from layers of materials that represent the construction materials used to build real walls. These layers can be assigned functions, allowing them to join and react to other similar layers in the model when walls, floors, and roofs meet. The wall core is one of these special layers, and understanding it will help you when you're designing your walls.
Revit has a unique ability to identify a wall core that is much more than a layer of material. The core influences the behavior of the wall and how the wall interacts with other elements in the model. Every wall type in Revit has a core material with a boundary on either side of it. These core boundaries can be dimensioned and snapped to. When other host elements (walls, floors, ceilings, roofs) are drawn, you can use wall-core boundaries to maintain critical relationships. For example, a floor...