To set the 3D Home view - set the desired view, right click on the View Cube and click Set Current View as Home.
You can create multiple 3D views - set the view as desired. In Project Browser, duplicate the 3D View and rename it. Then go back to the default 3D view that was always on the Project Browser to create more views.
Options that can help with the roof -
1) the Join Roof tool (under the Modify tab)
2) model the roof by extrusion (Architecture>Roof>Roof By Extrusion) and then Join
Rina Sahay
Autodesk Expert Elite
Revit Architecture Certified Professional
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