I've tried tips from several people (thanks Robert, et. al.) but I can not create a roof no matter what I do. Obviously, I've missed something fundamental.
I've reduced the problem to simple test case. A rectangular building with 6" X 96" wall drawn in plan view. If the walls are unselected no wall too is available. If I select all walls, I can use "Create Roof" but "Roof Face" is greyed out. Selecting all walls and Create roof, I set the eave to Double, Horizonatal - 5.5", Thickness - 5.5" as is bearing inset, Bearing height to 8' (Eave height is greyed out), overhang 12" and create roof in layer "Roof.
In plan view I have a rectangle. A left, right, front, back view yields a view of the walls (in plan view) and a single line representing the roof.
Going to a Rt. Isometric I get an angled view of a rectangle which I suppose to be the roof with the walls still in the original plane.
My questions are fundamental: (1) how do I "see" the roof on the walls? (2) Why doesn't "Roof Face " work? (3)Why does the roof in any view or layer have no thickness? (5)Why is the roof plane always oblique or at odds with the wall view?
No view or rendering technique changes these relationships. I have spent a great deal of time with the manuals and the learning CD's and the text (for example with roof face) glibly states, "easy way to creat a slap or flat roof by converting any closed 2D object into a roof face object." I'm not having this result.
I'd appreciate it if some one would give me the magic word on this as VWA 11.01 gets increasingly less popular here.