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Roofs
Roofs are AEC objects that model an entire roof surface. You can create roofs independently
of other objects, or you can select a polyline shape and place a roof on that shape. You can
also select closed walls and place a roof on the walls, change the slope of a roof, and edit its
edges and faces.
Roofs
Roofs are AEC objects that you can use to model an entire multiple-face roof
surface. You can create roofs independently of other objects, or you can place
a roof on a shape defined by a polyline or by a closed set of walls. After creating
the roof, you can change its overall dimensions and slope, or edit its edges and
faces individually. For more flexibility in customizing a roof, you can convert
it to a collection of individual roof slabs.
Roof Slabs
A roof slab models a single face of a roof. Roof slab objects also differ from roof
objects in that each roof slab is a separate entity with no direct connection to
other entities. When you use multiple roof slabs to model an entire roof surface,
you have more flexibility in editing the roof, but the combined topology (3D
geometry) of the roof is not calculated automatically. For this reason, it is
recommended that when you design complex roofs, you start with a roof object.
Then, when the design is substantially complete, but you need more flexibility
for customizing edges and other details, you can convert the roof to individual
roof slabs. For information on creating and editing roof slabs, see Slabs and Roof
Slabs on page 2379.
While roof slabs do not dynamically interact with each other, they do allow
significant control over the roof geometry. For example, you can trim roof slabs
individually, extend them, and miter them with other roof slabs. You can also
cut holes in roof slabs, add or subtract mass elements, and apply detailed fascia
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