Autodesk 256B1-05A761-1301 - AutoCAD Revit Structure Suite 2010, User Manual, Page: 855 / 1638

Compound Structure
Walls, floors, ceilings, and roofs can comprise parallel layers. The layers can consist of a single continuous
plane of material (such as plywood) or multiple materials (such as gypsum board, studs, insulation, air spaces,
bricks, and sheathing). In addition, each layer within the component serves a particular purpose. For example,
some layers provide structural support, while others act as thermal barriers. Revit Architecture considers the
function of each layer and matches the layers appropriately.
You can represent each layer by setting the layer's material, thickness, and function. You typically see
compound geometry in floor plans, reflected ceiling plans, and sections. They display in hidden line and
wireframe views. See
Hidden Line Model Graphics Style on page 252 and Wireframe Model Graphics Style
on page 251.
7-layer wall shown in plan view
Materials in Compound Geometry
Each layer in a compound structure is typically displayed with some type of material. For example, one layer
might be the air infiltration barrier, another is plywood, followed by a layer of wood. Revit Architecture has
several predefined materials, or you can create your own using the Materials tool. See
Materials on page 468.
Layer Pattern Display
The material on layers displays with fill patterns. To see the fill pattern in a coarse-scale view, set the Coarse
Scale Fill Pattern and Coarse Scale Fill Color properties of the compound structure. To see the fill pattern in
a medium or fine detail level, change the Detail Level parameter of the View Properties to medium or fine.
See
View Properties on page 259.
Layer Join Cleanup
Compound layer joins clean up only if the layers share the same material. For example, a compound floor
layer can join to a compound wall layer if both layers are drywall. If the layers do not clean up, then a solid
line appears between them in the join. See
Materials on page 468.
Applying a Function to a Layer of a Compound Structure
You assign each layer a specific function so the layer can join to its corresponding functional layer. Layer
functions have an order of precedence.
Rules for Layer Joins
■
The structure layer has the highest priority, Priority 1.
■ Finish 2 has the lowest priority, Priority 5.
■ Revit Architecture connects high priority layers before connecting layers with the lowest priority.
For example, suppose that you join 2 compound walls. A layer in the first wall with Priority 1 joins to a
layer with Priority 1 in the second wall. That Priority 1 layer can pass through lower priority layers before
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