Understanding the Layer Priority in Revit Composite Walls

BIM Software Tip: Understanding the Priority of Revit Composite Wall Layers

1. When creating models, we often use composite walls, which consist of multiple layers with varying priorities. The priority assigned to each layer determines how they interact, as illustrated in the figure below.

2. Walls with higher-priority layers connect first when two walls meet. For instance, the layer with priority 1 in the first wall will connect directly to the layer with priority 1 in the second wall. Since priority 1 is the highest, it can penetrate all lower-priority layers to establish this connection. Conversely, a lower-priority layer cannot pass through another layer of the same or higher priority. The following figure demonstrates how wall layers connect based on their priority levels.

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