Creating Extrusion Roofs in Revit-03 (Sketch Based Objects

What is an Extrusion Roof in Revit?
An extrusion roof in Revit is a type of roof that is created by extruding a sketch along a path. This allows you to create complex roof shapes that cannot be achieved with traditional roof tools.

How to Draw an Extrusion Roof in Revit
1. Start by creating a sketch: Draw a line or curve that defines the path of the extrusion.
2. Access the Roof by Extrusion tool: Go to the "Architecture" tab > "Roof" > "Roof by Extrusion".
3. Select the sketch: Choose the sketch you created as the path for the extrusion.
4. Define the roof profile: Create a profile that defines the shape of the roof.
5. Specify the extrusion properties: Define the properties of the extrusion, such as the distance and direction.
6. Refine the design: Use Revit's editing tools to adjust the roof's shape and layout.

Tips and Best Practices
1. Use reference planes: Use reference planes to help you create complex roof shapes.
2. Define the roof profile carefully: Make sure the profile is accurate and complete to achieve the desired roof shape.
3. Use the "Pick Lines" option: Use the "Pick Lines" option to quickly select existing lines or curves as the path for the extrusion.

By following these steps and tips, you can create complex and unique roof shapes using the extrusion roof tool in Revit.