Metric Tutorials - Autodesk

708 | Chapter 23 Roofs
6 Click to select all the walls.
Next, sketch the chimney opening.
7 On the Sketch tab of the Design Bar, click Lines.
8 On the Options Bar, click (Rectangle).
9 Using automatic snaps, sketch a rectangle from the upper left corner of the exterior chimney
face to the lower right corner of the exterior chimney face.
10 On the View menu, click Zoom ➤ Zoom To Fit to view the entire floor plan.
Next, add new slope lines to the roof.
11 On the Sketch tab of the Design Bar, click Modify.
12 Select the uppermost horizontal line.
13 On the Options Bar, select Defines Slope.
14 Select one of the shorter line segments shown in the following illustration.
15 On the Options bar, select Defines Slope.
16 On the Sketch tab of the Design Bar, click Finish Roof.
17 When you see the informational dialog, click Yes to attach the walls to the roof.