2.5.C Creating Roofs by Extrusion



Practice Exercise (Optional)

Download Practice File:  Starting Point

  1. Create a new 9" Corrugated Deck + Insulation roof by extrusion on the southern building by selecting either the north or south wall as a work plane.
  2. Draw the saw-tooth pattern shown in the image below, with 6'6" hypotenuses and 45 degree angles for all the teeth. The remaining segment should be a flat line.
  3. Duplicate this roof type and call it 3" Corrugated Deck. Delete all layers except the core layers and the thickness is 3".
  4. Edit the roof you created to have a 3" vertical offset to correspond to the thickness of the roof.
  5. Extend the length of the extruded roof to cover the entire building. Use the Attach Top/Base tool to close the gaps between the walls and the roof.

Tip: If you cannot see the entire roof, change the extents of the 3D view box.


When you have completed this exercise, your model should look like this:

Download File:  Ending Point