An l shaped building in this article.
How to make a flat roof in sketchup.
Modeling parapets on flat roofed buildings is easy.
Then click on the protractor tool.
Create an odd shaped building.
Type the thickness of your parapet and then press enter.
With the offset tool click the top face of your building.
Click again somewhere inside the same face to create another face.
Watch this tutorial to find out how to make a basic roof in google sketchup the easy to use 3d modelling tool.
By using a combination of the offset tool and push pull you can make a parapet in less than a minute.
Check out our other tutorials at http tara.