Erase the vertical edge you drew in step 3 and the guide you drew in step 2.
How to add a roof to an interior sketchup.
Push pull back your triangular gable.
Watch this tutorial to find out how to make a basic roof in google sketchup the easy to use 3d modelling tool.
Easily creates roofs with various parameters in sketchup plugin name.
Architects and builders often express angles as rise over run ratios.
Draw two edges from the top of your vertical line to the corners of your roof.
Use the line tool to draw a vertical edge from the midpoint of your roof to the angled guide you created in step 2.
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2 use the protractor tool to create an angled guide at the corner of your roof.