Learn how to build a roof and add details with basic skills in sketchup.
How to add a roof to an interior sketchup.
Erase the vertical edge you drew in step 3 and the guide you drew in step 2.
For example a 4 12 pronounced 4 in 12 roof slope rises 4 feet for every 12 feet it runs a 1 12 slope is very shallow and a 12 12 slope is very steep when using the protractor tool sketchup s measurements box understands angles.
This video features the push pull move and offset tool.
Push pull back your triangular gable.
Use the line tool to draw a vertical edge from the midpoint of your roof to the angled guide you created in step 2.
2 use the protractor tool to create an angled guide at the corner of your roof.
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.