See hd version of video tutorial here.
Revit roof secrets.
In the option bar make sure defines slope is activated for boundary lines.
But i m not really sure if this is a best practice.
Download manufacturer approved bim content for roofs.
Using shape editing tools.
Once again select the wall first 1.
For creating complex roof it might be easier if you create separate roof then use join roof tool to join them later.
We can use the same attach top base tool to tidy up this junction.
Revit then makes the wall meet the underside of the roof correctly.
I believe this tools are not design for this purpose.
This is the easiest way to do it.
2 activate slope to create a sloped roof want to create a sloped roof.
Then choose attach top base 2 and finally select the roof 3.
Discover free revit bim objects for roofs.
To turn a sloped roof into a flat roof select all roof boundaries purple lines and uncheck defines slope in the option bar.