See hd version of video tutorial here.
Revit roof secrets.
Using shape editing tools.
Revit then makes the wall meet the underside of the roof correctly.
This is the easiest way to do it.
We can use the same attach top base tool to tidy up this junction.
Roof by footprint can be used for both flat and sloped pitched roofs.
To turn a sloped roof into a flat roof select all roof boundaries purple lines and uncheck defines slope in the option bar.
Please like this video.
In the option bar make sure defines slope is activated for boundary lines.
You need to create the bay window roof separately.
Download manufacturer approved bim content for roofs.
But i m not really sure if this is a best practice.
I believe this tools are not design for this purpose.
For creating complex roof it might be easier if you create separate roof then use join roof tool to join them later.
2 activate slope to create a sloped roof want to create a sloped roof.