Irregular “free-form” shapes can be modeled using the mesh tool. These items can be converted to roofs with this Add-On.
The new “Create Roofs from Mesh” command will appear in the “Design/Design Extras” menu by default.
HOW TO USE “Mesh To Roof” Add-On
The selected mesh object(s) can be transformed into grouped individual roof planes.
The individual roof planes can be deleted or edited further, their pitch can be modified, etc.
There are more editing options for the resulting surface patches than for the mesh object they originated from.