Add roof lines with a slope and an overhang defined.
Revit make a flat roof.
You need to make sure you are in a floor plan view in order to use the roof by footprint tool.
The second option in the list is toggle slope defining.
Your now have a flat roof.
This option turns off the roof slope extrusion for the line.
Attach interior walls to the roof.
In the drawing area angle icons identify which lines of the sketch define slope.
Make sure you have selected roof by footprint from the drop down tools.
To create a sloped roof in revit modify the footprint sketch of the roof by selecting and specifying the slope defining edges of the roof.
Get this revit file here.
Let s start off with a flat roof first.
Select the lines of the roof outline and right click over the line.
Select finish roof on the create roof footprint ribbon.
Create a sloped roof in revit step 1 draw your roof step 2 define the slope.
Add a flat roof.
Select the architecture menu and then roof.
Go to the new level for the roof under floor plans on the project browser.