Revit offers several methods of creating roofs. Choose the method that best meets the needs of your design.
For examples of basic roof shapes, and a link to a sample Revit model containing these examples, see the Roof Sample File topic.
You can create a roof
- from a building footprint
- as an extrusion
- with sloped glazing
- from a mass instance
A roof cannot cut through windows or doors.
Roof by footprint
- 2D closed-loop sketch of the roof perimeter
- Created when you select walls or draw lines in plan view
- Created at level of view in which it was sketched
- Height is controlled by Base Height Offset property
- Openings are defined by additional closed loops
- Slopes are defined when you apply a slope parameter to sketch lines
Roof by footprint
Roof by extrusion
- Open-loop sketch of the roof profile
- Created when you use lines and arcs to sketch the profile in an elevation view
- Height is controlled by the location of the sketch in elevation view
- Depth is calculated by Revit based on size of sketch, unless you specify start and end points.
It is helpful to use reference planes when sketching the profile of an extruded roof. For example, sketch 3 vertical reference planes parallel to one another, and then sketch a horizontal reference plane that intersects all 3 vertical planes.
Roof by extrusion
The Roof by Extrusion tool lets you create a roof with simple slopes.
To create a roof with complex slopes, you can use massing.
After you create a roof by extrusion, you can rehost the roof or edit the work plane of the roof.
Sloped glazing
You can create sloped glazing using the footprint or extrusion method. Sloped glazing has one or more slope-defining lines and can join to curtain walls and basic wall types.
