Create a roof in Revit

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When you create a roof in Revit, you need to sketch the boundaries of the roof.

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There are several tools you can use when creating roofs.

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The default is the Roof by Footprint tool,

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which allows you to place a roof by creating a roof profile and then extruding the profile.

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To complete this exercise, open the CreatingRoofs [2024].rvt exercise file.

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To begin, from the Project Browser, open the Level 4 floor plan view.

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On the Architecture ribbon, in the Build panel, expand the Roof drop-down and select Roof by Footprint.

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When you do, you enter into sketch mode.

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Notice on the Draw panel, Boundary Line is selected by default.

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In the Draw gallery, Pick Walls is the default, but you can use any of the other Draw tools to sketch a roof.

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For this example, select Pick Walls.

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In the Options bar, you can specify if you want the roof to slope, enter an Overhang value,

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or specify if you want the roof to Extend to wall core, rather than the finished face.

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In the Options bar, disable Defines slope, and then select Extend to wall core.

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Expand the Type Selector and choose the type of roof you want to create.

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You can create a Basic Roof or Sloped Glazing.

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For this example, select one of the basic roofs.

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Next, hover your cursor over an existing wall.

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When it highlights, press TAB to highlight the entire chain of walls.

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Then, click to select them.

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You can use the flip control to change whether the boundary lines are on the exterior or interior face of the walls.

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Make sure the sketch lines appear on the interior face of the walls, and then click Finish Edit Mode.

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Note that if the boundary lines are not in a closed loop, or if any line segments overlap, the tool will yield a warning error.

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Revit displays a confirmation dialog.

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Because you selected Extend to wall core and the roof currently overlaps the walls,

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you must confirm that you want to cut the overlapping volume from the walls.

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Click Yes.

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Switch to a 3D view to see the roof that you just created.