Revit Cut Roof By Extrusion

The bad thing about extruded roofs is the fact you can t follow along with the footprint of your building the good thing is we can do something about that the objective of this video is to go to the plan view we will then create a void where our walls jag in and out this is going to allow revit to cut the roof properly in plan to get started jump into your revit roofs file in the project browser let s go to the roof level to see all of our walls below let s go.

Revit cut roof by extrusion.

Determine the length of the void ideally in 3d view at wireframe mode extend this in order to. We also need to use a refrence plane upopn which we can sketch the side profile for our extrusion. Elevation of section you can select a reference plane to sketch your profile on as long as you have a named one in your model. Create negative geometry voids to cut solid geometry with the create void tool.

So first of all let s go ahead and create our reference plan. A void form extrusion is created. Within revit the roof by extrusuion tool is used in an elevatation or section view as opposed to the roof by footprint tool which is used in a plan view. On the create tabdraw panel select one of the drawing tools.

Ideally in a section view draw the contourline of the void using the pick line option on the base of the inside edge. Click modify lines tabform panel create form drop down void form. Select the closed loop.