Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.
How to cut a roof in revit.
Select the object to be cut.
After adding a dormer cut an opening for it through the roof.
An option would be to cut hole in the roof is to use roof voids the following way.
Use the join roof tool to join the dormer roof to the primary roof.
Create an in place family roof at choosing void extrusion ideally in a section view draw the contourline of the void using the pick line option on the base of the inside edge of the roof determine the length of the void ideally in 3d view at wireframe mode extend this in order to intersect the.
Architecture tabopening panel structure tabopening panel use the by face option when you want the.
You can cut openings in the faces of these elements or you can select the entire element to make a vertical cut.
Create the walls and roof elements that make up the dormer.
After creating a roof change the style of the eaves by specifying the rafter cut.
In the drawing area select the roof.
Open the revit family with unattached voids and click create tab properties panel family category and parameters.
For two cut plumb and two cut square specify a value for fascia depth between zero and the thickness of the roof.
Check out the full thing.
Click by face or vertical.
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Click modify tab geometry panel cut drop down cut geometry.
On the properties palette for rafter cut select plumb cut two cut plumb or two cut square.
In the family category and parameters dialog select cut with voids when loaded and click ok.
Load the family into the project and place it.
If you re framing a gable roof on a new house or building a shed or even a doghouse with a gable roof you ll need to cut a number of roof rafters.
The roof rafters provide integral structural support to the roof.