Create a void extrusion and make to required cut in the new construction phase apply the cut and done.
Revit joining exting and new roof.
I have two roofs that i am trying to join.
It consists of two gables.
Hope this is of assistance.
To create a dormer model required walls and additional roof.
If anyone is still looking for a solution you can make a roof cut into an existing roof using component model in place.
Use it to extend the dormer roof to the main roof.
This should keep you existing roof in tact and show a cut in the new construction phase.
If necessary use the viewcube to spin the design to facilitate selecting the wall or roof edges.
1 unjoin the roof.
How to join two roof aug 19 2013.
4 copy the roof paste it in the same place.
Use join unjoin roof tool.
Select an edge of the roof that you want to join and then select the wall or roof to which you want to join the roof.
9 join roofs add opening to create dormer.
Align one edge of the roof to the reference plane.
3 edit the footprint of the unjoined roof.
The third and final technique to control the wall joins is to use wall join display in the instance properties of the view.
Join date august 9 2011 location louisville ky posts 6 388 current local time 06 22 pm.
Click modify tab geometry panel join unjoin roof.
This tool is located in the modify tab.
It will place in the new construction phase.
Then follow these 2 steps.
The eaves and type of cuts are the same but it still says they can t be joined.