You can only modify this setting if the detail level of the view is coarse this technique is useful if you have a lot of walls removing the tedious process of manually adjusting the join and boundary of each individual wall.
Revit joining exting and new roof.
3 adjust wall join display in view properties.
The eaves and type of cuts are the same but it still says they can t be joined.
4 copy the roof paste it in the same place.
It will place in the new construction phase.
9 join roofs add opening to create dormer.
Hope this is of assistance.
Use it to extend the dormer roof to the main roof.
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.
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.
This tool is located in the modify tab.
Create a void extrusion and make to required cut in the new construction phase apply the cut and done.
It consists of two gables.
3 edit the footprint of the unjoined roof.
1 unjoin the roof.
Join date august 9 2011 location louisville ky posts 6 388 current local time 06 22 pm.
Then follow these 2 steps.
The third and final technique to control the wall joins is to use wall join display in the instance properties of the view.
This should keep you existing roof in tact and show a cut in the new construction phase.
Click modify tab geometry panel join unjoin roof.
Align one edge of the roof to the reference plane.
Use join unjoin roof tool.
I have two roofs that i am trying to join.