You cannot join a roof to more than one top face of another roof.
Revit 2018 modify extruded roof.
To view the extrusion open a 3d view.
If the go to view dialog displays select the appropriate plan view in which to edit the profile.
Click modify create extrusion tab mode panel finish edit mode.
The work plane with which an extruded roof is associated.
Revit completes the extrusion and returns you to the view in which you started the extrusion.
Cut openings in an extruded roof select the extruded roof and click modify roofs tab opening panel vertical.
Use it to extend the dormer roof to the main roof.
If the go to view dialog displays select the appropriate plan view in which to edit the profile.
Create a roof by extrusion creates a roof by extruding a profile that you sketch.
Use join unjoin roof tool.
Select the extruded roof and click modify roofs tab opening panel vertical.
In the roof reference level and offset dialog select a value for level.
Modify a roof after creating a roof you can change its shape or overhang cut openings or align ridges.
Closed loop sketches in sketch mode click.
This property is read only before creating a roof.
This tool is located in the modify tab.
To raise or lower the roof from the reference level specify a value for offset.
You can join roofs to other roofs or walls or unjoin them if they were previously joined.
The wall must be attached to the target roof and the target roof must be a footprint roof.
Sets the level for the footprint or extruded roof.
You can join a roof to the top face of another roof and the wall below that roof if you select the wall as the target.
Then follow these 2 steps.
To assign a solid extrusion to a subcategory under identity data for subcategory select a subcategory.
Revit places a reference plane at the specified offset.
Using the reference plane you can control the position of the extruded roof in relation to a level.
Roof slope you can define the slope of a roof using various methods.
9 join roofs add opening to create dormer.
The highest level in the project is selected by default.
If not selected it means the roof is not part of a room boundary.
Eaves when creating a roof specify an overhang value to create eaves.
This is a general.
Join roofs you can join roofs to other roofs or walls or unjoin them if they were previously joined.
A plan view representation of the roof displays.
Reference planes define the boundary of the roof.