Create a dormer opening.
How to join roofs on different elvels in revit.
I have uploaded a picture of the cad elevation i was given to produce a 3d and my current revit elevation.
Select the edge and change the slope value.
The value can be different for each edge.
First model the 2 roofs.
Located in the architecture tab this tool is used to create a dormer shaped hole in the main roof.
And then join them together using the join unjoin roof tool in the modify tab.
To make the bottom cut i laid out a level cut for a 4 in 12 pitch.
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.
Click modify tab geometry panel join unjoin roof.
There are settings in revit to make roof edges at different heights but thats a real mess to set up right.
To let the jacks sit plumb on top of the sleepers we angled the level cuts to the 3 1 2 in 12 pitch of the shed roof setting the circular saw to a 16 degree bevel the degree equivalent of a 3 1 2 in 12 pitch.
I have tried creating 2 roofs and joining them but have had trouble with this as well.
To do this method you need to select the roof and edit the roof footprint.
If you see the symbol then the edge will be generated having slope.
Click edit footprint to enter the sketch mode.
Then from the modify tab on your ribbon use the join geometry command and select the 7 1 2 roof and the wall.
Basically the roof is not looking like it should and i do not know what is happening.
Changing the slope angle.
Use it to extend the dormer roof to the main roof.
It will join in the wrong order and you will need to use the drop down menu next to join to switch the join order.
I have created a single roof with 2 different levels by adjusting the offset from roof in the line properties.
Select the main roof then click on dormer walls and roof.
I think the easiest way to do this is by modelling 2 seperate roofs.