To fix your roof select the edge of the roof that is lower in the sketch of the roof.
Revit offset from roof base.
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.
If you choose truss the plate offset from base is measured from the outside of the wall.
Example 1 a roof by footprint with equal slopes of 30 degrees.
Then from the modify tab on your ribbon use the join geometry command and select the 7 1 2 roof and the wall.
To move the lower boundary above the base level enter a positive number.
Offset from roof base.
This parameter is enabled when a line is set as slope defining and it is not associated with a wall.
If you choose rafter the plate offset from base is measured from the inside of the wall.
For example in the following section view.
I m going to leave mine as it is.
See roof boundary line properties.
Room 2 has a base offset of 1000.
It is a matter of geometry.
To see the effects of this property more clearly set a value for plate offset from base other than 0.
We want to move the ridge by 1 50 meters to left.
The lower boundary of the room starts at level 1.
If the eves are at the same height the overhang is the same and the slope is the same the ridge line will appear in the middle of the roof.
Specifies the offset of the slope line from the base of the roof.
It s a good idea to do it from your elevation views for accuracy.
If you want to adjust the height position of your roof then select the roof and in the properties panel you can change the base offset from level to do that.
To move the lower boundary below the base level enter a negative number.
Select the wall and use the attach top base button to attach it to the underside of only the 5 1 2 roof.
When you are sketching the roof revit assumes all lines of the sketch are at the same height.
Room 1 has a base offset of 0.