I am trying to create my first stacked wall system. The person who started the wall created it in 4 sections but I am trying to reduce that to three by combining sections 2 and 3. For some reason I can't get it to work, possibly because the entire approach is wrong or because it's technically impossible. Can this be done at all? I really don't want to have to split this into two stacked walls.
AttachedFor some technical reason I'm unable to directly upload a file so I've attadched a DropBox link instead. The zip file contains a project with only the stacked wall and an image file showing the context.
https://www.dropbox.com/s/chcrax36o5ch778/Stacked%20Wall%20Issue.zip
Section 1
A brick cavity wall that goes from slab to joist bearing. The important feature is that the interior sheathing stops at joist bearing level.
Section 2
An extension of Section 1 going to the Top of Brick level that may or may not have interior side sheathing, depending on whether the wall is supported by kickers above the roof.
Section 3
The cap on the brick as the wall transitions to a thinner parapet material on the top section
Section 4
Top section of wall tied to top of parapet.