Is sheathing necessary on a chimney chase?
I have framed a chimney chase of considerable height over my garage.
I was planning on nailing board and batten siding (1×12 Eastern White Pine with 3″ battens) directly to the frame.
The structure is extremely stout, so I don’t need sheathing for racking resistance; can you think of any compelling reason for me to add it?
The flashing will naturally run up behind the siding. Should I refrain from nailing through the flashing?