I’m looking to utilize vertical cladding for a new build, but don’t want to pay the premium for composite or thermally modified material like NuCedar or Accoya, etc. – both of which utilize a pretty straightforward install with board cuts at random lengths and staggered butt joint connections, all on top of a furred rain screen, of course. (Attached a reference image for design/aesthetic preference) 

However, other less premium products like Hardie Artisan shiplap (which can be installed vertically) state in the install instructions that you cannot utilize butt joints, must use full boards rather than random lengths to stagger the joints, and require Z-flashing across the entire single horizontal joint. 

Obviously I know that you can bypass these instructions with a good rain screen and wrb, but I’d rather not void any product warranties.

My goal is mainly to span a 2-story gable without a visible horizontal seam (random butt joints are far less obvious). I’m really against having a single horizontal control joint. 

Is there another creative solution that I’m missing that helps avoid having to use a single continuous horizontal z-flashing joint? (I.e. belly banding) Or another moderately priced option that I could utilize? 

P.s. – The only other moderately expensive route I’ve considered is using trex/timbertech PVC cladding and using butt joints like you’d use for Accoya, however I’m not the biggest fan of the aesthetic of these products (high gloss and poor color/texture options imo).

Alas, maybe this is just the reason folks utilize horizontal lap siding everywhere ??

Thanks for any and all help!