This has been played around with on and off for a few years , below is a library I made about two years ago (thank to a GlennW Tip i think it was) after playing around with rain-screening like AgChief , it has 3 custom wall types and the materials I used to make the Batten material , have a play and see what you think.... Same approach should work for the OP's Walltype I think.   - If you don't see the Battens , you haven't got the Framing Layer On in that particular view... ( or haven