There are many ways to create a rainscreen gap between the back of the siding and the drainage plane of the wall (WRB, exterior insulation, surface of ZIP sheathing); here are at least a few options—on paper and in the real world, as well as some background rainscreen information.
Dan Morrison is a founding editor of ProTradeCraft.com, where he is also the editor-in-chief. Fun fact: Dan is also a founding editor of Green Building Advisor and executive editor of Fine Homebuilding.