In some areas it is common to attach vertical 1x2 furring strips before installing board and batten siding.
How to install reverse board and batten siding.
For example i know the horizontally running seam you use z flashing so that any water running down the upper sheet will fall onto the flashing and in front of not behind the lower sheet.
Install 10 x 1 water table skirt board at base of wall.
Install 10 x 1 vertical siding boards from top of water board drip flashing to top of wall spaced 1 apart.
Use a 2 inch wide scrap board as a spacer once you have determined your layout.
When you install plywood board and batten or in my case reverse board and batten siding how do you seal the vertically running seam of two sheets.
Install drip flashing on top edge of skirt board.
Install board and batten siding and trim.
For a reverse board and batten cladding the thin battens are nailed onto the wall first.
If your sheathing is not solid plywood or osb these strips are needed to provide a nailing surface.
Traditionally board and batten siding starts with wide vertical planks boards which are then joined together by thin vertical strips battens to cover the seams.
Space the wide boards so no seam will become visible between plywood sheets.
Measure mark and check the spacing before attaching the first board.
Homesteaders and farmers would use sawmills to cut the long boards and the battens were put in place to make the structure as airtight as possible.
Install 3 x 1 border trim at top of siding.
Nail the wide boards over the plywood to create the look of reverse board and batten.
Nail the strips to framing members.