I hope this is not wrong to do, but couldnt find how to link to other houzz users 'sfopmo' answer. He stated "The batten cladding is composed of fiber cement window casing from Hardie that was repurposed for the battens. The "boards" are actually continuous cement board panels from Nichiha, some as large as 4x12 feet. They have a factory applied painted finish that was color matched to a Benjamin Moore charcoal grey. The factory finish comes with a 15 year+ warranty." Hope it helps

Well state @janelle_gurney. Sorry for the delayed response. - Greg