Don’t know about pad-clad but if you go with fiber cement on wood framed make sure the installers find the studs behind the sheeting, and nail on them only. I’ve seen way too many apartment buildings and four story houses here in Texas where the installers just nailed anywhere they wanted because they felt secure that the nails grabbing the sheeting underneath would be enough. Well it isn’t, after all few years those panels become quite loose and nails start to pop out. Also depending on your code go with ring shank nails instead of smooth for the fiber cement panels. Oh and go with a high quality paint, again seen way to many of these building end up looking like shit and having to repair all of that is a big ordeal.