I thought I took pic's of putting up the Carsiding but couldn't find them.
But I furrowed out the concrete walls with 2X4's laid on their side, drilled holes and put several Tapcon concrete screws thru each one.
Then I started putting up the Carsiding...it goes up really easy and nice. All tongue & groove. Don't have to worry about the splices landing on a stud either. I used a small finish nail gun to attach Carsiding to studs...all hidden in the tongue and groove.
I used 4X4's to finish out the window frames/sills and for the big picture window/mural.
Hope this helps...any more questions, just ask away.
Later...TangleFoot