Jimdandy56

I have a problem with my home 18' tall ceiling drywall cracking. The crack varies from 1/4”-3/4” and is not in line with the gyp. board joints (only at the perimeter. It goes through seasonal changes in crack width. We in Texas have some dry spells which causes the clay soil to expand during wet times and shrink during dry times. We try to keep the perimeter of the house as wet as possible to try and limit the soil settling. I know it is foundation related. We have a slab on grade post tension system. We have also had a foundation repair company come to evaluate our settlement issues. They said that we would be wasting our money because there is not enough of a problem to correct it.
Back to our situation, as you can imagine a crack in the slab translates into a wide crack 18’ in the air. Our question is, what system can we use to permanently prevent the cracking? I have thought of doing a commercial type suspended gyp. bd. Ceiling system or using battens over the joints and even crown molding around the perimeter to “hide” the cracks. I have pictures if there were a way to submit them.

Thanks for any ideas.