The 3 things I learned when I had my foundation repaired that shocked me: clay heave can lift slabs, not just sink them

https://medium.com/@wychanewza/5-red-flags-when-to-call-a-structure-fixing-professional-near-me-fac071afb3e1

The 3 things I learned when I had my foundation repaired that shocked me: clay heave can lift slabs, not just sink them, and root moisture removal can trigger upward movement.