We have a home built on a slab(30 years old) on block foundation. Each winter the slab moves down away from the ceiling, breaking the dry-wall tapped joints at different points. Once the frost is gone it returns to a normal state. Is there a reasonable solution to this problem, short of starting over? I have been considering a "French drain" thinking water is at the root of my problem.
French drain or drain channels would be the starting point and see what happens. Impossible to guess answers on a forum and any suggestions involving structural work could be very dangerous so if you get any, please check them out with a buiulding surveyor on site.