I have a detached garage addition, I'd like to add a non-load bearing interior wall, 12' long across a 20' width, with the top wall plate perpendicular to the trusses. The addition is insulated to recommended R-value for a northern Indiana climate and the slab has a thermal break on the exterior footing walls.
I'm concerned if slab movement will cause cracking in the drywall ceiling if I make the new wall a tight fit between the slab and the drywall ceiling.