Cracks in the foundation wall
Cracks in the exterior mortar or brick veneer
Slopes or dips in the floor system
Moisture damage and/or fungus growth on the subfloor/joists below a tile shower
Cracked floor joists
Insect damage to beams or joists in crawl spaces
Interior piers in the crawl space that are not supporting the floor system
Extra support added under floor
Improper floor joist repairs
Damaged or broken roof truss members
Loose ridge beam support boards
Moisture damage to the subflooring underneath toilets
Large cracks in concrete slabs