Hi,

I live in Florida and my home was built in 1994. Last night I was woken up by a very loud cracking noise under my floor tiles in the laundry room off the garage. None of the tiles broke,but now when I walk on them it sounds like there is loose mortar underneath them.
My question is... what caused this and is there a problem with my slab or did the mortar underneath the tile simply all bust up in this area?