Hair line transverse crack in concrete garage floor in brand new home
My home is 6 months old and when sweeping the garage this morning I noticed a transverse hair line crack in the concrete, that has appeared virtually over night. This is my last and final home to be built. (retired) I am concerned that I may have a problem in the future. How should this be repaired and what has caused this to happen? I live in coastal Georgia in a low lying, clay dominant area. We had a lot of rain this past year. My home was built under a contractor/home owner contract. Do I need to call my builder for repairs? Thanks in advance for any advice, help or guidance.