I am building a new home and I have decided to use a post tension foundation. My last home had some "swag" problems due to excessive stress in the bricked gables. I had a reputable company provide me the service. They produced engineered drawings that my carpenter followed down to the last detail. It also required about 20 additional yards of concrete because of the many footings that were required by the plans. The cables were then laid and 300 psi concrete was poured. A week later the post tension company returns to pull the cables to complete their job. after about a month or so, I noticed cracks across my slab. One crack runs the entire width of my home (front to back). I called the post tension company and expressed my concerns. They said that this was "normal expansion cracks". Now, 5 months later, these "normal expansion cracks" are much
larger and are affecting my bricks on the front porch. I thought this process would eliminate these problems, is this normal?