KB Home is offering preliminary inspections to look for obvious signs of Chinese drywall. Contact Tom Schramsky at (772) 360-6896 to arrange one. Inspections take about 45 minutes. Florida's Department of Health has a page on its website with some things to look for. These are the things Schramsky will be checking for when he inspects your home.
If his review shows signs typical of problems attributed to Chinese drywall, he'll schedule a third-party inspection with an environmental company that will confirm whether or not KB Home used Chinese drywall to build your home.