Repairs are beginning in Louisiana on the first home that contains defective drywall made by a major manufacturer. The home to be repaired by Knauf Plasterboard Tianjin is in Covington. The repairs are slated to begin Thursday. KPT said that the home is part of a court-approved pilot program that is expected to remediate about 300 homes in Louisiana, Alabama, Mississippi and Florida at no cost to the homeowners.