A homeowner in Schaumburg, IL contacted Trenchless Innovations because they were experiencing reduced airflow through the vents in their slab floor. Trenchless Innovations performed a camera inspection of the ductwork and found that the reason for reduced airflow was because the ducts were beginning to fall apart. The ductwork in question was made of round cardboard duct tubes that had a metal foil like coating on the inside. This foil coating was peeling away from the rest of the tube, thus causing the reduced airflow. In addition, the cardboard tubes were connected together with metal couplings and elbows that were also beginning to show signs of rust and deterioration.
Trenchless Innovations removed the metal foil pieces that had fallen off the interior of the pipe. Once the pipe was clean and airflow was restored to the system, Trenchless Innovations spray lined the interior of the ducts with a strong, rubberized liner. Spray lining the original cardboard ducts not only coated the interior of the pipes to prevent future peeling of the foil material, but it also restored the structural integrity of the existing pipes and connectors. The duct restoration took place with no digging or extensive construction and rehabilitation costs.