I was called out to a home where a new room addition had no air conditioning, making it the hottest room in the house on this hot July day. The problem was a lack of ductwork to the new space. I solved this by tapping into the existing supply trunk line in the attic, running a new insulated flex duct to the addition, and installing a new supply vent in the ceiling. I then balanced the dampers to ensure the new room gets great airflow without taking too much from other areas of the home.