The ducts are the delivery system of your air conditioning and heating systems, and the job of the ducts seems quite simple. Ductwork doesn’t have any mechanical components; it simply acts as a pathway between your air conditioning system and the vents in your home.
When was the last time you thought about your ducts? Probably not recently. You can’t really be blamed for that. After all, ducts don’t really do much to demand attention. When your heating system breaks down, you know it because you can’t heat your home.