What must be done to ductwork located in an attic when replacing or adding cooling equipment?

When replacing or adding cooling equipment, it is essential to ensure that the ductwork located in an attic is properly insulated. Insulating ductwork in an attic helps maintain the temperature of the air being transported, reducing energy loss and improving system efficiency. When ducts are not insulated, the conditioned air can heat up or cool down as it passes through the unconditioned space of the attic, leading to inconsistent temperatures within the living areas of the building and increased energy costs.

Insulation also helps to prevent condensation within the ducts, which can lead to moisture problems, mold growth, and potential damage to the ductwork and the structure. Therefore, insulating the ductwork is not only a best practice for energy efficiency but also a critical consideration for maintaining the integrity and performance of the HVAC system.