HVAC ductwork in a building is the channels or pipes that carry heated or cooled air to the various zones of the building. A common material for ductwork is the sheet metal ductwork. However, ducts can also be made from duct board, which is fiberglass board covered with an aluminum foil on the outside to act as an insulation and vapor barrier. Another material for ducts is the flex duct. This material is a flexible plastic over a metal wire coil that is then insulated with a layer of fiberglass, and finally a jacket of vinyl or foil for protection.

To make the ductwork more efficient, it’s best to have some form of insulation on the ducts and to make sure they are thoroughly sealed against leaks. The quality of the ducts determines the effectiveness and efficiency of the home being heated or cooled. While it can be done on the interior of the ducts, it is better to insulate them on the exterior to reduce the chances of particles getting trapped, mold and mildew growth and restricted air flow through the air ducts. Ductwork can also get a buildup of dust, hair, insects and microorganisms that can exacerbate allergies and colds as air blows through them. It is recommended to have your ducts cleaned once every year at a minimum.

Some homes aren’t built with the HVAC ductwork if they are heated by a stove or baseboard heat. Most air conditioning units require ductwork to distribute the cooled air from forced air, whole house HVAC units. However, ductless air conditioning and heating units don’t need ductwork to operate, but they are not large enough to heat or cool the whole house.
Contact us at Comfort Air for any questions and more details on HVAC ductwork repairs or installation of duct for air conditioning and heating units.