Ducts usually are used to distribute conditioned air throughout the building with forced-air heating and cooling systems. Recent studies showed that around 20% of the air that moves through the duct system is lost due to leaks or holes on the walls. This results in high utility bills and keeping the house perfectly insulated.
Hence, a well-designed and properly sealed duct system can make your home more efficient and comfortable. Duct insulation will offer you more information about insulating your house efficiently.