Duct Sealing
In houses with forced-air heating and cooling systems, ducts are used to distribute conditioned air throughout the house.
According to the EPA, in a typical house, however, about 20 to 30% of the air that moves through the duct system is lost due to leaks, holes, and poorly connected ducts.
The result is higher utility bills and difficulty keeping the house comfortable, no matter how the thermostat is set.
Common Ductwork Problems
Duct Leakage
Duct leakage causes conditioned air to escape before it reaches certain rooms, meaning your heating or cooling system will need to run longer to get rooms to the desired temperature.
Under-insulated ducts
Missing or inadequate ductwork insulation works against the HVAC system during heating and cooling seasons, forcing the HVAC system to heat or cool the ductwork before proper temperature air can reach a room. HVAC costs escalate, and some rooms stay too hot or too cold even when the HVAC system is operating.
Unbalanced Airflow
Unbalanced air flow due to register location causes some rooms to get too much heat or cooling, while other parts of the house get too little.
Source: skyaircooler.com