What is HVAC ductwork?
Homes contain a series of ducts (or tunnels), which circulates air throughout the house. The ducts circulate warm air in the winter and cold air in the summer. This is your HVAC ductwork.
Not sure about how your ductwork operates? Interested in learning about warning signs and common issues?
Rest assured, there is plenty of information available to learn about ductwork and air sealing. For example, homes with flexible ducts around 10 to 15 years old likely require replacement. Additionally, older flexible ducts frequently contain poor insulation (which may include asbestos as the insulation material). Plus, many contractors do not properly seal the duct connections. As a result, improper installation means homeowners paying to heat or cool the attic and walls.
Ductwork must be well-sealed, insulated, and balanced to ensure your home’s heating and cooling systems work as efficiently as possible. Most homes have leaky ductwork and insufficient air flow, which results in an uncomfortable living environment — regardless of the thermostat setting.
A duct system that is properly sealed can make your home more comfortable, energy efficient, and deliver cleaner air.
Replacing or making improvements to your duct system accomplishes the following goals:
Improves Comfort: Sealing and insulating ducts can help with common comfort problems, such as rooms that are too hot in the summer.
Enhances Indoor Air Quality Fumes from household and garden chemicals, insulation particles, and dust can enter your duct system, aggravating asthma and allergy problems. Sealing ducts can help improve indoor air quality by reducing the risk of pollutants entering ducts and circulating through your home.
Promotes Safety During normal operation, gas appliances such as water heaters, clothes dryers,,and furnaces release combustion gases (like carbon monoxide) through their venting systems. Leaky ductwork in your heating and cooling system may cause back-drafting, where these gases are drawn back into the living space, rather than expelled to the outdoors. Sealing leaks can reduce this risk.
Saves Money Leaky ducts can reduce heating and cooling system efficiency by as much as 20 percent. Sealing and insulating ducts increases efficiency, lowers your energy bills, and can often pay for itself in energy savings. Plus, if you’re planning to install new heating and cooling equipment, a well-designed and sealed duct system may allow you to downsize to a smaller, less costly heating and cooling system that will provide better dehumidification.