Duct insulation is the material that covers or wraps your home’s ductwork to improve airflow, reduce noise and help save energy. There are many different materials to choose from, including fiberglass, polyethylene and rock wool. The best choice for you depends on your climate, budget and project requirements.
The ducts that carry heated or cooled air throughout your house or building can leak heat into unconditioned spaces, like attics or crawl spaces, as well as through gaps and seams. This makes them one of the biggest sources of energy loss in any house or commercial property. Properly insulated ductwork helps cut energy bills, while also improving indoor air quality and helping HVAC systems last longer.
Insulating your ducts can be an easy DIY project, but there are some factors to keep in mind. The type of insulation you use is important, as is the R-value (a number that measures the resistance to temperature and air flow). It’s also important to consider the type of ductwork you have and whether it needs to be sealed.
Duct insulation is available as flexible duct wrap or rigid insulation board and is usually made from fiberglass or polyethylene. Fiberglass insulation is cheap and easy to install, while polyethylene and rock wool can be more expensive but offer better thermal efficiency. They also have the benefit of being inherently fire-resistant and more resistant to moisture, inhibiting condensation and mold growth. However, handling these materials without proper protective gear can lead to skin and respiratory irritation. insulation duct