What is the primary application of flexible fiberglass duct insulation?

The primary application of flexible fiberglass duct insulation is found in commercial and industrial concealed applications. This type of insulation is designed specifically to insulate ductwork in HVAC systems, maintaining efficient temperature control and energy conservation in environments that require substantial climate regulation, such as commercial buildings and industrial facilities. The flexibility of the fiberglass allows it to be easily installed around various duct configurations, ensuring a snug fit that enhances its thermal performance and minimizes energy loss.

In contrast, while residential heating systems may use different insulation materials suited for above-ground applications or visible spaces, they do not typically rely on flexible fiberglass duct insulation to the same extent. Similarly, domestic water heating and outdoor pipe insulation utilize other types of insulation to address their specific needs, such as protecting against freezing in outdoor settings or preventing heat loss in pipes. Flexible fiberglass duct insulation excels in its intended application by providing effective thermal resistance in hidden spaces where traditional insulation might be less effective.