For acoustically treated ductwork and supply ducts, it is important that the fabric of the connector is also insulated in-addition to the insulation fixed on the ducting. This enables the flexible duct connector to achieve maximum effectiveness.
Externally, during manufacturing, insulating the fabric may damage the coating on it, and also make it stiff there by effecting the noise and vibration absorption properties of the fabric. Aeroduct has a complete range of “Insulated Duct Connectors” which use a 25mm thick fiberglass insulation of R value 4.2, sandwiched between the 2 layers of fabric. The various options of fabrics offered in insulated models, ensure that the flexible duct connectors can be used for all possible types of ductwork installations.