
ISOVER provides a range of different duct boards suitable for use in self-supporting duct systems, all ready-faced to both surfaces:
- The surface which will form the external face of the duct has a reinforced aluminium foil facing which will act as a vapour barrier and ensure that the duct is air-tight.
- The surface that will form the inner face of the duct, and which will be in contact with the airstream, has a facing of either aluminium, glass mat or fabric, depending on the properties required for the duct.