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6. Flexible Ducting Installation
Securing Flexible Duct (Example)
Flexible duct must be installed with supports at maximum intervals of 1.0 metres. Flexible ductwork can be
supported by using good quality aluminium foil tape. Provided that it does not restrict the internal diameter of
the ducting. Ducting installed looped over hanging beams should be installed in such a manner as to ensure the
changes of direction are gradual. Support of the ducting with the use of hangers may be required, see option 2.
NOTE:
Ducting should be kept taut at all times.
Figure 14 Examples of securing ducting
Option 1
Secure the flexible duct.
Option 2
Support flexible duct
by using hangers.
Aluminium foil
tape
Aluminium foil tape
Hanger
NOTE:
Care shall be
taken to minimize
sagging or snaking
of the duct between
supports.