Installation Guide

Page 20
6. Flexible Duct
Shallow Roof Space
In shallow roof spaces, do not crush or kink exible ducting, as it will reduce air ow severely. 90 degree curve
made of PVC or galvanise can be used as a substitute for the bend, refer to gure 12.
Figure 12
Figure 13
Use 90 degree curve
PVC or galvanise curve to
prevent crushing
Important Note
Please do not crush or kink exible ducting, as it will reduce air ow and may cause noise to occur through the
system. Ducting needs to be kept taut at all times.