Is normal underground piping any good for ducting?

[Arnold9801]

I understand it’s best to get smooth ducting to avoid restricting the airflow. Does that mean underground 110mm tubing will be suitable?

[Bonner]

What is the ducting for? Underground stuff will do the job but not fit anything else in the system. Rigid plastic ducting is better.

[crispy_wafer]

Not sure the orange stuff is UV protected, so may degrade over time, but I guess your application will suggest whether that's a problem or not... Ventilation systems generally use 4,5,6 inch round ducting so you may need to transition.

[Russell griffiths]

Ducting for what, mvhr, or to run cables through??

[JohnMo]

If you want to use for MVHR or similar, it looks the same, but internal wall is anti bacterial treated to stop nasty stuff from growing with the correct semiflex duct.  Normal underground stuff is a little stiffer and not treated.

[Arnold9801]

My ducting will be for the bathrooms to the roof vent.